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Zhang Y, Xu Y, Li X. Modeling the impacts of climate change on epifauna distribution in the southern Yellow Sea and East China Sea. THE SCIENCE OF THE TOTAL ENVIRONMENT 2025; 981:179624. [PMID: 40349560 DOI: 10.1016/j.scitotenv.2025.179624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2024] [Revised: 04/29/2025] [Accepted: 05/06/2025] [Indexed: 05/14/2025]
Abstract
To evaluate the potential impact of climate change on the distributions of eight epifaunal species in the southern Yellow Sea and the East China Sea, species distribution models were established using species data collected from bottom trawling surveys and marine environment data connected with the Sixth Phase of the Coupled Model Intercomparison Project. The modeling results revealed that temperature and depth were the most important environmental factors in shaping the distribution patterns of epifauna. The coastal waters of China between 32°N and 34°N are projected to become a key region where climate change will significantly influence the distribution of epifaunal species under future scenarios. Under future climate scenarios, the distributions of Alpheus digitalis, Alpheus japonicus, Amblychaeturichthys hexanema and Solenocera crassicornis are projected to expand northward, crossing the 32°N ecological barrier zone. Even if the targets of the Paris Agreement are achieved, the potential distributions of epifauna will undergo substantial changes. These findings indicated that the ecological barrier is a multi-dimensional environmental space defined by various marine environmental factors, and future climate change may further diminish its effect.
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Affiliation(s)
- Yue Zhang
- Department of Marine Organism Taxonomy & Phylogeny, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yong Xu
- Department of Marine Organism Taxonomy & Phylogeny, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Laboratory for Marine Biology and Biotechnology, Qingdao Marine Science and Technology Center, Qingdao 266237, China; University of Chinese Academy of Sciences, Beijing 100049, China; China Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, China.
| | - Xinzheng Li
- Department of Marine Organism Taxonomy & Phylogeny, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Laboratory for Marine Biology and Biotechnology, Qingdao Marine Science and Technology Center, Qingdao 266237, China; University of Chinese Academy of Sciences, Beijing 100049, China; China Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, China.
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2
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García-Rodríguez E, Gonzalez-Pestana A, Charles R, Palacios MD, Notarbartolo di Sciara G, Alfaro-Shigueto J, Avalos-Castillo CG, Chávez EJ, Espinoza M, Hacohen-Domené A, Hearn AR, Galván-Magaña F, Ketchum JT, Lara-Lizardi F, Morales-Saldaña JM, Serrano NM, Mejía-Falla PA, Navia AF, Peñaherrera-Palma CR, Polanco-Vásquez F, Rodríguez-Arriatti Y, Saldaña-Ruiz LE, Sosa-Nishizaki O, Velez-Zuazo X, Jabado RW. Mapping Important Shark and Ray Areas (ISRAs) in the Central and South American Pacific: Existing knowledge and data needs. PLoS One 2025; 20:e0322445. [PMID: 40333947 PMCID: PMC12058020 DOI: 10.1371/journal.pone.0322445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2024] [Accepted: 03/23/2025] [Indexed: 05/09/2025] Open
Abstract
Identifying critical habitats is key to the conservation and recovery of threatened species. A third of chondrichthyans (sharks, rays, and chimaeras) are threatened with extinction but robust biological and ecological information to delineate critical habitats for many species remains limited. Here, we investigated (1) research outputs and trends across the Central and South American Pacific region to determine whether sufficient information was available to identify critical habitats; (2) whether regional Important Shark and Ray Areas (ISRAs) were spatially representative; (3) what species and which ecological traits were most commonly used in the delineation of critical habitats; and (4) discuss how ISRAs can inform research priorities and area-based management in support of chondrichthyan conservation. Sixty-five ISRAs were identified for 97 of 190 chondrichthyan species occurring in the region (51%). Across key life-history processes, reproductive areas were most identified (n = 50). Of 821 published studies (2,160 entries), 31.48% (28% entries) primarily focused on fisheries and 48.51% included enough information to inform the ISRA process. Most (58.98%) of these studies originated from Mexico (n = 342, 744 entries) and Ecuador (n = 147, 276 entries). France and Honduras had the least regional research outputs relevant to apply the ISRA Criteria. Significant ecological data gaps were identified in oceanic (including areas beyond national jurisdiction), deepwater (>200 m), and along the southern part of the region (i.e., southern Chile). Deepwater species, chimaeras, and 21% of threatened species had knowledge gaps that did not allow the identification of ISRAs. If area-based management decisions in this region were based on ISRAs, and effectively implemented and enforced, diversity hotspots and at least 97 species could receive protection, including 79% of threatened species and 54% of those considered range-restricted. Increased monitoring and research efforts, with a corresponding increase in funding to fill existing gaps is key to support the identification of important habitats across this region.
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Affiliation(s)
- Emiliano García-Rodríguez
- Department of Biological Oceanography, Centro de Investigación Científica y de Educación Superior de Ensenada, Ensenada, Baja California, Mexico
- International Union for Conservation of Nature Species (IUCN), Species Survival Commission (SSC) Shark Specialist Group, Dubai, United Arab Emirates
| | - Adriana Gonzalez-Pestana
- International Union for Conservation of Nature Species (IUCN), Species Survival Commission (SSC) Shark Specialist Group, Dubai, United Arab Emirates
- Carrera de Biología Marina, Universidad Científica del Sur, Lima, Peru
| | - Ryan Charles
- International Union for Conservation of Nature Species (IUCN), Species Survival Commission (SSC) Shark Specialist Group, Dubai, United Arab Emirates
| | - Marta D. Palacios
- International Union for Conservation of Nature Species (IUCN), Species Survival Commission (SSC) Shark Specialist Group, Dubai, United Arab Emirates
- Mobula Conservation, La Paz, Mexico
| | - Giuseppe Notarbartolo di Sciara
- International Union for Conservation of Nature Species (IUCN), Species Survival Commission (SSC) Shark Specialist Group, Dubai, United Arab Emirates
- Tethys Research Institute, Milano, Italy
- IUCN Joint Species Survival Commission (SSC)/World Commission on Protected Areas (WCPA) Marine Mammal Protected Areas Task Force, Gland, Switzerland
| | - Joanna Alfaro-Shigueto
- International Union for Conservation of Nature Species (IUCN), Species Survival Commission (SSC) Shark Specialist Group, Dubai, United Arab Emirates
- Carrera de Biología Marina, Universidad Científica del Sur, Lima, Peru
- ProDelphinus, Lima, Peru
| | - Cristopher G. Avalos-Castillo
- International Union for Conservation of Nature Species (IUCN), Species Survival Commission (SSC) Shark Specialist Group, Dubai, United Arab Emirates
- Centro de Estudios del Mar y Acuicultura, Universidad de San Carlos de Guatemala, Guatemala, Guatemala
| | - Elpis J. Chávez
- Centro Rescate de Especies Marinas Amenazadas, San José, Costa Rica
- MigraMar, Bodega Bay, California, United States of America
| | - Mario Espinoza
- International Union for Conservation of Nature Species (IUCN), Species Survival Commission (SSC) Shark Specialist Group, Dubai, United Arab Emirates
- MigraMar, Bodega Bay, California, United States of America
- Centro de Investigación en Ciencias del Mar y Limnología, Universidad de Costa Rica, San Pedro, San José, Costa Rica
- Escuela de Biología, Universidad de Costa Rica, San Pedro, 11501 San José, Costa Rica
| | - Ana Hacohen-Domené
- Biology Department, Universidad del Valle de Guatemala, GuatemalaGuatemala
| | - Alex R. Hearn
- International Union for Conservation of Nature Species (IUCN), Species Survival Commission (SSC) Shark Specialist Group, Dubai, United Arab Emirates
- MigraMar, Bodega Bay, California, United States of America
- School of Biological and Environmental Sciences, COCIBA, Universidad San Francisco de Quito, Quito, Ecuador
| | - Felipe Galván-Magaña
- Instituto Politécnico Nacional, Centro Interdisciplinario de Ciencias Marinas, La Paz, Baja California Sur, Mexico
| | - James T. Ketchum
- MigraMar, Bodega Bay, California, United States of America
- Pelagios Kakunjá, La Paz, Baja California Sur, México
- Centro de Investigaciones Biológicas del Noroeste, La Paz, Baja California Sur, México
| | - Frida Lara-Lizardi
- MigraMar, Bodega Bay, California, United States of America
- ORGCAS, La Paz, Baja California Sur, Mexico
| | - Jorge Manuel Morales-Saldaña
- International Union for Conservation of Nature Species (IUCN), Species Survival Commission (SSC) Shark Specialist Group, Dubai, United Arab Emirates
- Smithsonian Tropical Research Institute, Balboa, Republic of Panama,
- Department of Biology, McGill University, Montreal, Quebec, Canada
| | - Naití Morales Serrano
- Center for Ecology and Sustainable Management of Oceanic Islands (ESMOI), Universidad Católica del Norte, Coquimbo, Chile
- Instituto de Fomento Pesquero, Valparaíso, Chile
| | - Paola A. Mejía-Falla
- International Union for Conservation of Nature Species (IUCN), Species Survival Commission (SSC) Shark Specialist Group, Dubai, United Arab Emirates
- Wildlife Conservation Society, Colombia, Cali, Colombia
| | - Andrés F. Navia
- International Union for Conservation of Nature Species (IUCN), Species Survival Commission (SSC) Shark Specialist Group, Dubai, United Arab Emirates
- Fundación colombiana para la investigación y conservación de tiburones y rayas, Cali, Colombia
| | | | - Francisco Polanco-Vásquez
- International Union for Conservation of Nature Species (IUCN), Species Survival Commission (SSC) Shark Specialist Group, Dubai, United Arab Emirates
- Instituto Politécnico Nacional, Centro Interdisciplinario de Ciencias Marinas, La Paz, Baja California Sur, Mexico
- Wildlife Conservation Society, Guatemala Program, Flores, Petén, Guatemala
- Centro de Estudios del Mar y Acuicultura, Universidad de San Carlos de Guatemala, Ciudad Universitaria, Zona 12, Guatemala
| | | | - Luz E. Saldaña-Ruiz
- Department of Biological Oceanography, Centro de Investigación Científica y de Educación Superior de Ensenada, Ensenada, Baja California, Mexico
- Secretaría de Ciencia, Humanidades, Tecnología e Innovación (SECIHTI), Ciudad de Mexico, Mexico
| | - Oscar Sosa-Nishizaki
- Department of Biological Oceanography, Centro de Investigación Científica y de Educación Superior de Ensenada, Ensenada, Baja California, Mexico
- International Union for Conservation of Nature Species (IUCN), Species Survival Commission (SSC) Shark Specialist Group, Dubai, United Arab Emirates
| | - Ximena Velez-Zuazo
- International Union for Conservation of Nature Species (IUCN), Species Survival Commission (SSC) Shark Specialist Group, Dubai, United Arab Emirates
- Smithsonian National Zoological Park and Conservation Biology Institute, Washington, District of Columbia, United States of America
| | - Rima W. Jabado
- International Union for Conservation of Nature Species (IUCN), Species Survival Commission (SSC) Shark Specialist Group, Dubai, United Arab Emirates
- College of Science and Engineering, James Cook University, Townsville, Qld, Australia
- Elasmo Project, Dubai, United Arab Emirates.
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3
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González-Trujillo JD, Assis J, Serrão E, Costello MJ, Fragkopoulou E, Mendoza M, Araújo MB. Trophic convergence of marine vertebrate communities worldwide. Proc Natl Acad Sci U S A 2025; 122:e2403754122. [PMID: 40279389 PMCID: PMC12054789 DOI: 10.1073/pnas.2403754122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2024] [Accepted: 03/30/2025] [Indexed: 04/27/2025] Open
Abstract
Biogeographic regions arise due to constraints on species ranges, fostering lineage divergence as a result. Yet, convergent evolution means that evolutionary distinct lineages can share similar characteristics when subjected to similar environmental conditions. The ecological convergence of distinct regions has been demonstrated in terrestrial communities, but it remains uncertain if marine systems exhibit similar patterns, given the greater ease of dispersal in the ocean. Using information on the dietary preferences of marine vertebrates, we develop an ocean regionalization that groups regions with similar trophic communities, describing how species are organized into trophic guilds and how guilds overlap with one another. Six types of trophic communities emerge globally, largely explained by temperature, productivity, and depth. Regions with analogous environments support similar numbers of species with analogous feeding strategies, even if the species do not share the same evolutionary origins. These findings support the notion that independently evolving sets of marine species can converge into functionally analogous trophic communities when exposed to similar environmental conditions. They also provide a benchmark for studying the functional consequences of global environmental change.
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Affiliation(s)
- Juan David González-Trujillo
- Biodiversity Chair, Mediterranean Institute for Agriculture, Environment and Development & Global Change and Sustainability Institute, Universidade de Évora, Évora7004-516, Portugal
- Department of Biogeography and Global Change, National Museum of Natural Sciences, Consejo Superior de Investigaciones Científicas, Madrid28006, Spain
- Facultad de Ciencias, Departamento de Biología, Universidad Nacional de Colombia, Bogotá111321, Colombia
| | - Jorge Assis
- Centre of Marine Sciences of the Algarve, Universidade do Algarve, Faro8005-139, Portugal
- Faculty of Biosciences and Aquaculture, Nord University, Bodo8049, Norway
| | - Ester Serrão
- Centre of Marine Sciences of the Algarve, Universidade do Algarve, Faro8005-139, Portugal
| | - Mark John Costello
- Faculty of Biosciences and Aquaculture, Nord University, Bodo8049, Norway
| | - Eliza Fragkopoulou
- Centre of Marine Sciences of the Algarve, Universidade do Algarve, Faro8005-139, Portugal
| | - Manuel Mendoza
- Department of Biogeography and Global Change, National Museum of Natural Sciences, Consejo Superior de Investigaciones Científicas, Madrid28006, Spain
| | - Miguel B. Araújo
- Biodiversity Chair, Mediterranean Institute for Agriculture, Environment and Development & Global Change and Sustainability Institute, Universidade de Évora, Évora7004-516, Portugal
- Department of Biogeography and Global Change, National Museum of Natural Sciences, Consejo Superior de Investigaciones Científicas, Madrid28006, Spain
- Theoretical Sciences Visiting Program, Okinawa Institute of Science and Technology Graduate University, Onna904-0495, Japan
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4
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Williams B, Balvanera SM, Sethi SS, Lamont TA, Jompa J, Prasetya M, Richardson L, Chapuis L, Weschke E, Hoey A, Beldade R, Mills SC, Haguenauer A, Zuberer F, Simpson SD, Curnick D, Jones KE. Unlocking the soundscape of coral reefs with artificial intelligence: pretrained networks and unsupervised learning win out. PLoS Comput Biol 2025; 21:e1013029. [PMID: 40294093 PMCID: PMC12064026 DOI: 10.1371/journal.pcbi.1013029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2024] [Revised: 05/09/2025] [Accepted: 04/07/2025] [Indexed: 04/30/2025] Open
Abstract
Passive acoustic monitoring can offer insights into the state of coral reef ecosystems at low-costs and over extended temporal periods. Comparison of whole soundscape properties can rapidly deliver broad insights from acoustic data, in contrast to detailed but time-consuming analysis of individual bioacoustic events. However, a lack of effective automated analysis for whole soundscape data has impeded progress in this field. Here, we show that machine learning (ML) can be used to unlock greater insights from reef soundscapes. We showcase this on a diverse set of tasks using three biogeographically independent datasets, each containing fish community (high or low), coral cover (high or low) or depth zone (shallow or mesophotic) classes. We show supervised learning can be used to train models that can identify ecological classes and individual sites from whole soundscapes. However, we report unsupervised clustering achieves this whilst providing a more detailed understanding of ecological and site groupings within soundscape data. We also compare three different approaches for extracting feature embeddings from soundscape recordings for input into ML algorithms: acoustic indices commonly used by soundscape ecologists, a pretrained convolutional neural network (P-CNN) trained on 5.2 million hrs of YouTube audio, and CNN's which were trained on each individual task (T-CNN). Although the T-CNN performs marginally better across tasks, we reveal that the P-CNN offers a powerful tool for generating insights from marine soundscape data as it requires orders of magnitude less computational resources whilst achieving near comparable performance to the T-CNN, with significant performance improvements over the acoustic indices. Our findings have implications for soundscape ecology in any habitat.
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Affiliation(s)
- Ben Williams
- Centre for Biodiversity and Environment Research, Department of Genetics, Evolution and Environment, University College London, London, United Kingdom
- Zoological Society of London, Regents Park, London, United Kingdom
| | - Santiago M. Balvanera
- Centre for Biodiversity and Environment Research, Department of Genetics, Evolution and Environment, University College London, London, United Kingdom
| | - Sarab S. Sethi
- Department of Life Sciences, Imperial College London, London, United Kingdom
| | - Timothy A.C. Lamont
- Lancaster Environment Centre, Lancaster University, Lancaster, United Kingdom
| | | | | | - Laura Richardson
- School of Ocean Sciences, Bangor University, Askew Street, Menai Bridge, Anglesey, United Kingdom
| | - Lucille Chapuis
- School of Biological Sciences, University of Bristol, Bristol, United Kingdom
| | - Emma Weschke
- School of Biological Sciences, University of Bristol, Bristol, United Kingdom
| | - Andrew Hoey
- Australian Research Council Centre of Excellence for Coral Reef Studies, James Cook University, Townsville, Queensland, Australia
| | - Ricardo Beldade
- Australian Research Council Centre of Excellence for Coral Reef Studies, James Cook University, Townsville, Queensland, Australia
- Estación Costera de Investigaciones Marinas, Millennium Nucleus for Ecology and Conservation of Temperate Mesophotic Reef Ecosystems, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Suzanne C. Mills
- CRIOBE, PSL Research University, Moorea, French Polynesia
- Laboratoire d’Excellence “CORAIL”, Perpignan, France
| | | | | | - Stephen D. Simpson
- School of Biological Sciences, University of Bristol, Bristol, United Kingdom
| | - David Curnick
- Zoological Society of London, Regents Park, London, United Kingdom
| | - Kate E. Jones
- Centre for Biodiversity and Environment Research, Department of Genetics, Evolution and Environment, University College London, London, United Kingdom
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5
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Momtazi F, Saeedi H. Exploring latitudinal gradients and environmental drivers of amphipod biodiversity patterns regarding depth and habitat variations. Sci Rep 2024; 14:30547. [PMID: 39695200 DOI: 10.1038/s41598-024-83314-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2024] [Accepted: 12/13/2024] [Indexed: 12/20/2024] Open
Abstract
Amphipods are known as umbrella species in conservation biology that their protection indirectly protects other species. Recent hypotheses suggest a bimodal latitudinal global species richness pattern for amphipods, irrespective of species' depth or habitat type. Phylogeographic hypotheses suggested two distinct procedures for amphipod diversification: ecological radiation and Pangea fragmentation. This study aimed to revisit the bimodal latitudinal pattern of species richness for amphipods, investigate similarities in species composition and main environmental amphipod distribution drivers regarding their depth and habitat variations. The comprehensive database was collected from open-access data and a personal sampling database from the Persian Gulf and the Gulf of Oman. After rigorous data quality controls, the final dataset comprised 1,142,416 distribution records of 6,424 accepted marine amphipod species distributed from 0 to 10,900 m depth. All the species were grouped into pelagic and benthic, shallow-water (> 200 m), and deep-sea (< 200 m). Alpha and gamma species richness and the expected number of species per 50 random samples (ES50) were calculated. Our findings showed that species richness patterns in amphipods are shaped not only by habitat types but also by depth, and they are not significantly bimodal in all groups. Also, the Beta diversity of benthic species revealed distinct diversification patterns between benthic and pelagic species. The species similarity clusters revealed a fragmentation between Gondwana and Laurasia for shallow benthic species. However, the similarity between pelagic amphipod communities is more compatible with ecological parameters. Generalized Additive Models (GAMs) highlighted that environmental variables play a significant role in species distributions, for example, temperature and chlorophyll levels were the main predictors of species richness in shallow waters. However, a complete effect of multiple environmental variables is responsible for deep-sea species gradients. These findings are crucial information to be considered when managing the species richness and establishing conservation priorities for their habitats.
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Affiliation(s)
- Farzaneh Momtazi
- Department of Marine Zoology, Biodiversity Information Section, Senckenberg Research Institute and Natural History Museum, Senckenberganlage 25, 60325, Frankfurt am Main, Germany.
- Marine Bioscience Department, Iranian National Institute for Oceanography and Atmospheric Science (INIOAS), Tehran, Iran.
| | - Hanieh Saeedi
- Department of Marine Zoology, Biodiversity Information Section, Senckenberg Research Institute and Natural History Museum, Senckenberganlage 25, 60325, Frankfurt am Main, Germany.
- Department 15 - Life Sciences, Institute for Ecology, Evolution and Diversity, Goethe University Frankfurt, Max-von-Laue-Straße 13, 60438, Frankfurt am Main, Germany.
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6
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Fernández-Palacios JM, Otto R, Capelo J, Caujapé-Castells J, de Nascimento L, Duarte MC, Elias RB, García-Verdugo C, Menezes de Sequeira M, Médail F, Naranjo-Cigala A, Patiño J, Price J, Romeiras MM, Sánchez-Pinto L, Whittaker RJ. In defence of the entity of Macaronesia as a biogeographical region. Biol Rev Camb Philos Soc 2024; 99:2060-2081. [PMID: 38888215 DOI: 10.1111/brv.13112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Revised: 05/29/2024] [Accepted: 06/04/2024] [Indexed: 06/20/2024]
Abstract
Since its coinage ca. 1850 AD by Philip Barker Webb, the biogeographical region of Macaronesia, consisting of the North Atlantic volcanic archipelagos of the Azores, Madeira with the tiny Selvagens, the Canaries and Cabo Verde, and for some authors different continental coastal strips, has been under dispute. Herein, after a brief introduction on the terminology and purpose of regionalism, we recover the origins of the Macaronesia name, concept and geographical adscription, as well as its biogeographical implications and how different authors have positioned themselves, using distinct terrestrial or marine floristic and/or faunistic taxa distributions and relationships for accepting or rejecting the existence of this biogeographical region. Four main issues related to Macaronesia are thoroughly discussed: (i) its independence from the Mediterranean phytogeographical region; (ii) discrepancies according to different taxa analysed; (iii) its geographical limits and the role of the continental enclave(s), and, (iv) the validity of the phytogeographical region level. We conclude that Macaronesia has its own identity and a sound phytogeographical foundation, and that this is mainly based on three different floristic components that are shared by the Macaronesian core (Madeira and the Canaries) and the outermost archipelagos (Azores and Cabo Verde). These floristic components are: (i) the Palaeotropical-Tethyan Geoflora, formerly much more widely distributed in Europe and North Africa and currently restricted to the three northern archipelagos (the Azores, Madeira and the Canaries); (ii) the African Rand Flora, still extant in the coastal margins of Africa and Arabia, and present in the southern archipelagos (Madeira, the Canaries and Cabo Verde), and (iii) the Macaronesian neoendemic floristic component, represented in all the archipelagos, a result of allopatric diversification promoted by isolation of Mediterranean ancestors that manage to colonize Central Macaronesia and, from there, the outer archipelagos. Finally, a differentiating floristic component recently colonized the different archipelagos from the nearest continental coast, providing them with different biogeographic flavours.
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Affiliation(s)
- José María Fernández-Palacios
- Grupo de Ecología y Biogeografía Insular, Departamento de Botánica, Ecología y Fisiología Vegetal e Instituto Universitario de Enfermedades Tropicales y Salud Pública de Canarias, Universidad de La Laguna, Avenida Astrofísico Francisco Sánchez, s/n. Campus de Anchieta, Apartado 456, San Cristóbal de La Laguna, Santa Cruz de Tenerife, Código postal 38200, Spain
| | - Rüdiger Otto
- Grupo de Ecología y Biogeografía Insular, Departamento de Botánica, Ecología y Fisiología Vegetal e Instituto Universitario de Enfermedades Tropicales y Salud Pública de Canarias, Universidad de La Laguna, Avenida Astrofísico Francisco Sánchez, s/n. Campus de Anchieta, Apartado 456, San Cristóbal de La Laguna, Santa Cruz de Tenerife, Código postal 38200, Spain
| | - Jorge Capelo
- Herbarium, National Institute of Agrarian and Veterinarian Research, Avenida da República, Quinta do Marquês, Oeiras, 2780-157, Portugal
- LEAF Research Centre - Linking Landscape, Environment, Agriculture and Food, University of Lisbon, Tapada de Ajuda, Lisbon, 1349-017, Portugal
| | - Juli Caujapé-Castells
- Departamento de Biodiversidad Molecular y Banco de ADN, Jardín Botánico Canario 'Viera y Clavijo' - Unidad Asociada de I+D+i al CSIC, Cabildo de Gran Canaria, Carretera del Dragonal Km 7 (GC-310), Las Palmas de Gran Canaria, 35017, Spain
| | - Lea de Nascimento
- Grupo de Ecología y Biogeografía Insular, Departamento de Botánica, Ecología y Fisiología Vegetal e Instituto Universitario de Enfermedades Tropicales y Salud Pública de Canarias, Universidad de La Laguna, Avenida Astrofísico Francisco Sánchez, s/n. Campus de Anchieta, Apartado 456, San Cristóbal de La Laguna, Santa Cruz de Tenerife, Código postal 38200, Spain
| | - Maria Cristina Duarte
- cE3c - Center for Ecology, Evolution and Environmental Change & CHANGE - Global Change and Sustainability Institute, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, Lisbon, 1749-016, Portugal
| | - Rui B Elias
- Azorean Biodiversity Group, Centre for Ecology, Evolution and Environmental Changes (cE3c), Faculty of Agriculture and Environmental Sciences, Universidade dos Açores, Angra do Heroismo, 9700-042, Portugal
| | - Carlos García-Verdugo
- Departamento de Botánica, Universidad de Granada, Facultad de Ciencias, Avenida de Fuente Nueva, s/n, Beiro, Granada, 18071, Spain
| | - Miguel Menezes de Sequeira
- Madeira Botanical Group (GBM), Universidade da Madeira, Campus Universitário da Penteada, Funchal, 9020-105, Portugal
| | - Frédéric Médail
- Institut méditerranéen de biodiversité et d'écologie marine et continentale (IMBE), Aix Marseille Univ, Avignon Univ, CNRS, IRD. Campus Aix, Technopôle de l'Environnement Arbois-Méditerranée, Aix-en-Provence cedex 4, 13545, France
| | - Agustín Naranjo-Cigala
- Departamento de Geografía, Universidad de Las Palmas de Gran Canaria, c/ Pérez del Toro, 1, Las Palmas de Gran Canaria, 35004, Spain
| | - Jairo Patiño
- Island Ecology and Evolution Research Group, Instituto de Productos Naturales y Agrobiología (IPNA-CSIC), Avda. Astrofísico Francisco Sánchez, 3, San Cristóbal de La Laguna, Santa Cruz de Tenerife, 38206, Spain
- Departamento de Botánica, Ecología y Fisiología Vegetal, Universidad de La Laguna, Avda. Astrofísico Francisco Sánchez, s/n. Facultad de Farmacia. Apartado 456, San Cristóbal de La Laguna, Santa Cruz de Tenerife, Código postal 38206, Spain
| | - Jonathan Price
- Department of Geography and Environmental Studies, University of Hawaii at Hilo, 200 W. Kāwili St, Hilo, HI, 96720-4091, USA
| | - Maria M Romeiras
- LEAF Research Centre - Linking Landscape, Environment, Agriculture and Food, University of Lisbon, Tapada de Ajuda, Lisbon, 1349-017, Portugal
- cE3c - Center for Ecology, Evolution and Environmental Change & CHANGE - Global Change and Sustainability Institute, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, Lisbon, 1749-016, Portugal
| | - Lázaro Sánchez-Pinto
- Museo de Ciencias Naturales, c/ Fuente Morales, 1, Santa Cruz de Tenerife, 38003, Spain
| | - Robert J Whittaker
- School of Geography and the Environment, University of Oxford, South Parks Road, Oxford, OX1 3QY, UK
- Center for Macroecology, Evolution and Climate, GLOBE Institute, University of Copenhagen, Universitetsparken 15, Building 3, 2nd FL, Copenhagen, DK-2100, Denmark
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7
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Maier SR, Arboe NH, Christiansen H, Krawczyk DW, Meire L, Mortensen J, Planken K, Schulz K, van der Kaaden AS, Vonnahme TR, Zwerschke N, Blicher M. Arctic benthos in the Anthropocene: Distribution and drivers of epifauna in West Greenland. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 951:175001. [PMID: 39053532 DOI: 10.1016/j.scitotenv.2024.175001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2024] [Revised: 07/19/2024] [Accepted: 07/22/2024] [Indexed: 07/27/2024]
Abstract
Albeit remote, Arctic benthic ecosystems are impacted by fisheries and climate change. Yet, anthropogenic impacts are poorly understood, as benthic ecosystems and their drivers have not been mapped over large areas. We disentangle spatial patterns and drivers of benthic epifauna (animals living on the seabed surface) in West Greenland, by integrating an extensive beam-trawl dataset (326 stations, 59-75°N, 30-1400 m water depth) with environmental data. We find high variability at different spatial scales: (1) Epifauna biomass decreases with increasing latitude, sea-ice cover and water depth, related to food limitation. (2) In Greenland, the Labrador Sea in the south shows higher epifauna taxon richness compared to Baffin Bay in the north. Τhe interjacent Davis Strait forms a permeable boundary for epifauna dispersal and a mixing zone for Arctic and Atlantic taxa, featuring regional biodiversity hotspots. (3) The Labrador Sea and Davis Strait provide suitable habitats for filter-feeding epifauna communities of high biomass e.g., sponges on the steep continental slope and sea cucumbers on shallow banks. In Baffin Bay, the deeper continental shelf, more gentle continental slope, lower current speed and lower phytoplankton biomass promote low-biomass epifauna communities, predominated by sea stars, anemones, or shrimp. (4) Bottom trawling reduces epifauna biomass and taxon richness throughout the study area, where sessile filter feeders are particularly vulnerable. Climate change with diminished sea ice cover in Baffin Bay may amplify food availability to epifauna, thereby increasing their biomass. While more species might expand northward due to the general permeability of Davis Strait, an extensive colonization of Baffin Bay by high-biomass filter-feeding epifauna remains unlikely, given the lack of suitable habitats. The pronounced vulnerability of diverse and biomass-rich epifauna communities to bottom trawling emphasizes the necessity for an informed and sustainable ecosystem-based management in the face of rapid climate change.
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Affiliation(s)
- Sandra R Maier
- Greenland Climate Research Centre, Greenland Institute of Natural Resources, Nuuk, Greenland.
| | - Nanette Hammeken Arboe
- Department of Fish and Shellfish, Greenland Institute of Natural Resources, Nuuk, Greenland
| | - Henrik Christiansen
- Department of Fish and Shellfish, Greenland Institute of Natural Resources, Nuuk, Greenland
| | - Diana W Krawczyk
- Greenland Climate Research Centre, Greenland Institute of Natural Resources, Nuuk, Greenland
| | - Lorenz Meire
- Greenland Climate Research Centre, Greenland Institute of Natural Resources, Nuuk, Greenland; Department of Estuarine and Delta Systems, NIOZ Royal Netherlands Institute for Sea Research, Yerseke, the Netherlands
| | - John Mortensen
- Greenland Climate Research Centre, Greenland Institute of Natural Resources, Nuuk, Greenland
| | - Koen Planken
- Greenland Climate Research Centre, Greenland Institute of Natural Resources, Nuuk, Greenland; Department of Estuarine and Delta Systems, NIOZ Royal Netherlands Institute for Sea Research, Yerseke, the Netherlands
| | - Kirstin Schulz
- Oden Institute for Computational Engineering and Sciences, The University of Texas at Austin, Austin, TX, United States
| | | | - Tobias Reiner Vonnahme
- Greenland Climate Research Centre, Greenland Institute of Natural Resources, Nuuk, Greenland
| | - Nadescha Zwerschke
- Greenland Climate Research Centre, Greenland Institute of Natural Resources, Nuuk, Greenland
| | - Martin Blicher
- Greenland Climate Research Centre, Greenland Institute of Natural Resources, Nuuk, Greenland
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8
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Stoeckle MY, Ausubel JH, Hinks G, VanMorter SM. A potential tool for marine biogeography: eDNA-dominant fish species differ among coastal habitats and by season concordant with gear-based assessments. PLoS One 2024; 19:e0313170. [PMID: 39527604 PMCID: PMC11554088 DOI: 10.1371/journal.pone.0313170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2024] [Accepted: 10/20/2024] [Indexed: 11/16/2024] Open
Abstract
Effective ocean management asks for up-to-date knowledge of marine biogeography. Here we compare eDNA and gear-based assessments of marine fish populations using an approach that focuses on the commonest species. The protocol takes advantage of the "hollow curve" of species abundance distributions, with a minority of species comprising the great majority of individuals or biomass. We analyzed new and published teleost eDNA metabarcoding surveys from three neighboring northwest Atlantic coastal locations representing sandy, rocky, or estuary habitat. Fish eDNA followed a hollow curve species abundance distribution at each location-the 10 commonest taxa accounted for more than 90% of eDNA copies. Top ten taxa were designated eDNA-dominant species (eDDS) and categorized as habitat-associated (top 10 in one study) or as shared. eDDS by category were similarly abundant in concurrent bottom trawl and seine surveys. eDDS habitat category profiles correctly classified most (94%-100%) individual eDNA and capture measurements within surveys and recognized estuarine sites in other regional eDNA and seine studies. Using a category metric like that for habitats, eDDS demonstrated strong seasonal turnover concordant with trawl catch weights. eDNA seasonal profiles applied to historical trawl and seine records highlighted known long-term trends in mid-Atlantic fish populations. This study provides evidence that eDNA-abundant fish species differ among coastal habitats and by season consistent with gear-based assessments. Grouping abundant species by category facilitated comparisons among habitats and integration with established surveys. eDNA metabarcoding of dominant fish species potentially offers a useful tool for marine biogeography and ocean monitoring.
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Affiliation(s)
- Mark Y. Stoeckle
- Program for the Human Environment, The Rockefeller University, New York, New York, United States of America
| | - Jesse H. Ausubel
- Program for the Human Environment, The Rockefeller University, New York, New York, United States of America
| | - Greg Hinks
- Bureau of Marine Fisheries, New Jersey Department of Environmental Protection, Port Republic, New Jersey, United States of America
| | - Stacy M. VanMorter
- Bureau of Marine Fisheries, New Jersey Department of Environmental Protection, Port Republic, New Jersey, United States of America
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9
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Jiménez Herrero J, Desiderato A, Vieira PE, Tavares AM, Queiroga H, Santos R. Functional traits of ecosystem engineers as predictors of associated fauna. MARINE ENVIRONMENTAL RESEARCH 2024; 202:106743. [PMID: 39265324 DOI: 10.1016/j.marenvres.2024.106743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2024] [Revised: 09/03/2024] [Accepted: 09/04/2024] [Indexed: 09/14/2024]
Abstract
The ongoing combination of global warming and increased anthropogenic pressure is causing latitudinal shifts in marine species, potentially impacting community composition, local richness, and marine trophic webs. This study investigates the factors influencing the distribution and diversity of intertidal seaweed and associated peracarid communities, including their functional traits, and explores various facets of beta diversity (taxonomic and functional). We hypothesize that: 1) abiotic factors such as temperature and anthropogenic pressure significantly influence seaweed distribution and diversity shifts, and 2) changes in seaweed functional diversity have an impact on the diversity and functioning of its associated peracarid communities. The sampling was conducted along a wide latitudinal gradient in the NE Atlantic (27°N - 65°N), encompassing three distinct ecoregions: Northern European coasts, the Iberian Peninsula, and Macaronesia. The identified seaweed and peracarid species were classified functionally, and taxonomic and functional diversity were analysed on a large geographic scale. The northern region exhibited large brown canopy seaweeds and epibiotic isopods, while Macaronesia featured small red, highly branched, and calcareous crust seaweeds with burrower and tube-building tanaids. The Iberian Peninsula acted as a transitional zone, showcasing a mix of green, red, and brown seaweeds, along with Amphipoda peracarids found across all ecoregions. Our findings underscore the impact of geographic distance on total beta diversity, revealing distinct seaweed and peracarid communities across spatial gradients. Environmental variables, particularly pH and maximum sea surface temperature, emerged as significant factors influencing beta diversity patterns of seaweeds, indicating the potential impact of acidification and heat waves on community composition. In addition, seaweed functional traits were shown to be significant in shaping the diversity and abundance of associated peracarid assemblages, impacting both taxonomic and functional beta diversity. These findings provide crucial insights into the factors influencing the biogeography and biodiversity dynamics of intertidal seaweeds and associated peracarids, offering essential implications for conservation and management strategies amid ongoing environmental changes.
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Affiliation(s)
- Javier Jiménez Herrero
- Marine Plant Ecology Research Group, CCMAR, Centre of Marine Sciences, University of Algarve, Gambelas, 8005-139, Faro, Portugal.
| | - Andrea Desiderato
- Department of Invertebrate Zoology and Hydrobiology, University of Lodz, Banacha 12/16, 90-237, Lodz, Poland; Centre for Environmental and Marine Studies (CESAM), Department of Biology, University of Aveiro, Campus Universitário de Santiago, 3810-193, Aveiro, Portugal
| | - Pedro Emanuel Vieira
- Centre for Environmental and Marine Studies (CESAM), Department of Biology, University of Aveiro, Campus Universitário de Santiago, 3810-193, Aveiro, Portugal
| | - Ana Mafalda Tavares
- Marine Plant Ecology Research Group, CCMAR, Centre of Marine Sciences, University of Algarve, Gambelas, 8005-139, Faro, Portugal
| | - Henrique Queiroga
- Centre for Environmental and Marine Studies (CESAM), Department of Biology, University of Aveiro, Campus Universitário de Santiago, 3810-193, Aveiro, Portugal
| | - Rui Santos
- Marine Plant Ecology Research Group, CCMAR, Centre of Marine Sciences, University of Algarve, Gambelas, 8005-139, Faro, Portugal
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10
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James CC, Allen AE, Lampe RH, Rabines A, Barton AD. Endemic, cosmopolitan, and generalist taxa and their habitat affinities within a coastal marine microbiome. Sci Rep 2024; 14:22408. [PMID: 39333653 PMCID: PMC11437011 DOI: 10.1038/s41598-024-69991-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Accepted: 08/12/2024] [Indexed: 09/29/2024] Open
Abstract
The relative prevalence of endemic and cosmopolitan biogeographic ranges in marine microbes, and the factors that shape these patterns, are not well known. Using prokaryotic and eukaryotic amplicon sequence data spanning 445 near-surface samples in the Southern California Current region from 2014 to 2020, we quantified the proportion of taxa exhibiting endemic, cosmopolitan, and generalist distributions in this region. Using in-situ data on temperature, salinity, and nitrogen, we categorized oceanic habitats that were internally consistent but whose location varied over time. In this context, we defined cosmopolitan taxa as those that appeared in all regional habitats and endemics as taxa that only appeared in one habitat. Generalists were defined as taxa occupying more than one but not all habitats. We also quantified each taxon's habitat affinity, defined as habitats where taxa were significantly more abundant than expected. Approximately 20% of taxa exhibited endemic ranges, while around 30% exhibited cosmopolitan ranges. Most microbial taxa (50.3%) were generalists. Many of these taxa had no habitat affinity (> 70%) and were relatively rare. Our results for this region show that, like terrestrial systems and for metazoans, cosmopolitan and endemic biogeographies are common, but with the addition of a large number of taxa that are rare and randomly distributed.
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Affiliation(s)
- Chase C James
- Scripps Institution of Oceanography, University of California San Diego, 9500 Gilman Dr, La Jolla, CA, 92093, USA
- University of Southern California, 3620 S Vermont Ave, Los Angeles, CA, 90007, USA
| | - Andrew E Allen
- Scripps Institution of Oceanography, University of California San Diego, 9500 Gilman Dr, La Jolla, CA, 92093, USA.
- J. Craig Venter Institute, 4120 Capricorn Lane, La Jolla, CA, 92037, USA.
| | - Robert H Lampe
- Scripps Institution of Oceanography, University of California San Diego, 9500 Gilman Dr, La Jolla, CA, 92093, USA
- J. Craig Venter Institute, 4120 Capricorn Lane, La Jolla, CA, 92037, USA
| | - Ariel Rabines
- Scripps Institution of Oceanography, University of California San Diego, 9500 Gilman Dr, La Jolla, CA, 92093, USA
- J. Craig Venter Institute, 4120 Capricorn Lane, La Jolla, CA, 92037, USA
| | - Andrew D Barton
- Scripps Institution of Oceanography, University of California San Diego, 9500 Gilman Dr, La Jolla, CA, 92093, USA.
- Department of Ecology, Behavior and Evolution, University of California San Diego, 9500 Gilman Dr, La Jolla, CA, 92093, USA.
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11
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Le Joncour A, Mouchet M, Boussarie G, Lavialle G, Pennors L, Bouche L, Le Bourdonnec P, Morandeau F, Kopp D. Is it worthy to use environmental DNA instead of scientific trawling or video survey to monitor taxa in soft-bottom habitats? MARINE ENVIRONMENTAL RESEARCH 2024; 200:106667. [PMID: 39106651 DOI: 10.1016/j.marenvres.2024.106667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2024] [Revised: 07/11/2024] [Accepted: 08/01/2024] [Indexed: 08/09/2024]
Abstract
Non-extractive techniques such as video analysis are increasingly used by scientists to study marine communities instead of extractive methods such as trawling. Currently, environmental DNA (eDNA) analysis is seen as a revolutionary tool to study taxonomic diversity. We aimed to determine which method is the most appropriate to describe fish and commercial invertebrate diversity comparing bottom trawl hauls, video transects and seawater eDNA. Our results reveal that video detected the lowest number of taxa and trawling the highest. eDNA analysis is powerful to describe marine bony fish communities, but some taxa of importance for the ecosystem such as elasmobranchs, crustaceans or molluscs are poorly detected. This may be due to several factors such as marker specificity, incomplete reference gene databases or low DNA release in the environment. For now, the various methods provide different information and none is exhaustive enough to be used alone for biodiversity characterisation.
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Affiliation(s)
- Anna Le Joncour
- DECOD, L'Institut Agro, IFREMER, INRAE, 56100, Lorient, France
| | - Maud Mouchet
- Center of Ecology and Conservation Sciences, UMR 7204 MNHN-SU-CNRS, 57 Rue Cuvier, CP135, Paris, 75005, France
| | - Germain Boussarie
- Center of Ecology and Conservation Sciences, UMR 7204 MNHN-SU-CNRS, 57 Rue Cuvier, CP135, Paris, 75005, France; DECOD, L'Institut Agro, IFREMER, INRAE, 44000, Nantes, France
| | - Gaël Lavialle
- Center of Ecology and Conservation Sciences, UMR 7204 MNHN-SU-CNRS, 57 Rue Cuvier, CP135, Paris, 75005, France
| | | | - Ludovic Bouche
- DECOD, L'Institut Agro, IFREMER, INRAE, 56100, Lorient, France
| | | | | | - Dorothée Kopp
- DECOD, L'Institut Agro, IFREMER, INRAE, 56100, Lorient, France.
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12
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Gallego R, Arias MB, Corral-Lou A, Díez-Vives C, Neave EF, Wang C, Cárdenas P, Steffen K, Taboada S, Villamor A, Kenchington E, Mariani S, Riesgo A. North Atlantic deep-sea benthic biodiversity unveiled through sponge natural sampler DNA. Commun Biol 2024; 7:1015. [PMID: 39160260 PMCID: PMC11333605 DOI: 10.1038/s42003-024-06695-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Accepted: 08/07/2024] [Indexed: 08/21/2024] Open
Abstract
The deep-sea remains the biggest challenge to biodiversity exploration, and anthropogenic disturbances extend well into this realm, calling for urgent management strategies. One of the most diverse, productive, and vulnerable ecosystems in the deep sea are sponge grounds. Currently, environmental DNA (eDNA) metabarcoding is revolutionising the field of biodiversity monitoring, yet complex deep-sea benthic ecosystems remain challenging to assess even with these novel technologies. Here, we evaluate the effectiveness of whole-community metabarcoding to characterise metazoan diversity in sponge grounds across the North Atlantic by leveraging the natural eDNA sampling properties of deep-sea sponges themselves. We sampled 97 sponge tissues from four species across four North-Atlantic biogeographic regions in the deep sea and screened them using the universal COI barcode region. We recovered unprecedented levels of taxonomic diversity per unit effort, especially across the phyla Chordata, Cnidaria, Echinodermata and Porifera, with at least 406 metazoan species found in our study area. These assemblages identify strong spatial patterns in relation to both latitude and depth, and detect emblematic species currently employed as indicators for these vulnerable habitats. The remarkable performance of this approach in different species of sponges, in different biogeographic regions and across the whole animal kingdom, illustrates the vast potential of natural samplers as high-resolution biomonitoring solutions for highly diverse and vulnerable deep-sea ecosystems.
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Affiliation(s)
- Ramón Gallego
- Department of Biology, Facultad de Ciencias, Universidad Autónoma de Madrid, Calle Darwin 2, Cantoblanco, 28049, Madrid, Spain
| | - María Belén Arias
- Department of Life Sciences, Natural History Museum, Cromwell Road, South Kensington, London, SW7 5BD, UK
| | - Andrea Corral-Lou
- Department of Biodiversity and Evolutionary Biology, Museo Nacional de Ciencias Naturales (CSIC), Calle José Gutiérrez Abascal 2, 28006, Madrid, Spain
| | - Cristina Díez-Vives
- Department of Life Sciences, Natural History Museum, Cromwell Road, South Kensington, London, SW7 5BD, UK
- Department of Systems Biology, Centro Nacional de Biotecnología (CSIC), Calle Darwin 3, 28049, Madrid, Spain
| | - Erika F Neave
- School of Biological & Environmental Sciences, Liverpool John Moores University, Liverpool, L3 3AF, UK
| | - Cai Wang
- School of Biological & Environmental Sciences, Liverpool John Moores University, Liverpool, L3 3AF, UK
- Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Mengla, 666303, China
| | - Paco Cárdenas
- Museum of Evolution, Uppsala University, Norbyvägen 16, 752 36, Uppsala, Sweden
| | - Karin Steffen
- Department of Biological Sciences, Vanderbilt University, Nashville, TN, USA
| | - Sergio Taboada
- Department of Biodiversity and Evolutionary Biology, Museo Nacional de Ciencias Naturales (CSIC), Calle José Gutiérrez Abascal 2, 28006, Madrid, Spain
| | - Adriana Villamor
- International Council for the Exploration of the Sea (ICES), H. C. Andersens Boulevard 44-46, DK, 1553, Copenhagen V, Denmark
| | - Ellen Kenchington
- Ocean and Ecosystem Sciences Division, Fisheries and Oceans Canada, Bedford Institute of Oceanography, Dartmouth, NS, B2Y 4A2, Canada
| | - Stefano Mariani
- School of Biological & Environmental Sciences, Liverpool John Moores University, Liverpool, L3 3AF, UK
| | - Ana Riesgo
- Department of Life Sciences, Natural History Museum, Cromwell Road, South Kensington, London, SW7 5BD, UK.
- Department of Biodiversity and Evolutionary Biology, Museo Nacional de Ciencias Naturales (CSIC), Calle José Gutiérrez Abascal 2, 28006, Madrid, Spain.
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13
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Regalado Fernández OR, Parsi-Pour P, Nyakatura JA, Wyneken J, Werneburg I. Correlations between local geoclimatic variables and hatchling body size in the sea turtles Caretta caretta and Chelonia mydas. BMC Ecol Evol 2024; 24:108. [PMID: 39143507 PMCID: PMC11325825 DOI: 10.1186/s12862-024-02290-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2024] [Accepted: 07/12/2024] [Indexed: 08/16/2024] Open
Abstract
It has been widely demonstrated that air and sand temperatures influence the anatomy of sea turtle hatchlings. We examined the impact of precipitation during the nesting season on the hatchling body size of loggerhead and green turtles from 37 beaches worldwide. Longitudinal data collected between 2012 and 2018 from Florida (US) and from a sample on Bõa Vista Island (Cabo Verde) carried out in 2019 showed that loggerhead body size at hatching was negatively correlated with precipitation, while precipitation was not correlated with hatchling body size in green turtles. A meta-analysis revealed that precipitation is positively correlated with hatchling mass in loggerhead turtles, while it is positively correlated with straight carapace length and width in green turtle hatchlings. The strongest influence of precipitation was found in the middle of the incubation period of loggerhead turtles in Cabo Verde, and we posit that this is due to an increase in the uptake of water for embryonic growth. These findings highlight the great importance of understanding the correlated effects of regional environmental variables, such as precipitation, on the development of sea turtle hatchlings and will have an impact on the evaluation of ongoing conservation and climate change discussions.
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Affiliation(s)
- Omar Rafael Regalado Fernández
- Senckenberg Centre for Human Evolution and Palaeoenvironment an der Universität Tübingen, Sigwartstraße 10, Tübingen, 72076, Germany.
- Fachbereich Geowissenschaften an der Universität Tübingen, Hölderlinstraße 12, Tübingen, 72074, Germany.
| | - Parima Parsi-Pour
- AG Vergleichende Zoologie, Institut Für Biologie, Humboldt Universität zu Berlin, Philippstraße 12 (Haus 2), Berlin, 10115, Germany
| | - John A Nyakatura
- AG Vergleichende Zoologie, Institut Für Biologie, Humboldt Universität zu Berlin, Philippstraße 12 (Haus 2), Berlin, 10115, Germany
| | | | - Ingmar Werneburg
- Senckenberg Centre for Human Evolution and Palaeoenvironment an der Universität Tübingen, Sigwartstraße 10, Tübingen, 72076, Germany.
- Fachbereich Geowissenschaften an der Universität Tübingen, Hölderlinstraße 12, Tübingen, 72074, Germany.
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14
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Isaychev A, Schepetov D, Zhou Y, Britayev TA, Ivanenko VN. New Myzostomids (Annelida) in Symbiosis with Feather Stars in the Shallow Waters of the South China Sea (Hainan Island). Animals (Basel) 2024; 14:2265. [PMID: 39123791 PMCID: PMC11310986 DOI: 10.3390/ani14152265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 07/22/2024] [Accepted: 07/29/2024] [Indexed: 08/12/2024] Open
Abstract
This research delves into the molecular and morphological characteristics of myzostomid worms associated with common shallow-water feather stars (Echinodermata: Crinoidea: Comatulidae) in the coastal waters near Sanya, Hainan Island. Through the examination of specimens collected at depths of up to 10 m using scuba diving techniques, we describe three new species (Myzostoma ordinatum sp. nov., M. scopus sp. nov., and M. solare sp. nov.) and report the first record of Myzostoma polycyclus Atkins, 1927 in the South China Sea. The absence of overlap with the seven previously documented Myzostomida species in the shallow waters of Hong Kong and Shenzhen reveals significant gaps in our understanding of marine biodiversity in the South China Sea. These findings, combined with an analysis of available molecular data, underscore the potential existence of unexplored and diverse symbiotic relationships among marine invertebrates within the region.
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Affiliation(s)
- Alexander Isaychev
- Biological Faculty, Shenzhen MSU-BIT University, Shenzhen 518172, China; (A.I.); (D.S.); (Y.Z.)
| | - Dimitry Schepetov
- Biological Faculty, Shenzhen MSU-BIT University, Shenzhen 518172, China; (A.I.); (D.S.); (Y.Z.)
- Department of Invertebrate Zoology, Lomonosov Moscow State University, Moscow 119992, Russia
| | - Yutong Zhou
- Biological Faculty, Shenzhen MSU-BIT University, Shenzhen 518172, China; (A.I.); (D.S.); (Y.Z.)
| | - Temir A. Britayev
- A.N. Severtsov Institute of Ecology and Evolution Russian Academy of Sciences, Moscow 129164, Russia;
| | - Viatcheslav N. Ivanenko
- Biological Faculty, Shenzhen MSU-BIT University, Shenzhen 518172, China; (A.I.); (D.S.); (Y.Z.)
- Department of Invertebrate Zoology, Lomonosov Moscow State University, Moscow 119992, Russia
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15
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Norambuena HV, Barros R, Jaramillo Á, Medrano F, Gaskin C, King T, Baird K, Hernádez CE. Resolving the conflictive phylogenetic relationships of Oceanites (Oceanitidae: Procellariiformes) with the description of a new species. Zootaxa 2024; 5486:451-475. [PMID: 39646824 DOI: 10.11646/zootaxa.5486.4.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2024] [Indexed: 12/10/2024]
Abstract
The family Oceanitidae, formerly considered a subfamily of Hydrobatidae, includes all the small storm-petrels of the southern hemisphere. The ancestor-descendent relationships and evolutionary history of one of its genera, Oceanites, have been partially studied, yielding contrasting results. We revised the phylogenetic relationships of this group using Bayesian inference (BI) based on new sequence data of the mitochondrial gene Cytb and linear morphological measurements of all species and five subspecies-level taxa in Oceanites, including a new taxon from the Chilean Andes. Our BI results show that the Oceanites genus is monophyletic and composed of four well-supported clades (posterior probability > 0.95): (1) chilensis; (2) exasperatus; (3) gracilis, pincoyae, and barrosi sp. nov.; and (4) oceanicus and galapagoensis. The species O. chilensis is a basal clade within Oceanites. According to our time-calibrated tree, the split between Oceanites and the other genera in Family Oceanitidae is estimated to be ~35.9 Mya, and the oldest divergence within Oceanites (the split between O. chilensis and other Oceanites) was dated to the early Miocene, around c. 21.3 Mya. The most probable geographic origin of Oceanites is the Southern Ocean. The morphological data suggest continuous size variation between Oceanites taxa, ranging from smallest in gracilis to largest in exasperatus. Based on our phylogenetic hypothesis, and morphological analyses, we suggest elevating to species status the taxa galapagoensis, chilensis, and exasperatus, and we describe a new taxon barrosi sp. nov., thus recognizing a total of seven species within the genus Oceanites.
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Affiliation(s)
- Heraldo V Norambuena
- Centro Bahía Lomas; Facultad de Ciencias; Universidad Santo Tomás; Chile; Red de Observadores de Aves y Vida Silvestre de Chile; Santiago; Chile.
| | - Rodrigo Barros
- Red de Observadores de Aves y Vida Silvestre de Chile; Santiago; Chile.
| | - Álvaro Jaramillo
- Red de Observadores de Aves y Vida Silvestre de Chile; Santiago; Chile; Oikonos Ecosystem Knowledge. P.O. Box 1918; Kailua HI 96734; USA.
| | - Fernando Medrano
- Red de Observadores de Aves y Vida Silvestre de Chile; Santiago; Chile.
| | - Chris Gaskin
- Northern New Zealand Seabird Trust; 174 Ti Point Road; RD5; Warkworth; 0985; New Zealand.
| | - Tania King
- Department of Zoology; University of Otago; Dunedin; New Zealand.
| | - Karen Baird
- Northern New Zealand Seabird Trust; 174 Ti Point Road; RD5; Warkworth; 0985; New Zealand.
| | - Cristián E Hernádez
- Departamento de Zoología; Facultad de Ciencias Naturales y Oceanográficas; Universidad de Concepción; Chile; Universidad Católica de Santa María; Arequipa; Perú.
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16
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Locke SA, Calhoun DM, Valencia Cruz JM, Ebbs ET, Díaz Pernett SC, Tkach VV, Kinsella JM, Freeman MA, Blanar CA, Johnson PTJ. Expanding on expansus: a new species of Scaphanocephalus from North America and the Caribbean based on molecular and morphological data. Parasitology 2024; 151:679-691. [PMID: 38769847 PMCID: PMC11474018 DOI: 10.1017/s0031182024000647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2024] [Revised: 05/14/2024] [Accepted: 05/16/2024] [Indexed: 05/22/2024]
Abstract
Members of the genus Scaphanocephalus mature in accipitrids, particularly osprey, Pandion haliaetus, with metacercaria causing Black Spot Syndrome in reef fishes. In most of the world, only the type species, Scaphanocephalus expansus (Creplin, 1842) has been reported. Recent molecular studies in the Western Atlantic, Mediterranean and Persian Gulf reveal multiple species of Scaphanocephalus, but have relied on 28S rDNA, mainly from metacercariae, which limits both morphological identification and resolution of closely related species. Here we combine nuclear rDNA with mitochondrial sequences from adult worms collected in osprey across North America and the Caribbean to describe species and elucidate life cycles in Scaphanocephalus. A new species described herein can be distinguished from S. expansus based on overall body shape and size. Phylogenetic analysis of the whole mitochondrial genome of Scaphanocephalus indicates a close relationship with Cryptocotyle. We conclude that at least 3 species of Scaphanocephalus are present in the Americas and 2 others are in the Old World. Specimens in the Americas have similar or identical 28S to those in the Mediterranean and Persian Gulf, but amphi-Atlantic species are unlikely in light of divergence in cytochrome c oxidase I and the lack of amphi-Atlantic avian and fish hosts. Our results provide insight into the geographic distribution and taxonomy of a little-studied trematode recently linked to an emerging pathology in ecologically important reef fishes.
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Affiliation(s)
- Sean A. Locke
- Departamento de Biología, Recinto Universitario de Mayagüez, Universidad de Puerto Rico, Mayagüez, Puerto Rico
| | - Dana M. Calhoun
- Department of Ecology and Evolutionary Biology, University of Colorado, Boulder, CO, USA
| | - José M. Valencia Cruz
- LIMIA – IRFAP. Govern de les Illes Balears, Andratx, Balearic Islands, Spain
- INAGEA (UIB-CAIB), Palma, Balearic Islands, Spain
| | | | - Sandra C. Díaz Pernett
- Departamento de Biología, Recinto Universitario de Mayagüez, Universidad de Puerto Rico, Mayagüez, Puerto Rico
| | - Vasyl V. Tkach
- Department of Biology, University of North Dakota, Grand Forks, ND, USA
| | | | - Mark A. Freeman
- Center for Conservation Medicine and Ecosystem Health, Ross University School of Veterinary Medicine, St. Kitts, West Indies
| | - Christopher A. Blanar
- Department of Biological Sciences, Nova Southeastern University, Fort Lauderdale, FL, USA
| | - Pieter T. J. Johnson
- Department of Ecology and Evolutionary Biology, University of Colorado, Boulder, CO, USA
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17
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Pata PR, Galbraith M, Young K, Margolin AR, Perry RI, Hunt BP. Data-driven determination of zooplankton bioregions and robustness analysis. MethodsX 2024; 12:102676. [PMID: 38617899 PMCID: PMC11015493 DOI: 10.1016/j.mex.2024.102676] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Accepted: 03/23/2024] [Indexed: 04/16/2024] Open
Abstract
Identifying biogeographic regions through cluster analysis of species distribution data is a common method for partitioning ecosystems. Selecting the appropriate cluster analysis method requires a comparison of multiple algorithms. In this study, we demonstrate a data-driven process to select a method for bioregionalization based on community data and test its robustness to data variability following these steps: •We aggregated and curated zooplankton community observations from expeditions in the Northeast Pacific.•We determined the best bioregionalization approach by comparing nine cluster analysis methods using ten goodness of clustering indices.•We evaluated the robustness of the bioregionalization to different sources of sampling and taxonomic variability by comparing the bioregionalization of the overall dataset with bioregionalizations of subsets of the data. The K-means clustering of the log-chord transformed abundance was selected as the optimal method for bioregionalization of the zooplankton dataset. This clustering resulted in the emergence of four bioregions along the cross-shelf gradient: the Offshore, Deep Shelf, Nearshore, and Deep Fjord bioregions. The robustness analyses demonstrated that the bioregionalization was consistent despite variability in the spatial and temporal frequency of sampling, sampling methodology, and taxonomic coverage.
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Affiliation(s)
- Patrick R. Pata
- Institute for the Oceans and Fisheries, University of British Columbia, Vancouver, B.C., Canada
- Department of Earth, Ocean and Atmospheric Sciences, University of British Columbia, Vancouver, B.C., Canada
| | - Moira Galbraith
- Institute of Ocean Sciences, Fisheries & Oceans Canada, Sidney, B.C., Canada
| | - Kelly Young
- Institute of Ocean Sciences, Fisheries & Oceans Canada, Sidney, B.C., Canada
| | - Andrew R. Margolin
- Institute for the Oceans and Fisheries, University of British Columbia, Vancouver, B.C., Canada
- Department of Earth, Ocean and Atmospheric Sciences, University of British Columbia, Vancouver, B.C., Canada
| | - R. Ian Perry
- Institute of Ocean Sciences, Fisheries & Oceans Canada, Sidney, B.C., Canada
- Pacific Biological Station, Fisheries and Oceans Canada, Nanaimo, B.C., Canada
| | - Brian P.V. Hunt
- Institute for the Oceans and Fisheries, University of British Columbia, Vancouver, B.C., Canada
- Department of Earth, Ocean and Atmospheric Sciences, University of British Columbia, Vancouver, B.C., Canada
- Hakai Institute, Victoria, B.C., Canada
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18
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Peraza-Escarrá R, Armenteros M, Fernández-Garcés R, Gracia A. Taxonomic, phylogenetic, and functional diversity of mollusk death assemblages in coral reef and seagrass sediments from two shallow gulfs in Western Cuban Archipelago. PLoS One 2024; 19:e0303539. [PMID: 38743730 PMCID: PMC11093297 DOI: 10.1371/journal.pone.0303539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Accepted: 04/25/2024] [Indexed: 05/16/2024] Open
Abstract
Mollusk death assemblages are formed by shell remnants deposited in the surficial mixed layer of the seabed. Diversity patterns in tropical marine habitats still are understudied; therefore, we aimed to investigate the taxonomic, phylogenetic, and functional diversity of mollusk death assemblages at regional and local scales in coral reef sands and seagrass meadows. We collected sediment samples at 11 sites within two shallow gulfs in the Northwestern Caribbean Sea and Southeastern Gulf of Mexico. All the shells were counted and identified to species level and classified into biological traits. We identified 7113 individuals belonging to 393 species (290 gastropods, 94 bivalves, and nine scaphopods). Diversity and assemblage structure showed many similarities between gulfs given their geological and biogeographical commonalities. Reef sands had higher richness than seagrasses likely because of a more favorable balance productivity-disturbance. Reef sands were dominated by epifaunal herbivores likely feeding on microphytobenthos and bysally attached bivalves adapted to intense hydrodynamic regime. In seagrass meadows, suspension feeders dominated in exposed sites and chemosynthetic infaunal bivalves dominated where oxygen replenishment was limited. Time averaging of death assemblages was likely in the order of 100 years, with stronger effects in reef sands compared to seagrass meadows. Our research provides evidence of the high taxonomic, phylogenetic, and functional diversity of mollusk death assemblages in tropical coastal sediments as result of the influence of scale-related processes and habitat type. Our study highlights the convenience of including phylogenetic and functional traits, as well as dead shells, for a more complete assessment of mollusk biodiversity.
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Affiliation(s)
- Rosely Peraza-Escarrá
- Posgrado en Ciencias del Mar y Limnología, Universidad Nacional Autónoma de México, Ciudad de México, México
- Instituto de Ciencias del Mar y Limnología, Universidad Nacional Autónoma de México, Ciudad de México, México
| | - Maickel Armenteros
- Instituto de Ciencias del Mar y Limnología, Universidad Nacional Autónoma de México, Ciudad de México, México
| | | | - Adolfo Gracia
- Instituto de Ciencias del Mar y Limnología, Universidad Nacional Autónoma de México, Ciudad de México, México
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19
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Albano PG, Schultz L, Wessely J, Taviani M, Dullinger S, Danise S. The dawn of the tropical Atlantic invasion into the Mediterranean Sea. Proc Natl Acad Sci U S A 2024; 121:e2320687121. [PMID: 38557179 PMCID: PMC11009679 DOI: 10.1073/pnas.2320687121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2023] [Accepted: 02/13/2024] [Indexed: 04/04/2024] Open
Abstract
The Mediterranean Sea is a marine biodiversity hotspot already affected by climate-driven biodiversity collapses. Its highly endemic fauna is at further risk if global warming triggers an invasion of tropical Atlantic species. Here, we combine modern species occurrences with a unique paleorecord from the Last Interglacial (135 to 116 ka), a conservative analog of future climate, to model the future distribution of an exemplary subset of tropical West African mollusks, currently separated from the Mediterranean by cold upwelling off north-west Africa. We show that, already under an intermediate climate scenario (RCP 4.5) by 2050, climatic connectivity along north-west Africa may allow tropical species to colonize a by then largely environmentally suitable Mediterranean. The worst-case scenario RCP 8.5 leads to a fully tropicalized Mediterranean by 2100. The tropical Atlantic invasion will add to the ongoing Indo-Pacific invasion through the Suez Canal, irreversibly transforming the entire Mediterranean into a novel ecosystem unprecedented in human history.
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Affiliation(s)
- Paolo G. Albano
- Department of Marine Animal Conservation and Public Engagement, Stazione Zoologica Anton Dohrn, Naples80121, Italy
| | - Lotta Schultz
- Department of Marine Animal Conservation and Public Engagement, Stazione Zoologica Anton Dohrn, Naples80121, Italy
- Department of Biological Sciences, University of Bergen, Bergen5006, Norway
| | - Johannes Wessely
- Department of Botany and Biodiversity Research, University of Vienna, Vienna1030, Austria
| | - Marco Taviani
- Institute of Marine Sciences, National Research Council, Bologna40129, Italy
- Department of Integrative Marine Ecology, Stazione Zoologica Anton Dohrn, Naples80121, Italy
| | - Stefan Dullinger
- Department of Botany and Biodiversity Research, University of Vienna, Vienna1030, Austria
| | - Silvia Danise
- Department of Earth Sciences, University of Florence, Florence50121, Italy
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20
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Williams CT, Garzon F, Cochran JEM, Tanabe LK, Hawkes LA, McIvor AJ, Eweida AA, Marshall PA, Berumen ML. Low diversity and abundance of predatory fishes in a peripheral coral reef ecosystem. Ecol Evol 2024; 14:e10920. [PMID: 38343570 PMCID: PMC10857893 DOI: 10.1002/ece3.10920] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 12/05/2023] [Accepted: 12/21/2023] [Indexed: 10/28/2024] Open
Abstract
Semi-enclosed seas are often associated with elevated local threats and distinct biogeographic patterns among marine fishes, but our understanding of how fish assemblage dynamics vary in relation to relatively small semi-enclosed seas (e.g., the Gulf of Aqaba) remains limited. Baited remote underwater video surveys (n = 111) were conducted across ~300 km of coral reef habitats in the Gulf of Aqaba and the northern Red Sea. A total of 55 predatory fish species were detected, with less than half of all species (n = 23) observed in both basins. Relative abundance patterns between the Gulf of Aqaba and the northern Red Sea were variable among taxa, but nearly twice as many predatory fish were observed per unit of effort in the northern Red Sea. In general, assemblages in both basins were dominated by three taxa (Epinephelinae, Carangidae, and Lethrinidae). Large-bodied and threatened species were recorded at very low abundances. Multivariate analysis revealed distinct assemblage structuring of coral reef predators between the Gulf of Aqaba and the northern Red Sea. Most of the species driving these differences were recorded in both basins, but occurred at varying levels of abundance. Environmental factors were largely unsuccessful in explaining variation in assemblage structuring. These findings indicate that biological assemblages in the Gulf of Aqaba are more distinct than previously reported and that reef fish assemblage structuring can occur even within a relatively small semi-enclosed sea. Despite inter-basin assemblage structuring, the overall low abundance of vulnerable fish species is suggestive of overexploitation in both the Gulf of Aqaba and the northern Red Sea of Saudi Arabia. As the region surveyed is currently undergoing large-scale coastal development, the results presented herein aim to guide spatial management and recovery plans for these coral reef systems in relation to this development.
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Affiliation(s)
- Collin T. Williams
- Red Sea Research Center, Division of Biological and Environmental Science and EngineeringKing Abdullah University of Science and TechnologyThuwalSaudi Arabia
| | - Francesco Garzon
- Hatherly LaboratoriesUniversity of Exeter, Biosciences, Faculty of Health and Life SciencesExeterUK
| | - Jesse E. M. Cochran
- Red Sea Research Center, Division of Biological and Environmental Science and EngineeringKing Abdullah University of Science and TechnologyThuwalSaudi Arabia
| | - Lyndsey K. Tanabe
- Red Sea Research Center, Division of Biological and Environmental Science and EngineeringKing Abdullah University of Science and TechnologyThuwalSaudi Arabia
| | - Lucy A. Hawkes
- Hatherly LaboratoriesUniversity of Exeter, Biosciences, Faculty of Health and Life SciencesExeterUK
| | - Ashlie J. McIvor
- Red Sea Research Center, Division of Biological and Environmental Science and EngineeringKing Abdullah University of Science and TechnologyThuwalSaudi Arabia
- MARE—Marine and Environmental Sciences Centre/ARNET‐Aquatic Research NetworkRegional Agency for the Development of Research, Technology and Innovation (ARDITI)FunchalMadeiraPortugal
| | | | - Paul A. Marshall
- NEOM Nature ReserveNEOMRiyadhSaudi Arabia
- James Cook UniversityTownsvilleQueenslandAustralia
| | - Michael L. Berumen
- Red Sea Research Center, Division of Biological and Environmental Science and EngineeringKing Abdullah University of Science and TechnologyThuwalSaudi Arabia
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21
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Fattorini S, Vitozzi A, Di Biase L, Bergamaschi D. Macroecology of Dung Beetles in Italy. INSECTS 2024; 15:39. [PMID: 38249045 PMCID: PMC10816216 DOI: 10.3390/insects15010039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2023] [Revised: 01/01/2024] [Accepted: 01/04/2024] [Indexed: 01/23/2024]
Abstract
The Italian fauna includes about 170 species/subspecies of dung beetles, being one of the richest in Europe. We used data on dung beetle distribution in the Italian regions to investigate some macroecological patterns. Specifically, we tested if species richness decreased southward (peninsula effect) or northward (latitudinal gradient). We also considered the effects of area (i.e., the species-area relationship), topographic complexity, and climate in explaining dung beetle richness. Finally, we used multivariate techniques to identify biotic relationships between regions. We found no support for the peninsula effect, whereas scarabaeines followed a latitudinal gradient, thus supporting a possible role of southern areas as Pleistocene refuges for this group of mainly thermophilic beetles. By contrast, aphodiines were more associated with cold and humid climates and do not show a distinct latitudinal pattern. In general, species richness was influenced by area, with the Sardinian fauna being however strongly impoverished because of its isolation. Faunal patterns for mainland regions reflect the influence of current ecological settings and historical factors (Pleistocene glaciations) in determining species distributions.
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Affiliation(s)
- Simone Fattorini
- Department of Life, Health and Environmental Sciences, University of L’Aquila, Via Vetoio, 67100 L’Aquila, Italy;
| | - Alessia Vitozzi
- Department of Statistical Sciences, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy;
| | - Letizia Di Biase
- Department of Life, Health and Environmental Sciences, University of L’Aquila, Via Vetoio, 67100 L’Aquila, Italy;
| | - Davide Bergamaschi
- Department of Entomology, Forbes 410, The University of Arizona, Tucson, AZ 85721, USA
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22
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Pimiento C, Albouy C, Silvestro D, Mouton TL, Velez L, Mouillot D, Judah AB, Griffin JN, Leprieur F. Functional diversity of sharks and rays is highly vulnerable and supported by unique species and locations worldwide. Nat Commun 2023; 14:7691. [PMID: 38001077 PMCID: PMC10673927 DOI: 10.1038/s41467-023-43212-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Accepted: 11/02/2023] [Indexed: 11/26/2023] Open
Abstract
Elasmobranchs (sharks, rays and skates) are among the most threatened marine vertebrates, yet their global functional diversity remains largely unknown. Here, we use a trait dataset of >1000 species to assess elasmobranch functional diversity and compare it against other previously studied biodiversity facets (taxonomic and phylogenetic), to identify species- and spatial- conservation priorities. We show that threatened species encompass the full extent of functional space and disproportionately include functionally distinct species. Applying the conservation metric FUSE (Functionally Unique, Specialised, and Endangered) reveals that most top-ranking species differ from the top Evolutionarily Distinct and Globally Endangered (EDGE) list. Spatial analyses further show that elasmobranch functional richness is concentrated along continental shelves and around oceanic islands, with 18 distinguishable hotspots. These hotspots only marginally overlap with those of other biodiversity facets, reflecting a distinct spatial fingerprint of functional diversity. Elasmobranch biodiversity facets converge with fishing pressure along the coast of China, which emerges as a critical frontier in conservation. Meanwhile, several components of elasmobranch functional diversity fall in high seas and/or outside the global network of marine protected areas. Overall, our results highlight acute vulnerability of the world's elasmobranchs' functional diversity and reveal global priorities for elasmobranch functional biodiversity previously overlooked.
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Affiliation(s)
- Catalina Pimiento
- Department of Paleontology, University of Zurich, Zurich, Switzerland.
- Department of Biosciences, Swansea University, Swansea, UK.
- Smithsonian Tropical Research Institute, Balboa, Panama.
| | - Camille Albouy
- Ecosystem and Landscape Evolution, Institute of Terrestrial Ecosystems, Department of Environmental Systems Science, ETH Zurich, Zurich, Switzerland
- Unit of Land Change Science, Swiss Federal Research Institute WSL, Birmensdorf, Switzerland
| | - Daniele Silvestro
- Department of Biology, University of Fribourg, Fribourg, Switzerland
- Swiss Institute of Bioinformatics, Fribourg, Switzerland
- Department of Biological and Environmental Sciences, University of Gothenburg, Gothenburg, Sweden
- Gothenburg Global Biodiversity Centre, Department of Biological and Environmental Sciences, University of Gothenburg, Gothenburg, Sweden
| | - Théophile L Mouton
- MARBEC, Univ Montpellier, CNRS, Ifremer, IRD, Montpellier, France
- International Union for Conservation of Nature Species Survival Commission Shark Specialist Group, P.O. Box 29588, Dubai, United Arab Emirates
| | - Laure Velez
- MARBEC, Univ Montpellier, CNRS, Ifremer, IRD, Montpellier, France
| | - David Mouillot
- MARBEC, Univ Montpellier, CNRS, Ifremer, IRD, Montpellier, France
| | - Aaron B Judah
- Department of Biology, Dalhousie University, Halifax, NS, Canada
| | - John N Griffin
- Department of Biosciences, Swansea University, Swansea, UK
| | - Fabien Leprieur
- MARBEC, Univ Montpellier, CNRS, Ifremer, IRD, Montpellier, France
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23
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Li W, Li Q, Pan Z, Burgaud G, Ma H, Zheng Y, Wang M, Cai L. Seasonal and Spatial Dynamics of Fungal Diversity and Communities in the Intertidal Zones of Qingdao, China. J Fungi (Basel) 2023; 9:1015. [PMID: 37888271 PMCID: PMC10607781 DOI: 10.3390/jof9101015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Revised: 10/10/2023] [Accepted: 10/11/2023] [Indexed: 10/28/2023] Open
Abstract
Intertidal zones comprise diverse habitats and directly suffer from the influences of human activities. Nevertheless, the seasonal fluctuations in fungal diversity and community structure in these areas are not well comprehended. To address this gap, samples of seawater and sediment were collected seasonally from the estuary and swimming beaches of Qingdao's intertidal areas in China and were analyzed using a metabarcoding approach targeting ITS2 rDNA regions. Compared to the seawater community dominated by Ciliophora and Agaricomycetes, the sediment community was rather dominated by Dothideomycetes and Eurotiomycetes. Furthermore, the seawater community shifted with the seasons but not with the locations, while the sediment community shifted seasonally and spatially, with a specific trend showing that Cladosporium, Alternaria, and Aureobasidium occurred predominantly in the estuarine habitats during winter and in the beach habitats during spring. These spatiotemporal shifts in fungal communities' composition were supported by the PERMANOVA test and could be explained partially by the environmental variables checked, including temperature, salinity, and total organic carbon. Unexpectedly, the lowest fungal richness was observed in the summer sediments from two swimming beaches which were attracting a high influx of tourists during summer, leading to a significant anthropogenic influence. Predicted trophic modes of fungal taxa exhibited a seasonal pattern with an abundance of saprotrophic fungi in the summer sediments, positively correlating to the temperature, while the taxa affiliated with symbiotroph and pathotroph-saprotroph occurred abundantly in the winter and spring sediments, respectively. Our results demonstrate the space-time shifts in terms of the fungal community, as well as the trophic modes in the intertidal region, providing in-depth insights into the potential influence of environmental factors and human activity on intertidal mycobiomes.
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Affiliation(s)
- Wei Li
- College of Science, Shantou University, Shantou 515063, China; (Q.L.); (M.W.)
- Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou 515063, China
- College of Marine Life Sciences, Ocean University of China, Qingdao 266100, China; (Z.P.); (H.M.); (Y.Z.)
| | - Qi Li
- College of Science, Shantou University, Shantou 515063, China; (Q.L.); (M.W.)
- Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou 515063, China
| | - Zhihui Pan
- College of Marine Life Sciences, Ocean University of China, Qingdao 266100, China; (Z.P.); (H.M.); (Y.Z.)
| | - Gaëtan Burgaud
- Laboratoire Universitaire de Biodiversité et Écologie Microbienne, Frech National Research Institute for Agriculture, Food and Environment (INRAE), Université de Bretagne Occidentale, F-29280 Plouzané, France;
| | - Hehe Ma
- College of Marine Life Sciences, Ocean University of China, Qingdao 266100, China; (Z.P.); (H.M.); (Y.Z.)
| | - Yao Zheng
- College of Marine Life Sciences, Ocean University of China, Qingdao 266100, China; (Z.P.); (H.M.); (Y.Z.)
| | - Mengmeng Wang
- College of Science, Shantou University, Shantou 515063, China; (Q.L.); (M.W.)
- Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou 515063, China
| | - Lei Cai
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
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24
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Lin HY, Wright S, Costello MJ. Numbers of fish species, higher taxa, and phylogenetic similarity decrease with latitude and depth, and deep-sea assemblages are unique. PeerJ 2023; 11:e16116. [PMID: 37780369 PMCID: PMC10541023 DOI: 10.7717/peerj.16116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Accepted: 08/27/2023] [Indexed: 10/03/2023] Open
Abstract
Species richness has been found to increase from the poles to the tropics but with a small dip near the equator over all marine fishes. Phylogenetic diversity measures offer an alternative perspective on biodiversity linked to evolutionary history. If phylogenetic diversity is standardized for species richness, then it may indicate places with relatively high genetic diversity. Latitudes and depths with both high species and phylogenetic diversity would be a priority for conservation. We compared latitudinal and depth gradients of species richness, and three measures of phylogenetic diversity, namely average phylogenetic diversity (AvPD), the sum of the higher taxonomic levels (STL) and the sum of the higher taxonomic levels divided by the number of species (STL/spp) for modelled ranges of 5,619 marine fish species. We distinguished all, bony and cartilaginous fish groups and four depth zones namely: whole water column; 0 -200 m; 201-1,000 m; and 1,001-6,000 m; at 5° latitudinal intervals from 75°S to 75°N, and at 100 m depth intervals from 0 m to 3,500 m. Species richness and higher taxonomic richness (STL) were higher in the tropics and subtropics with a small dip at the equator, and were significantly correlated among fish groups and depth zones. Species assemblages had closer phylogenetic relationships (lower AvPD and STL/spp) in warmer (low latitudes and shallow water) than colder environments (high latitudes and deep sea). This supports the hypothesis that warmer shallow latitudes and depths have had higher rates of evolution across a range of higher taxa. We also found distinct assemblages of species in different depth zones such that deeper sea species are not simply a subset of shallow assemblages. Thus, conservation needs to be representative of all latitudes and depth zones to encompass global biodiversity.
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Affiliation(s)
- Han-Yang Lin
- Institute of Marine Science, University of Auckland, Auckland, New Zealand
| | - Shane Wright
- Institute of Marine Science, University of Auckland, Auckland, New Zealand
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25
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Gordó-Vilaseca C, Pecuchet L, Coll M, Reiss H, Jüterbock A, Costello MJ. Over 20% of marine fishes shifting in the North and Barents Seas, but not in the Norwegian Sea. PeerJ 2023; 11:e15801. [PMID: 37667749 PMCID: PMC10475276 DOI: 10.7717/peerj.15801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Accepted: 07/06/2023] [Indexed: 09/06/2023] Open
Abstract
Climate warming generally induces poleward range expansions and equatorward range contractions of species' environmental niches on a global scale. Here, we examined the direction and magnitude of species biomass centroid geographic shifts in relation to temperature and depth for 83 fish species in 9,522 standardised research trawls from the North Sea (1998-2020) to the Norwegian (2000-2020) and Barents Sea (2004-2020). We detected an overall significant northward shift of the marine fish community biomass in the North Sea, and individual species northward shifts in the Barents and North Seas, in 20% and 25% of the species' biomass centroids in each respective region. We did not detect overall community shifts in the Norwegian Sea, where two species (8%) shifted in each direction (northwards and southwards). Among 9 biological traits, species biogeographic assignation, preferred temperature, age at maturity and maximum depth were significant explanatory variables for species latitudinal shifts in some of the study areas, and Arctic species shifted significantly faster than boreal species in the Barents Sea. Overall, our results suggest a strong influence of other factors, such as biological interactions, in determining several species' recent geographic shifts.
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Affiliation(s)
| | - Laurene Pecuchet
- The Norwegian College of Fishery Science, University of Tromsø, Tromsø, Norway
| | - Marta Coll
- Institut de Ciències del Mar (ICM-CSIC) & Ecopath International Initiative (EII), Barcelona, Spain
| | - Henning Reiss
- Faculty of Biosciences and Aquaculture, Nord University, Bodø, Norway
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26
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Neave EF, Cai W, Arias MB, Harper LR, Riesgo A, Mariani S. Trapped DNA fragments in marine sponge specimens unveil North Atlantic deep-sea fish diversity. Proc Biol Sci 2023; 290:20230771. [PMID: 37644836 PMCID: PMC10465980 DOI: 10.1098/rspb.2023.0771] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Accepted: 08/02/2023] [Indexed: 08/31/2023] Open
Abstract
Sponges pump water to filter feed and for diffusive oxygen uptake. In doing so, trace DNA fragments from a multitude of organisms living around them are trapped in their tissues. Here we show that the environmental DNA retrieved from archived marine sponge specimens can reconstruct the fish communities at the place of sampling and discriminate North Atlantic assemblages according to biogeographic region (from Western Greenland to Svalbard), depth habitat (80-1600 m), and even the level of protection in place. Given the cost associated with ocean biodiversity surveys, we argue that targeted and opportunistic sponge samples - as well as the specimens already stored in museums and other research collections - represent an invaluable trove of biodiversity information that can significantly extend the reach of ocean monitoring.
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Affiliation(s)
- Erika F. Neave
- School of Biological & Environmental Sciences, Liverpool John Moores University, Byrom St, Liverpool L3 3AF, UK
- Natural History Museum, Cromwell Rd, South Kensington, London SW7 5BD, UK
| | - Wang Cai
- School of Biological & Environmental Sciences, Liverpool John Moores University, Byrom St, Liverpool L3 3AF, UK
| | - Maria Belén Arias
- Natural History Museum, Cromwell Rd, South Kensington, London SW7 5BD, UK
| | - Lynsey R. Harper
- School of Biological & Environmental Sciences, Liverpool John Moores University, Byrom St, Liverpool L3 3AF, UK
- The Freshwater Biological Association, The Hedley Wing, YMCA North Campus, Lakeside, Newby Bridge, Cumbria LA12 8BD, UK
| | - Ana Riesgo
- Natural History Museum, Cromwell Rd, South Kensington, London SW7 5BD, UK
- Department of Biodiversity and Evolutionary Biology, Museo Nacional de Ciencias Naturales de Madrid, Calle José Gutiérrez Abascal 2, 28006 Madrid, Spain
| | - Stefano Mariani
- School of Biological & Environmental Sciences, Liverpool John Moores University, Byrom St, Liverpool L3 3AF, UK
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Assis J, Alberto F, Macaya EC, Castilho Coelho N, Faugeron S, Pearson GA, Ladah L, Reed DC, Raimondi P, Mansilla A, Brickle P, Zuccarello GC, Serrão EA. Past climate-driven range shifts structuring intraspecific biodiversity levels of the giant kelp (Macrocystis pyrifera) at global scales. Sci Rep 2023; 13:12046. [PMID: 37491385 PMCID: PMC10368654 DOI: 10.1038/s41598-023-38944-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Accepted: 07/17/2023] [Indexed: 07/27/2023] Open
Abstract
The paradigm of past climate-driven range shifts structuring the distribution of marine intraspecific biodiversity lacks replication in biological models exposed to comparable limiting conditions in independent regions. This may lead to confounding effects unlinked to climate drivers. We aim to fill in this gap by asking whether the global distribution of intraspecific biodiversity of giant kelp (Macrocystis pyrifera) is explained by past climate changes occurring across the two hemispheres. We compared the species' population genetic diversity and structure inferred with microsatellite markers, with range shifts and long-term refugial regions predicted with species distribution modelling (SDM) from the last glacial maximum (LGM) to the present. The broad antitropical distribution of Macrocystis pyrifera is composed by six significantly differentiated genetic groups, for which current genetic diversity levels match the expectations of past climate changes. Range shifts from the LGM to the present structured low latitude refugial regions where genetic relics with higher and unique diversity were found (particularly in the Channel Islands of California and in Peru), while post-glacial expansions following ~ 40% range contraction explained extensive regions with homogenous reduced diversity. The estimated effect of past climate-driven range shifts was comparable between hemispheres, largely demonstrating that the distribution of intraspecific marine biodiversity can be structured by comparable evolutionary forces across the global ocean. Additionally, the differentiation and endemicity of regional genetic groups, confers high conservation value to these localized intraspecific biodiversity hotspots of giant kelp forests.
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Affiliation(s)
- Jorge Assis
- CCMAR, CIMAR, Universidade do Algarve, Gambelas, Faro, Portugal.
- Faculty of Bioscience and Aquaculture, Nord Universitet, Bodø, Norway.
| | - Filipe Alberto
- Department of Biological Sciences, University of Wisconsin, Milwaukee, USA
| | - Erasmo C Macaya
- Centro Fondap IDEAL and Departamento de Oceanografía, Universidad de Concepción, Concepción, Chile
| | - Nelson Castilho Coelho
- CCMAR, CIMAR, Universidade do Algarve, Gambelas, Faro, Portugal
- University of Pittsburgh School of Medicine, Pittsburgh, USA
| | - Sylvain Faugeron
- Núcleo Milenio MASH and IRL3614 Evolutionary Biology and Ecology of Algae, Facultad de Ciencias Biológicas, CNRS, Sorbonne Université, Universidad Austral de Chile, Pontificia Universidad Catolica de Chile, Santiago, Chile
| | | | - Lydia Ladah
- Departamento de Oceanografía Biológica, Centro de Investigación Científica y de Educación Superior de Ensenada, Ensenada, Baja California, Mexico
| | - Daniel C Reed
- Marine Science Institute, University of California Santa Barbara, Santa Barbara, USA
| | | | - Andrés Mansilla
- Cape Horn International Center (CHIC), Universidad de Magallanes, Punta Arenas, Chile
| | - Paul Brickle
- South Atlantic Environmental Research Institute, Stanley, Falkland Islands
| | - Giuseppe C Zuccarello
- School of Biological Sciences, Victoria University of Wellington, Wellington, New Zealand
| | - Ester A Serrão
- CCMAR, CIMAR, Universidade do Algarve, Gambelas, Faro, Portugal
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Wang Z, Zeng C, Cao L. Mapping the biodiversity conservation gaps in the East China sea. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 336:117667. [PMID: 36878059 DOI: 10.1016/j.jenvman.2023.117667] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 01/30/2023] [Accepted: 03/02/2023] [Indexed: 06/18/2023]
Abstract
Being one of the most productive China seas, the East China Sea is facing the challenge of unprecedented biodiversity loss and habitat degradation under the dual pressure of anthropogenic disturbance and climate change. Although marine protected areas (MPAs) are considered an effective conservation tool, it remains unclear whether existing MPAs adequately protect marine biodiversity. To investigate this issue, we first constructed a maximum entropy model to predict the distributions of 359 threatened species and identified its species richness hotspots in the East China Sea. Then we identified priority conservation areas (PCAs1) under different protection scenarios. Since the actual conservation in the East China Sea is far from the goals proposed by Convention on Biological Diversity, we calculated a more realistic conservation goal by quantifying the relationship between the percentage of protected areas in the East China Sea and the average proportion of habitats covered for all species. Finally, we mapped conservation gaps by comparing the PCAs under the proposed goal and existing MPAs. Our results showed that these threatened species were very heterogeneously distributed, and their abundance was highest at low latitudes and in nearshore areas. The identified PCAs were distributed mainly in nearshore areas, especially in the Yangtze River estuary and along the Taiwan Strait. Based on the current distribution of threatened species, we suggest a minimum conservation goal of 20.4% of the total area of the East China Sea. Only 8.8% of the recommended PCAs are currently within the existing MPAs. We recommend expanding the MPAs in six areas to achieve the minimum conservation target. Our findings provide a solid scientific reference and a reasonable short-term target for China to realize the vision of protecting 30% of its oceans by 2030.
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Affiliation(s)
- Zihan Wang
- School of Oceanography, Shanghai Jiao Tong University, Shanghai, 200030, China.
| | - Cong Zeng
- School of Oceanography, Shanghai Jiao Tong University, Shanghai, 200030, China.
| | - Ling Cao
- School of Oceanography, Shanghai Jiao Tong University, Shanghai, 200030, China.
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Bereza D, Grey E, Shenkar N. Prioritizing management of high-risk routes and ports by vessel type to improve marine biosecurity efforts. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 336:117597. [PMID: 36878062 DOI: 10.1016/j.jenvman.2023.117597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 02/19/2023] [Accepted: 02/24/2023] [Indexed: 06/18/2023]
Abstract
The shipping industry constitutes the main vector of marine bioinvasions. Over 90,000 vessels world-wide create a highly complex shipping network that requires appropriate management tools. Here we characterized a novel vessel category, Ultra Large Container Vessels (ULCV), in terms of potential contribution to the dispersal of Non-Indigenous Species (NIS) in comparison to smaller vessels traveling similar routes. Such approach is essential for providing precise information-based risk analysis necessary to enforce biosecurity regulations and reduce the adverse global effects of marine NIS. We used Automatic Identification System (AIS) based websites to extract shipping data that will enable us to test for differences in two vessel behaviors linked to NIS dispersal: port visit durations and voyage sailing times. We then examined the geographic spread of ULCVs and small vessels, quantifying the accumulation of new port visits, countries, and ecoregions for each vessel category. Finally, Higher Order Network (HON) analysis revealed emergent patterns within shipping traffic, species flow, and invasion risk networks of these two categories. Compared to the smaller vessels, ULCVs spent significantly longer time in 20% of the ports and were more geographically constrained, with fewer port visits, countries, and regions. HON analysis revealed that the ULCV shipping species flow and invasion risk networks were more similar to each other than to those of the smaller vessels. However, HON port importance shifts were discernible for both vessel categories, with major shipping hubs not necessarily being major invasion hubs. Overall, compared to smaller vessels, ULCVs behave differently in ways that potentially increase biofouling risk, albeit in a smaller set of ports. Future studies using HON analysis of other dispersal vectors appears critical for prioritizing management of high-risk routes and ports.
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Affiliation(s)
- Doron Bereza
- School of Zoology, George S. Wise Faculty of Life Sciences, Tel-Aviv University, Tel Aviv, Israel
| | - Erin Grey
- School of Biology and Ecology and Maine Center for Genetics in the Environment, University of Maine, Orono, ME, USA
| | - Noa Shenkar
- School of Zoology, George S. Wise Faculty of Life Sciences, Tel-Aviv University, Tel Aviv, Israel; The Steinhardt Museum of Natural History and Israel National Center for Biodiversity Studies, Tel-Aviv University, Tel Aviv, Israel.
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30
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Costello MJ. Exceptional endemicity of Aotearoa New Zealand biota shows how taxa dispersal traits, but not phylogeny, correlate with global species richness. J R Soc N Z 2023; 54:144-159. [PMID: 39439475 PMCID: PMC11459800 DOI: 10.1080/03036758.2023.2198722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Accepted: 03/13/2023] [Indexed: 10/25/2024]
Abstract
Species' with more limited dispersal and consequently less gene flow are more likely to form new spatially segregated species and thus contribute disproportionally to endemic biota and global species richness. Aotearoa New Zealand has exceptional endemicity, with 52% of its 54,000 named species endemic, including 32%, 39% and 68% for freshwater, marine and terrestrial environments respectively. The lower endemicity of freshwater biota (excluding insects) is attributed to their need to disperse between habitats that are temporary on evolutionary timescales. The percent endemicity of higher taxa (Order to Kingdom), a measure of phylogenetic relationships, was not correlated with regional and global species richness. However, there was a positive correlation between endemicity and species richness across dispersal trait groups based on their environment, typical body size, mobility (including flight), and if marine, whether pelagic or benthic. Typically flighted taxa had high endemicity contrary to the dispersal-endemicity hypothesis, but reflecting exceptional isolation by distance and time, and reduced flight ability as occurs on islands. It is proposed that the high richness and endemicity of mobile macrofauna is caused by a combination of niche specialisation opportunities and predation limiting dispersal respectively. Thus, dispersal traits better predicted endemicity and global species richness than phylogeny.
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Wang Z, Kacimi A, Xu H, Du M. Global Impacts of a Bilateral Trade Policy on Ballast Water-Mediated Species Spread Risk: A Case Study of Sino-US Trade. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2023; 57:5275-5283. [PMID: 36940433 DOI: 10.1021/acs.est.2c09119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
A trade policy could generate both economic and environmental impacts. This work is focused on the impacts of a bilateral trade policy on ballast water-mediated nonindigenous species (NIS) spread risk. Taking the hypothetical Sino-US trade restriction as an example, we integrate a computable general equilibrium model and a higher-order NIS spread risk assessment model to examine the impacts of bilateral trade policy on both the economy and NIS spread risks. We have two important findings. First, the Sino-US trade restriction would cause decreases in NIS spread risks to China and the US, as well as to three quarters of worldwide countries/regions. However, the rest one fourth would experience increased NIS spread risks. Second, the relationship between changes in exports and changes in NIS spread risks might not be directly proportional. This is observed with 46% of countries and regions that would see their exports increase but their NIS spread risks drop, with positive impacts on both their economies and environment under the Sino-US trade restriction. These results reveal both broader global impacts as well as the decoupled economic and ecological impacts of a bilateral trade policy. These broader impacts demonstrate the necessity for national governments, which are parties to bilateral agreements to give due consideration to the economic and environmental impacts on countries and regions outside of the agreement.
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Affiliation(s)
- Zhaojun Wang
- Smithsonian Environmental Research Center, 647 Contees Wharf Rd, Edgewater, Maryland 21037, United States
| | - Adel Kacimi
- Marine and Coastal Ecosystems Laboratory, Department of Marine and Coastal Environment, National Higher School of Marine Sciences and Coastal Management, 16320 Algiers, Algeria
| | - Hailian Xu
- State Key Joint Laboratory of ESPC, School of Environment, Tsinghua University, 100084 Beijing, China
| | - Mingxi Du
- School of Public Policy and Administration, Xi'an Jiaotong University, Xi'an 710049, China
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Roving Diver Survey as a Rapid and Cost-Effective Methodology to Register Species Richness in Sub-Antarctic Kelp Forests. DIVERSITY 2023. [DOI: 10.3390/d15030354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
Abstract
Underwater sampling needs to strike a balance between time-efficient and standardized data that allow comparison with different areas and times. The roving diver survey involves divers meandering and actively searching for species and has been useful for producing fish species lists but has seldom been implemented for benthic taxa. In this study, we used this non-destructive technique to register species associated with kelp forests at the sub-Antarctic Bécasses Island (Beagle Channel, Argentina), detecting numerous species while providing the first multi-taxa inventory for the area, including macroalgae, invertebrates, and fish, with supporting photographs of each observation hosted on the citizen science platform iNaturalist. This research established a timely and cost-effective methodology for surveys with scuba diving in cold waters, promoting the obtention of new records, data sharing, and transparency of the taxonomic curation. Overall, 160 taxa were found, including 41 not reported previously for this area and three records of southernmost distribution. Other studies in nearby areas with extensive sampling efforts arrived at similar richness estimations. Our findings reveal that the roving diver survey using photographs is a good approach for creating inventories of marine species, which will serve for a better understanding of underwater biodiversity and future long-term monitoring to assess the health of kelp environments.
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Gaurisas DY, Bernardino AF. Benthic biogeographic patterns on the deep Brazilian margin. PeerJ 2023; 11:e14585. [PMID: 36874960 PMCID: PMC9979832 DOI: 10.7717/peerj.14585] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Accepted: 11/28/2022] [Indexed: 03/02/2023] Open
Abstract
The Brazilian continental margin (BCM) extends from the Tropical to the Subtropical Atlantic Ocean, with much of its seafloor within deep waters, supporting rich geomorphological features and under wide productivity gradients. Deep-sea biogeographic boundaries on the BCM have been limited to studies that used water mass and salinity properties of deep-water masses, partly as a result of historical under sampling and a lack of consolidation of available biological and ecological datasets. The aim of this study was to consolidate benthic assemblage datasets and test current oceanographic biogeographical deep-sea boundaries (200-5,000 m) using available faunal distributions. We retrieved over 4,000 benthic data records from open-access databases and used cluster analysis to examine assemblage distributions against the deep-sea biogeographical classification scheme from Watling et al. (2013). Starting from the assumption that vertical and horizontal distribution patterns can vary regionally, we test other schemes incorporating latitudinal and water masses stratification within the Brazilian margin. As expected, the classification scheme based on benthic biodiversity is in overall agreement with the general boundaries proposed by Watling et al. (2013). However, our analysis allowed much refinement in the former boundaries, and here we propose the use of two biogeographic realms, two provinces and seven bathyal ecoregions (200-3,500 m), and three abyssal provinces (>3,500 m) along the BCM. The main driver for these units seems to be latitudinal gradients as well as water mass characteristics such as temperature. Our study provides a significant improvement of benthic biogeographic ranges along the Brazilian continental margin allowing a more detailed recognition of its biodiversity and ecological value, and also supports the needed spatial management for industrial activities occurring in its deep waters.
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Affiliation(s)
- Daniela Y. Gaurisas
- Departamento de Oceanografia e Ecologia, Universidade Federal do Espírito Santo, Vitória, Espírito Santo, Brazil
| | - Angelo F. Bernardino
- Departamento de Oceanografia e Ecologia, Universidade Federal do Espírito Santo, Vitória, Espírito Santo, Brazil
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Zhao Q, Huang H, Costello MJ, Chu J. Climate change projections show shrinking deep-water ecosystems with implications for biodiversity and aquaculture in the Northwest Pacific. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 861:160505. [PMID: 36470391 DOI: 10.1016/j.scitotenv.2022.160505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Revised: 10/14/2022] [Accepted: 11/22/2022] [Indexed: 06/17/2023]
Abstract
The increased availability of environmental data with depth deriving from remote-sensing-based datasets permits more comprehensive modelling of the distribution of marine ecosystems in space and time. This research tests the potential of such objective modelling of marine ecosystems in four dimensions, spatial and temporal, to provide projections of how climate change may affect biodiversity, including aquaculture. This approach could be replicated for any regional seas. The Bohai Sea, Yellow Sea, and East China Sea (BYECS) are marginal seas in the Northwest Pacific bounded by China, Korea, and Japan. Despite providing important ecological and economic services, their ecological conditions and ecosystems distribution have not yet been systematically mapped. This analysis used 13 marine environmental variables, measured on a three-dimensional and monthly basis during 1993-2019, to classify and map the BYECS region by k-means clustering using cosine similarity as distance function. There were 13 distinct areas identified that fit the definition of "ecosystems" that is, enduring regions demarcated by environmental characteristics. Of these 13 ecosystems, the Yellow Sea Cold Water (YSCW) Ecosystem is significant in relation to seasonal species composition and the newly developing deep-sea salmon caging aquaculture in the region. Projections of the potential size of this water mass under various climate-change scenarios based on analysis using the Non-Parametric Probabilistic Ecological Niche (NPPEN) model show that its volume may decrease 31 %-66 % in the future. Such a decrease would have impacts on the seasonal species' abundances in the BYECS marginal sea region and threaten the deep-sea cold-water salmon farming.
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Affiliation(s)
- Qianshuo Zhao
- College of Marine Life Science, Ocean University of China, Shandong, Qingdao 266003, China.
| | - Huimin Huang
- College of Marine Life Science, Ocean University of China, Shandong, Qingdao 266003, China
| | - Mark John Costello
- College of Marine Life Science, Ocean University of China, Shandong, Qingdao 266003, China; Faculty of Biosciences and Aquaculture, Nord University, Bobo 8049, Norway
| | - Jiansong Chu
- College of Marine Life Science, Ocean University of China, Shandong, Qingdao 266003, China
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Sobczyk R, Serigstad B, Pabis K. High polychaete diversity in the Gulf of Guinea (West African continental margin): The influence of local and intermediate scale ecological factors on a background of regional patterns. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 859:160046. [PMID: 36356769 DOI: 10.1016/j.scitotenv.2022.160046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 11/03/2022] [Accepted: 11/04/2022] [Indexed: 06/16/2023]
Abstract
The Tropical East Atlantic is one of the least studied areas in the world's oceans, and thus a blank spot on the map of marine studies. Shaped by dynamic currents and shifting water masses, it is a key region in discussions about marine ecology, biodiversity, and zoogeography, while facing numerous, poorly understood, and unmonitored threats associated with climate change, acidification, and pollution. Polychaete diversity was assessed along four transects along the Ghana coast, from shallow to deep bottoms and distributed along the whole upwelling marine ecoregion. Despite high sampling effort, steep species accumulation curves demonstrated the necessity of further sampling in the region. We observed zonation of fauna by depth, and a decrease in species richness from 25 m to 1000 m depth. Polychaete communities were influenced by sediment type, presence of oxygen minimum zones, and local disturbances caused by elevated barium concentrations. Similar evenness along the depth gradient reflected the importance of rare species in the community structure. Differences in phylogenetic diversity, as reflected by taxonomic distinctness, were small, which suggested high ecosystem stability. The highly variable species richness at small scale (meters) showed the importance of ecological factors giving rise to microhabitat diversity, although we also noticed intermediate scale (50-300 km) differences affecting community structure. About 44 % of the species were rare (i.e. recorded only in three or fewer samples), highlighting the level of patchiness, while one fifth was distributed on all transects, therefore along the whole upwelling ecoregion, demonstrating the influence of the regional species pool on local communities at particular stations. Our study yielded 253 species, increasing the number of polychaetes known from this region by at least 50 %. This casts doubt on previous findings regarding Atlantic bioregionalization, biodiversity estimates and endemism, which appear to have been more pronouncedly affected by sampling bias than previously thought.
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Affiliation(s)
- Robert Sobczyk
- Department of Invertebrates Zoology and Hydrobiology, University of Lodz, Lodz, Poland.
| | - Bjorn Serigstad
- Center for Development Cooperation in Fisheries, Institute of Marine Research, Bergen, Norway
| | - Krzysztof Pabis
- Department of Invertebrates Zoology and Hydrobiology, University of Lodz, Lodz, Poland
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HADIYANTO HADIYANTO, GLASBY CHRISTOPHERJ. Nereididae (Annelida: Phyllodocida) from intertidal macroalgae in Western Australia. Zootaxa 2023; 5239:151-203. [PMID: 37045103 DOI: 10.11646/zootaxa.5239.2.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Indexed: 02/10/2023]
Abstract
The last extensive exploration of Nereididae diversity within coastal waters of Western Australia was done in 1975–1984. We collected Nereididae associated with macroalgae from 38 rocky intertidal shores of Western Australia (18°S to 34°S). Eighteen species belonging to seven genera are described and illustrated. Two new species, Nereis edentata n. sp. and Nereis yuedensis n. sp., were found. Nereis edentata n. sp. differs from other Nereis species having one row of paragnaths on Areas VII–VIII and smooth notopodial homogomph falcigers in posterior chaetigers. Nereis yuedensis n. sp. differs from other Nereis species having one row of paragnaths on Areas VII–VIII and notopodial homogomph falcigers with at least one large lateral tooth, and also species having notopodial homogomph falcigers starting from chaetiger 3. The distribution of N. yuedensis n. sp. was found to be restricted within temperate Australia and N. edentata n. sp. appears to be transitional between temperate and tropical regions. Also, we remove from synonymy the probable Western Australian endemic species, Pseudonereis rottnestiana (Augener, 1913), and provide a key to all known genera and species of Nereididae from Western Australian waters.
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Photographic Checklist, DNA Barcoding, and New Species of Sea Slugs and Snails from the Faafu Atoll, Maldives (Gastropoda: Heterobranchia and Vetigastropoda). DIVERSITY 2023. [DOI: 10.3390/d15020219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Baseline biodiversity data are key for ecological and evolutionary studies and are especially relevant for areas such as the Maldivian Archipelago in the Indian Ocean, which can act as a stepping-stone for the transport of widely distributed marine species. We surveyed the islands and reefs of the Faafu and Malé Atolls with snorkeling and scuba diving, collecting the two gastropod subclasses, Heterobranchia and Vetigastropoda. Our inventory comprises 104 species photographed alive to create an identification guide. We also provide COI barcodes for most species, adding novel sequence data for the Maldivian malacofauna. Half of our species represent new records for the Maldives, emphasizing how much diversity remains to be discovered. Species distributions reflect ecological rarity, with almost 60% of taxa only found in one site. We also compiled a comprehensive checklist of heterobranchs and vetigastropods of the Maldives based on literature records, resulting in 320 species, which, together with barcoding data, indicate several potential cryptic species in the Indo-Pacific. Six new species are described, the nudibranchs Limenandra evanescenti n. sp., Eubranchus putnami n. sp., Sakuraeolis marhe n. sp., Moridilla maldivensis n. sp., Tergiposacca perspicua n. sp., and the sacoglossan Costasiella fridae n. sp.
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Historical Biogeography of Earwigs. BIOLOGY 2022; 11:biology11121794. [PMID: 36552303 PMCID: PMC9775502 DOI: 10.3390/biology11121794] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Revised: 12/05/2022] [Accepted: 12/08/2022] [Indexed: 12/14/2022]
Abstract
The Dermaptera are an insect order exhibiting their highest diversity in the tropical areas of the southern hemisphere. This pattern has been considered a reflection of a Gondwanan origin. However, this hypothesis has not been tested through analytical methods. In this paper, the world distribution of earwigs was analysed by using the 'Cladistic Analysis of Distributions and Endemism' (CADE), a method which groups areas of endemism on the basis of shared distributions and phylogenetic relationships among taxa. In addition, clustering techniques were applied to depict biotic relationships based on similarity indices. Results of CADE support the idea that Gondwanan fragmentation exerted a crucial role in shaping the current distribution of the main clades of earwigs. However, the relationships between India with South East Asia suggested a biotic interchange occurred after the Indian collision with the Eurasian plate. The overall scenario emerging from cluster analyses revealed a strong influence of dispersal events. Overall, the distribution of earwig major clades indicates that their biogeographical history was mainly characterized by vicariance events (led by the break-up of Gondwana) followed by large scale dispersal processes constrained by the Himalayan orogenesis and the presence of colder temperatures, which have largely hampered the colonization of the northern hemisphere.
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Seascape genomics of common dolphins (Delphinus delphis) reveals adaptive diversity linked to regional and local oceanography. BMC Ecol Evol 2022; 22:88. [PMID: 35818031 PMCID: PMC9275043 DOI: 10.1186/s12862-022-02038-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Accepted: 06/14/2022] [Indexed: 11/10/2022] Open
Abstract
Abstract
Background
High levels of standing genomic variation in wide-ranging marine species may enhance prospects for their long-term persistence. Patterns of connectivity and adaptation in such species are often thought to be influenced by spatial factors, environmental heterogeneity, and oceanographic and geomorphological features. Population-level studies that analytically integrate genome-wide data with environmental information (i.e., seascape genomics) have the potential to inform the spatial distribution of adaptive diversity in wide-ranging marine species, such as many marine mammals. We assessed genotype-environment associations (GEAs) in 214 common dolphins (Delphinus delphis) along > 3000 km of the southern coast of Australia.
Results
We identified 747 candidate adaptive SNPs out of a filtered panel of 17,327 SNPs, and five putatively locally-adapted populations with high levels of standing genomic variation were disclosed along environmentally heterogeneous coasts. Current velocity, sea surface temperature, salinity, and primary productivity were the key environmental variables associated with genomic variation. These environmental variables are in turn related to three main oceanographic phenomena that are likely affecting the dispersal of common dolphins: (1) regional oceanographic circulation, (2) localised and seasonal upwellings, and (3) seasonal on-shelf circulation in protected coastal habitats. Signals of selection at exonic gene regions suggest that adaptive divergence is related to important metabolic traits.
Conclusion
To the best of our knowledge, this represents the first seascape genomics study for common dolphins (genus Delphinus). Information from the associations between populations and their environment can assist population management in forecasting the adaptive capacity of common dolphins to climate change and other anthropogenic impacts.
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Onoufriou AB, Gaggiotti OE, Aguilar de Soto N, McCarthy ML, Morin PA, Rosso M, Dalebout M, Davison N, Baird RW, Baker CS, Berrow S, Brownlow A, Burns D, Caurant F, Claridge D, Constantine R, Demaret F, Dreyer S, Ðuras M, Durban JW, Frantzis A, Freitas L, Genty G, Galov A, Hansen SS, Kitchener AC, Martin V, Mignucci-Giannoni AA, Montano V, Moulins A, Olavarría C, Poole MM, Reyes Suárez C, Rogan E, Ryan C, Schiavi A, Tepsich P, Urban R. J, West K, Olsen MT, Carroll EL. Biogeography in the deep: Hierarchical population genomic structure of two beaked whale species. Glob Ecol Conserv 2022. [DOI: 10.1016/j.gecco.2022.e02308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
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MesopTroph, a database of trophic parameters to study interactions in mesopelagic food webs. Sci Data 2022; 9:716. [PMID: 36411285 PMCID: PMC9678877 DOI: 10.1038/s41597-022-01831-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Accepted: 11/09/2022] [Indexed: 11/22/2022] Open
Abstract
Mesopelagic organisms play a crucial role in marine food webs, channelling energy across the predator-prey network and connecting depth strata through their diel vertical migrations. The information available to assess mesopelagic feeding interactions and energy transfer has increased substantially in recent years, owing to the growing interest and research activity in the mesopelagic realm. However, such data have not been systematically collated and are difficult to access, hampering estimation of the contribution of mesopelagic organisms to marine ecosystems. Here we present MesopTroph, a georeferenced database of diet, trophic markers, and energy content of mesopelagic and other marine taxa compiled from 203 published and non-published sources. MesopTroph currently includes data on stomach contents, carbon and nitrogen stable isotopes, major and trace elements, energy density, fatty acids, trophic positions, and diet proportion estimates for 498 species/genera. MesopTroph will be expanded with new data emerging from ongoing studies. MesopTroph provides a unique tool to investigate trophic interactions and energy flow mediated by mesopelagic organisms, and to evaluate the ecosystem services of this community.
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Brown SC, Mellin C, García Molinos J, Lorenzen ED, Fordham DA. Faster ocean warming threatens richest areas of marine biodiversity. GLOBAL CHANGE BIOLOGY 2022; 28:5849-5858. [PMID: 35795987 PMCID: PMC9544294 DOI: 10.1111/gcb.16328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 06/23/2022] [Accepted: 06/26/2022] [Indexed: 06/15/2023]
Abstract
The vulnerability of marine biodiversity to accelerated rates of climatic change is poorly understood. By developing a new method for identifying extreme oceanic warming events during Earth's most recent deglaciation, and comparing these to 21st century projections, we show that future rates of ocean warming will disproportionately affect the most speciose marine communities, potentially threatening biodiversity in more than 70% of current-day global hotspots of marine species richness. The persistence of these richest areas of marine biodiversity will require many species to move well beyond the biogeographic realm where they are endemic, at rates of redistribution not previously seen. Our approach for quantifying exposure of biodiversity to past and future rates of oceanic warming provides new context and scalable information for deriving and strengthening conservation actions to safeguard marine biodiversity under climate change.
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Affiliation(s)
- Stuart C. Brown
- School of Biological SciencesUniversity of AdelaideAdelaideSouth AustraliaAustralia
- Globe Institute, University of CopenhagenCopenhagenDenmark
| | - Camille Mellin
- School of Biological SciencesUniversity of AdelaideAdelaideSouth AustraliaAustralia
| | - Jorge García Molinos
- Arctic Research CenterHokkaido UniversitySapporoJapan
- Graduate School of Environmental ScienceHokkaido UniversitySapporoJapan
| | | | - Damien A. Fordham
- School of Biological SciencesUniversity of AdelaideAdelaideSouth AustraliaAustralia
- Globe Institute, University of CopenhagenCopenhagenDenmark
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Kantor Y, Hallan A, Criscione F. Integrative taxonomy reveals new Australian species of the deep-water snail genera Comispira (Conoidea: Cochlespiridae) and Leucosyrinx (Conoidea: Pseudomelatomidae). MOLLUSCAN RESEARCH 2022. [DOI: 10.1080/13235818.2022.2102887] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Affiliation(s)
- Yuri Kantor
- A.N. Severtsov Institute of Ecology and Evolution of Russian Academy of Sciences, Moscow, Russia
| | - Anders Hallan
- Australian Museum Research Institute, Sydney, Australia
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Busch K, Slaby BM, Bach W, Boetius A, Clefsen I, Colaço A, Creemers M, Cristobo J, Federwisch L, Franke A, Gavriilidou A, Hethke A, Kenchington E, Mienis F, Mills S, Riesgo A, Ríos P, Roberts EM, Sipkema D, Pita L, Schupp PJ, Xavier J, Rapp HT, Hentschel U. Biodiversity, environmental drivers, and sustainability of the global deep-sea sponge microbiome. Nat Commun 2022; 13:5160. [PMID: 36056000 PMCID: PMC9440067 DOI: 10.1038/s41467-022-32684-4] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2021] [Accepted: 08/11/2022] [Indexed: 11/09/2022] Open
Abstract
In the deep ocean symbioses between microbes and invertebrates are emerging as key drivers of ecosystem health and services. We present a large-scale analysis of microbial diversity in deep-sea sponges (Porifera) from scales of sponge individuals to ocean basins, covering 52 locations, 1077 host individuals translating into 169 sponge species (including understudied glass sponges), and 469 reference samples, collected anew during 21 ship-based expeditions. We demonstrate the impacts of the sponge microbial abundance status, geographic distance, sponge phylogeny, and the physical-biogeochemical environment as drivers of microbiome composition, in descending order of relevance. Our study further discloses that fundamental concepts of sponge microbiology apply robustly to sponges from the deep-sea across distances of >10,000 km. Deep-sea sponge microbiomes are less complex, yet more heterogeneous, than their shallow-water counterparts. Our analysis underscores the uniqueness of each deep-sea sponge ground based on which we provide critical knowledge for conservation of these vulnerable ecosystems. This study presents a large-scale analysis of microbial diversity in deep-sea sponges. They show that sponge microbial abundance status, geographic distance, sponge phylogeny and the physical-biogeochemical environment drive microbiome composition, in descending order of relevance. The uniqueness of each deep-sea sponge ground stresses the need for their strategic preservation.
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Affiliation(s)
- Kathrin Busch
- GEOMAR Helmholtz Centre for Ocean Research Kiel, Düsternbrooker Weg 20, 24105, Kiel, Germany.
| | - Beate M Slaby
- GEOMAR Helmholtz Centre for Ocean Research Kiel, Düsternbrooker Weg 20, 24105, Kiel, Germany
| | - Wolfgang Bach
- MARUM-Center for Marine Environmental Sciences and Department of Geosciences, University of Bremen, 28359, Bremen, Germany
| | - Antje Boetius
- MARUM-Center for Marine Environmental Sciences and Department of Geosciences, University of Bremen, 28359, Bremen, Germany.,MPI-Max Planck Institute for Marine Microbiology, Celsiusstr. 1, 28359, Bremen, Germany.,AWI-Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research, Am Handelshafen 12, 27570, Bremerhaven, Germany
| | - Ina Clefsen
- GEOMAR Helmholtz Centre for Ocean Research Kiel, Düsternbrooker Weg 20, 24105, Kiel, Germany
| | - Ana Colaço
- OKEANOS-Institute of Marine Research, University of the Açores, Rua Prof Frederico Machado, 9901-862, Horta, Portugal
| | - Marie Creemers
- OKEANOS-Institute of Marine Research, University of the Açores, Rua Prof Frederico Machado, 9901-862, Horta, Portugal.,MARBEC, University of Montpellier, CNRS, IFREMER, IRD, Avenue Jean Monnet, CS 30171 - 34203, Sète, France
| | - Javier Cristobo
- IEO-CSIC-Spanish Oceanographic Institute, Oceanographic Centre Gijón, Avda. Principe de Asturias 70 bis, 33212, Gijón, Spain
| | - Luisa Federwisch
- AWI-Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research, Am Handelshafen 12, 27570, Bremerhaven, Germany.,University of Bremen, Faculty 2 Biology/Chemistry, Leobener Str., 28359, Bremen, Germany
| | - Andre Franke
- IKMB-Institute of Clinical Molecular Biology, Rosalind-Franklin-Straße 12, 24105, Kiel, Germany
| | - Asimenia Gavriilidou
- Wageningen University, Laboratory of Microbiology, Stippeneng 4, 6708WE, Wageningen, the Netherlands
| | - Andrea Hethke
- GEOMAR Helmholtz Centre for Ocean Research Kiel, Düsternbrooker Weg 20, 24105, Kiel, Germany
| | - Ellen Kenchington
- DFO-Department of Fisheries and Oceans, Bedford Institute of Oceanography, P.O. Box 1006, 1 Challenger Dr., B2Y 4A2, Dartmouth, NS, Canada
| | - Furu Mienis
- NIOZ-Royal Netherlands Institute for Sea Research, 1790 AB, Den Burg, Texel, the Netherlands
| | - Sadie Mills
- NIWA-National Institute of Water and Atmospheric Research, 301 Evans Bay Parade Hataitai, Wellington, New Zealand
| | - Ana Riesgo
- MNCN-National Museum of Natural Sciences, Department of Biodiversity and Evolutionary Biology, c/José Gutiérrez Abascal 2, 28006, Madrid, Spain.,NHM-Natural History Museum of London, Department of Life Sciences, Cromwell Road, SW7 5BD, London, UK
| | - Pilar Ríos
- IEO-CSIC-Spanish Oceanographic Institute, Oceanographic Centre Gijón, Avda. Principe de Asturias 70 bis, 33212, Gijón, Spain
| | - Emyr Martyn Roberts
- University of Bergen, Department of Biological Sciences and K.G. Jebsen Centre for Deep Sea Research, PO Box 7803, 5020, Bergen, Norway.,Bangor University, School of Ocean Sciences, Menai Bridge, LL59 5AB, Anglesey, UK
| | - Detmer Sipkema
- Wageningen University, Laboratory of Microbiology, Stippeneng 4, 6708WE, Wageningen, the Netherlands
| | - Lucía Pita
- GEOMAR Helmholtz Centre for Ocean Research Kiel, Düsternbrooker Weg 20, 24105, Kiel, Germany.,ICM-CSIC-Institute of Marine Sciences, Passeig de la Barceloneta 37-49, 08003, Barcelona, Spain
| | - Peter J Schupp
- ICBM-Institute for Chemistry and Biology of the Marine Environment, University of Oldenburg, Schleusenstraße 1, 26382, Wilhelmshaven, Germany.,HIFMB-Helmholtz Institute for Functional Marine Biodiversity, University of Oldenburg, Ammerländer Heerstraße 231, 26129, Oldenburg, Germany
| | - Joana Xavier
- University of Bergen, Department of Biological Sciences and K.G. Jebsen Centre for Deep Sea Research, PO Box 7803, 5020, Bergen, Norway.,CIIMAR-Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Avenida General Norton de Matos, S/N, 4450-208, Matosinhos, Portugal
| | - Hans Tore Rapp
- University of Bergen, Department of Biological Sciences and K.G. Jebsen Centre for Deep Sea Research, PO Box 7803, 5020, Bergen, Norway
| | - Ute Hentschel
- GEOMAR Helmholtz Centre for Ocean Research Kiel, Düsternbrooker Weg 20, 24105, Kiel, Germany. .,University of Kiel, Christian-Albrechts-Platz 4, 24118, Kiel, Germany.
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Andrzejaczek S, Lucas TC, Goodman MC, Hussey NE, Armstrong AJ, Carlisle A, Coffey DM, Gleiss AC, Huveneers C, Jacoby DMP, Meekan MG, Mourier J, Peel LR, Abrantes K, Afonso AS, Ajemian MJ, Anderson BN, Anderson SD, Araujo G, Armstrong AO, Bach P, Barnett A, Bennett MB, Bezerra NA, Bonfil R, Boustany AM, Bowlby HD, Branco I, Braun CD, Brooks EJ, Brown J, Burke PJ, Butcher P, Castleton M, Chapple TK, Chateau O, Clarke M, Coelho R, Cortes E, Couturier LIE, Cowley PD, Croll DA, Cuevas JM, Curtis TH, Dagorn L, Dale JJ, Daly R, Dewar H, Doherty PD, Domingo A, Dove ADM, Drew M, Dudgeon CL, Duffy CAJ, Elliott RG, Ellis JR, Erdmann MV, Farrugia TJ, Ferreira LC, Ferretti F, Filmalter JD, Finucci B, Fischer C, Fitzpatrick R, Forget F, Forsberg K, Francis MP, Franks BR, Gallagher AJ, Galvan-Magana F, García ML, Gaston TF, Gillanders BM, Gollock MJ, Green JR, Green S, Griffiths CA, Hammerschlag N, Hasan A, Hawkes LA, Hazin F, Heard M, Hearn A, Hedges KJ, Henderson SM, Holdsworth J, Holland KN, Howey LA, Hueter RE, Humphries NE, Hutchinson M, Jaine FRA, Jorgensen SJ, Kanive PE, Labaja J, Lana FO, Lassauce H, Lipscombe RS, Llewellyn F, Macena BCL, et alAndrzejaczek S, Lucas TC, Goodman MC, Hussey NE, Armstrong AJ, Carlisle A, Coffey DM, Gleiss AC, Huveneers C, Jacoby DMP, Meekan MG, Mourier J, Peel LR, Abrantes K, Afonso AS, Ajemian MJ, Anderson BN, Anderson SD, Araujo G, Armstrong AO, Bach P, Barnett A, Bennett MB, Bezerra NA, Bonfil R, Boustany AM, Bowlby HD, Branco I, Braun CD, Brooks EJ, Brown J, Burke PJ, Butcher P, Castleton M, Chapple TK, Chateau O, Clarke M, Coelho R, Cortes E, Couturier LIE, Cowley PD, Croll DA, Cuevas JM, Curtis TH, Dagorn L, Dale JJ, Daly R, Dewar H, Doherty PD, Domingo A, Dove ADM, Drew M, Dudgeon CL, Duffy CAJ, Elliott RG, Ellis JR, Erdmann MV, Farrugia TJ, Ferreira LC, Ferretti F, Filmalter JD, Finucci B, Fischer C, Fitzpatrick R, Forget F, Forsberg K, Francis MP, Franks BR, Gallagher AJ, Galvan-Magana F, García ML, Gaston TF, Gillanders BM, Gollock MJ, Green JR, Green S, Griffiths CA, Hammerschlag N, Hasan A, Hawkes LA, Hazin F, Heard M, Hearn A, Hedges KJ, Henderson SM, Holdsworth J, Holland KN, Howey LA, Hueter RE, Humphries NE, Hutchinson M, Jaine FRA, Jorgensen SJ, Kanive PE, Labaja J, Lana FO, Lassauce H, Lipscombe RS, Llewellyn F, Macena BCL, Mambrasar R, McAllister JD, McCully Phillips SR, McGregor F, McMillan MN, McNaughton LM, Mendonça SA, Meyer CG, Meyers M, Mohan JA, Montgomery JC, Mucientes G, Musyl MK, Nasby-Lucas N, Natanson LJ, O’Sullivan JB, Oliveira P, Papastamtiou YP, Patterson TA, Pierce SJ, Queiroz N, Radford CA, Richardson AJ, Richardson AJ, Righton D, Rohner CA, Royer MA, Saunders RA, Schaber M, Schallert RJ, Scholl MC, Seitz AC, Semmens JM, Setyawan E, Shea BD, Shidqi RA, Shillinger GL, Shipley ON, Shivji MS, Sianipar AB, Silva JF, Sims DW, Skomal GB, Sousa LL, Southall EJ, Spaet JLY, Stehfest KM, Stevens G, Stewart JD, Sulikowski JA, Syakurachman I, Thorrold SR, Thums M, Tickler D, Tolloti MT, Townsend KA, Travassos P, Tyminski JP, Vaudo JJ, Veras D, Wantiez L, Weber SB, Wells RD, Weng KC, Wetherbee BM, Williamson JE, Witt MJ, Wright S, Zilliacus K, Block BA, Curnick DJ. Diving into the vertical dimension of elasmobranch movement ecology. SCIENCE ADVANCES 2022; 8:eabo1754. [PMID: 35984887 PMCID: PMC9390984 DOI: 10.1126/sciadv.abo1754] [Show More Authors] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Accepted: 07/07/2022] [Indexed: 06/15/2023]
Abstract
Knowledge of the three-dimensional movement patterns of elasmobranchs is vital to understand their ecological roles and exposure to anthropogenic pressures. To date, comparative studies among species at global scales have mostly focused on horizontal movements. Our study addresses the knowledge gap of vertical movements by compiling the first global synthesis of vertical habitat use by elasmobranchs from data obtained by deployment of 989 biotelemetry tags on 38 elasmobranch species. Elasmobranchs displayed high intra- and interspecific variability in vertical movement patterns. Substantial vertical overlap was observed for many epipelagic elasmobranchs, indicating an increased likelihood to display spatial overlap, biologically interact, and share similar risk to anthropogenic threats that vary on a vertical gradient. We highlight the critical next steps toward incorporating vertical movement into global management and monitoring strategies for elasmobranchs, emphasizing the need to address geographic and taxonomic biases in deployments and to concurrently consider both horizontal and vertical movements.
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Affiliation(s)
| | - Tim C.D. Lucas
- Department of Health Sciences, University of Leicester, Leicester, UK
| | | | - Nigel E. Hussey
- Department of Integrative Biology, University of Windsor, Windsor, ON, Canada
| | - Amelia J. Armstrong
- School of Biomedical Sciences, The University of Queensland, St Lucia, QLD, Australia
| | - Aaron Carlisle
- School of Marine Science and Policy, University of Delaware, Lewes, DE, USA
| | - Daniel M. Coffey
- Harte Research Institute for Gulf of Mexico Studies, Texas A&M University-Corpus Christi, Corpus Christi, TX, USA
| | - Adrian C. Gleiss
- Centre for Sustainable Aquatic Ecosystems, Harry Butler Institute, Murdoch University, Murdoch, WA, Australia
- Environmental and Conservation Sciences, Murdoch University, Murdoch, WA, Australia
| | - Charlie Huveneers
- Southern Shark Ecology Group, College of Science and Engineering, Flinders University, Adelaide, SA, Australia
| | - David M. P. Jacoby
- Lancaster Environment Centre, Lancaster University, Lancaster, UK
- Zoological Society of London, London, UK
| | - Mark G. Meekan
- Australian Institute of Marine Science, Indian Ocean Marine Research Centre, Crawley, WA, Australia
| | - Johann Mourier
- School of Natural Sciences, Macquarie University, Sydney, NSW, Australia
- UMS 3514 Plateforme Marine Stella Mare, Université de Corse Pasquale Paoli, Biguglia, France
| | - Lauren R. Peel
- The Manta Trust, Catemwood House, Corscombe, Dorset, UK
- Save Our Seas Foundation–D’Arros Research Centre, Geneva, Switzerland
| | - Kátya Abrantes
- College of Science and Engineering, James Cook University, Townsville, QLD, Australia
- Biopixel Oceans Foundation, Cairns, QLD, Australia
| | - André S. Afonso
- Marine and Environmental Sciences Centre, Department of Life Sciences, University of Coimbra, Coimbra, Portugal
- Departamento de Pesca e Aquicultura, Universidade Federal Rural de Pernambuco, Recife, PE, Brazil
| | - Matthew J. Ajemian
- Harbor Branch Oceanographic Institute, Florida Atlantic University, Fort Pierce, FL, USA
| | - Brooke N. Anderson
- New College of Interdisciplinary Arts and Sciences, Arizona State University, Phoenix, AZ, USA
| | | | - Gonzalo Araujo
- Environmental Science Program, Department of Biological and Environmental Sciences, College of Arts and Sciences, Qatar University, Doha, Qatar
- Marine Research and Conservation Foundation, Lydeard St Lawrence, Somerset, UK
| | - Asia O. Armstrong
- School of Biomedical Sciences, The University of Queensland, St Lucia, QLD, Australia
| | - Pascal Bach
- MARBEC, University of Montpellier, CNRS, Ifremer, IRD, Sète, France
| | - Adam Barnett
- College of Science and Engineering, James Cook University, Townsville, QLD, Australia
- Biopixel Oceans Foundation, Cairns, QLD, Australia
| | - Mike B. Bennett
- School of Biomedical Sciences, The University of Queensland, St Lucia, QLD, Australia
| | - Natalia A. Bezerra
- Departamento de Pesca e Aquicultura, Universidade Federal Rural de Pernambuco, Recife, PE, Brazil
- Departamento de Oceanografia e Ecologia, Universidade Federal do Espirito Santo, Vitória, ES, Brazil
| | - Ramon Bonfil
- El Colegio de la Frontera Sur (ECOSUR)–Unidad Chetumal, Chetumal, Quintana Roo, Mexico
- Océanos Vivientes A.C., Mexico City, Mexico
| | - Andre M. Boustany
- Monterey Bay Aquarium, Monterey, CA, USA
- Nicholas School of the Environment, Duke University, Durham, NC, USA
| | - Heather D. Bowlby
- Fisheries and Oceans Canada, Bedford Institute of Oceanography, Dartmouth, NS, Canada
| | - Ilka Branco
- Departamento de Pesca e Aquicultura, Universidade Federal Rural de Pernambuco, Recife, PE, Brazil
| | - Camrin D. Braun
- Biology Department, Woods Hole Oceanographic Institution, Woods Hole, MA, USA
| | | | - Judith Brown
- Ascension Island Government Conservation and Fisheries Department, Georgetown, Ascension Island, UK
| | - Patrick J. Burke
- School of Natural Sciences, Macquarie University, Sydney, NSW, Australia
| | - Paul Butcher
- NSW Department of Primary Industries–Fisheries Research, National Marine Science Centre, Coffs Harbour, NSW, Australia
| | | | - Taylor K. Chapple
- Coastal Oregon Marine Experiment Station, Oregon State University, Newport, OR, USA
| | - Olivier Chateau
- Laboratory of Marine Biology and Ecology, Aquarium des Lagons, Nouméa, New Caledonia
| | | | - Rui Coelho
- Portuguese Institute for the Ocean and Atmosphere, I.P. (IPMA), Olhão, Algarve, Portugal
- Centre of Marine Sciences of the Algarve, Universidade do Algarve, Faro, Algarve, Portugal
| | - Enric Cortes
- Southeast Fisheries Science Center, NOAA Fisheries, Panama City, FL, USA
| | | | - Paul D. Cowley
- South African Institute for Aquatic Biodiversity, Makhanda, South Africa
| | - Donald A. Croll
- Department of Ecology and Evolutionary Biology, University of California, Santa Cruz, Santa Cruz, CA, USA
| | - Juan M. Cuevas
- Wildlife Conservation Society Argentina, Ciudad Autónoma de Buenos Aires, Argentina
- División Zoología de Vertebrados, Museo de La Plata, Universidad Nacional de la Plata, La Plata, Buenos Aires, Argentina
| | - Tobey H. Curtis
- Atlantic Highly Migratory Species Management Division, NOAA Fisheries, Gloucester, MA, USA
| | - Laurent Dagorn
- MARBEC, University of Montpellier, CNRS, Ifremer, IRD, Sète, France
| | - Jonathan J. Dale
- Hopkins Marine Station, Stanford University, Pacific Grove, CA, USA
| | - Ryan Daly
- South African Institute for Aquatic Biodiversity, Makhanda, South Africa
- Oceanographic Research Institute, Durban, South Africa
| | - Heidi Dewar
- Southwest Fisheries Science Center, NOAA Fisheries, La Jolla, CA, USA
| | - Philip D. Doherty
- Environment and Sustainability Institute, University of Exeter, Penryn, Cornwall, UK
- Centre for Ecology and Conservation, College of Life and Environmental Sciences, University of Exeter, Penryn, Cornwall, UK
| | - Andrés Domingo
- Laboratorio de Recursos Pelágicos, Dirección Nacional de Recursos Acuáticos (DINARA), Montevideo, Uruguay
| | | | - Michael Drew
- Southern Shark Ecology Group, College of Science and Engineering, Flinders University, Adelaide, SA, Australia
- SARDI Aquatic Sciences, Adelaide, SA, Australia
| | - Christine L. Dudgeon
- School of Biomedical Sciences, The University of Queensland, St Lucia, QLD, Australia
- School of Science, Technology and Engineering, The University of the Sunshine Coast, Maroochydore, QLD, Australia
| | | | - Riley G. Elliott
- Institute of Marine Science, The University of Auckland, Auckland, New Zealand
| | - Jim R. Ellis
- Centre for Environment, Fisheries and Aquaculture Science, Lowestoft, Suffolk, UK
| | | | - Thomas J. Farrugia
- College of Fisheries and Ocean Sciences, University of Alaska Fairbanks, Fairbanks, AK, USA
- Alaska Ocean Observing System, Anchorage, AK, USA
| | - Luciana C. Ferreira
- Australian Institute of Marine Science, Indian Ocean Marine Research Centre, Crawley, WA, Australia
| | - Francesco Ferretti
- Department of Fish and Wildlife Conservation, Virginia Tech, Blacksburg, VA, USA
| | - John D. Filmalter
- South African Institute for Aquatic Biodiversity, Makhanda, South Africa
| | - Brittany Finucci
- National Institute of Water and Atmospheric Research (NIWA), Wellington, New Zealand
| | | | - Richard Fitzpatrick
- Biopixel Oceans Foundation, Cairns, QLD, Australia
- College of Science and Engineering, James Cook University, Cairns, QLD, Australia
| | - Fabien Forget
- MARBEC, University of Montpellier, CNRS, Ifremer, IRD, Sète, France
| | | | - Malcolm P. Francis
- National Institute of Water and Atmospheric Research (NIWA), Wellington, New Zealand
| | - Bryan R. Franks
- Marine Science Research Institute, Jacksonville University, Jacksonville, FL, USA
| | | | - Felipe Galvan-Magana
- Instituto Politecnico Nacional, Centro Interdisciplinario de Ciencias Marinas, La Paz, Baja California Sur, Mexico
| | - Mirta L. García
- Museo de La Plata, Universidad Nacional de la Plata, La Plata, Buenos Aires, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas, Buenos Aires, Argentina
| | - Troy F. Gaston
- College of Engineering, Science and Environment, University of Newcastle, Ourimbah, NSW, Australia
| | - Bronwyn M. Gillanders
- Southern Seas Ecology Laboratories, School of Biological Sciences, University of Adelaide, Adelaide, SA, Australia
| | | | - Jonathan R. Green
- Galapagos Whale Shark Project, Puerto Ayora, Santa Cruz Island, Galapagos, Ecuador
| | - Sofia Green
- Galapagos Whale Shark Project, Puerto Ayora, Santa Cruz Island, Galapagos, Ecuador
| | - Christopher A. Griffiths
- Centre for Environment, Fisheries and Aquaculture Science, Lowestoft, Suffolk, UK
- Ecology and Evolutionary Biology, School of Biosciences, University of Sheffield, Sheffield, UK
- Swedish University of Agricultural Sciences, Department of Aquatic Resources, Institute of Marine Research, Lysekil, Sweden
| | - Neil Hammerschlag
- Rosenstiel School of Marine and Atmospheric Science, University of Miami, Miami, FL, USA
| | - Abdi Hasan
- Yayasan Konservasi Indonesia, Sorong, West Papua, Indonesia
| | - Lucy A. Hawkes
- College of Life and Environmental Science, Hatherly Laboratories, University of Exeter, Exeter, Devon, UK
| | - Fabio Hazin
- Departamento de Pesca e Aquicultura, Universidade Federal Rural de Pernambuco, Recife, PE, Brazil
| | - Matthew Heard
- Southern Shark Ecology Group, College of Science and Engineering, Flinders University, Adelaide, SA, Australia
- SARDI Aquatic Sciences, Adelaide, SA, Australia
- Conservation and Wildlife Branch, Department for Environment and Water, Adelaide, SA, Australia
| | - Alex Hearn
- Migramar, Forest Knolls, CA, USA
- Galapagos Whale Shark Project, Puerto Ayora, Santa Cruz Island, Galapagos, Ecuador
- Galapagos Science Center, Department of Biological Sciences, Universidad San Francisco de Quito, Quito, Ecuador
| | | | | | | | - Kim N. Holland
- Hawaii Institute of Marine Biology, University of Hawaii at Manoa, Kaneohe, HI, USA
| | - Lucy A. Howey
- Johns Hopkins University, Baltimore, MD, USA
- Haiti Ocean Project, Petite Riviere de Nippes, Haiti
| | - Robert E. Hueter
- OCEARCH, Park City, UT, USA
- Mote Marine Laboratory, Sarasota, FL, USA
| | | | - Melanie Hutchinson
- Hawaii Institute of Marine Biology, University of Hawaii at Manoa, Kaneohe, HI, USA
- Joint Institute for Marine and Atmospheric Research, Honolulu, HI, USA
| | - Fabrice R. A. Jaine
- School of Natural Sciences, Macquarie University, Sydney, NSW, Australia
- Sydney Institute of Marine Science, Mosman, NSW, Australia
| | - Salvador J. Jorgensen
- Institute of Marine Sciences, University of California, Santa Cruz, Santa Cruz, CA, USA
| | - Paul E. Kanive
- Department of Ecology, Montana State University, Bozeman, MT, USA
| | - Jessica Labaja
- Large Marine Vertebrates Research Institute Philippines, Jagna, Bohol, Philippines
| | - Fernanda O. Lana
- Departamento de Pesca e Aquicultura, Universidade Federal Rural de Pernambuco, Recife, PE, Brazil
| | - Hugo Lassauce
- The Manta Trust, Catemwood House, Corscombe, Dorset, UK
- ISEA, University of New Caledonia, Nouméa, New Caledonia
- Conservation International New Caledonia, Nouméa, New Caledonia
| | - Rebecca S. Lipscombe
- National Marine Science Centre, Southern Cross University, Coffs Harbour, NSW, Australia
| | | | - Bruno C. L. Macena
- Departamento de Pesca e Aquicultura, Universidade Federal Rural de Pernambuco, Recife, PE, Brazil
- Okeanos Centre, University of the Azores, Horta, Faial, Portugal
| | | | - Jaime D. McAllister
- Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, TAS, Australia
| | | | | | - Matthew N. McMillan
- Southern Seas Ecology Laboratories, School of Biological Sciences, University of Adelaide, Adelaide, SA, Australia
- Queensland Department of Agriculture and Fisheries, Brisbane, QLD, Australia
| | | | - Sibele A. Mendonça
- Departamento de Pesca e Aquicultura, Universidade Federal Rural de Pernambuco, Recife, PE, Brazil
| | - Carl G. Meyer
- Hawaii Institute of Marine Biology, University of Hawaii at Manoa, Kaneohe, HI, USA
| | - Megan Meyers
- Australian Institute of Marine Science, Indian Ocean Marine Research Centre, Crawley, WA, Australia
| | - John A. Mohan
- School of Marine and Environmental Programs, University of New England, Biddeford, ME, USA
| | - John C. Montgomery
- Institute of Marine Science, The University of Auckland, Auckland, New Zealand
| | - Gonzalo Mucientes
- Instituto de Investigacions Marinas, Consejo Superior de Investigaciones Científicas, Vigo, Galicia, Spain
- CIBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, InBIO Laboratório Associado, Universidade do Porto, Vairao, Portugal
| | | | - Nicole Nasby-Lucas
- Southwest Fisheries Science Center, NOAA Fisheries, La Jolla, CA, USA
- Institute of Marine Sciences, University of California, Santa Cruz, Santa Cruz, CA, USA
| | | | | | - Paulo Oliveira
- Departamento de Pesca e Aquicultura, Universidade Federal Rural de Pernambuco, Recife, PE, Brazil
| | - Yannis P. Papastamtiou
- Institute of the Environment, Department of Biological Science, Florida International University, North Miami, FL, USA
| | | | | | - Nuno Queiroz
- CIBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, InBIO Laboratório Associado, Universidade do Porto, Vairao, Portugal
- BIOPOLIS Program in Genomics, Biodiversity and Land Planning, Vairao, Portugal
| | - Craig A. Radford
- Institute of Marine Science, The University of Auckland, Auckland, New Zealand
| | - Andy J. Richardson
- Ascension Island Government Conservation and Fisheries Department, Georgetown, Ascension Island, UK
| | - Anthony J. Richardson
- School of Mathematics and Physics, The University of Queensland, St Lucia, QLD, Australia
- CSIRO Oceans and Atmosphere, St Lucia, QLD, Australia
| | - David Righton
- Centre for Environment, Fisheries and Aquaculture Science, Lowestoft, Suffolk, UK
- School of Environmental Sciences, University of East Anglia, Norwich, UK
| | | | - Mark A. Royer
- Hawaii Institute of Marine Biology, University of Hawaii at Manoa, Kaneohe, HI, USA
| | | | | | | | - Michael C. Scholl
- Bimini Biological Field Station Foundation, Bimini, The Bahamas
- IUCN SSC Shark Specialist Group, Gland, Vaud, Switzerland
- Aquarium-Muséum Universitaire de Liège, University of Liège, Liège, Wallonia, Belgium
| | - Andrew C. Seitz
- College of Fisheries and Ocean Sciences, University of Alaska Fairbanks, Fairbanks, AK, USA
| | - Jayson M. Semmens
- Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, TAS, Australia
| | - Edy Setyawan
- The Manta Trust, Catemwood House, Corscombe, Dorset, UK
- Institute of Marine Science, The University of Auckland, Auckland, New Zealand
| | - Brendan D. Shea
- Department of Fish and Wildlife Conservation, Virginia Tech, Blacksburg, VA, USA
- Beneath the Waves, Herndon, VA, USA
| | - Rafid A. Shidqi
- Coastal Science and Policy Program, University of California, Santa Cruz, Santa Cruz, CA, USA
- Thresher Shark Project Indonesia, Alor Island, East Nusa Tenggara, Indonesia
| | - George L. Shillinger
- Hopkins Marine Station, Stanford University, Pacific Grove, CA, USA
- Migramar, Forest Knolls, CA, USA
- Upwell, Monterey, CA, USA
| | | | - Mahmood S. Shivji
- Guy Harvey Research Institute, Nova Southeastern University, Fort Lauderdale, FL, USA
| | - Abraham B. Sianipar
- Centre for Sustainable Aquatic Ecosystems, Harry Butler Institute, Murdoch University, Murdoch, WA, Australia
| | - Joana F. Silva
- Centre for Environment, Fisheries and Aquaculture Science, Lowestoft, Suffolk, UK
| | - David W. Sims
- The Marine Biological Association, Plymouth, UK
- Ocean and Earth Science, National Oceanography Centre Southampton, University of Southampton, Southampton, UK
| | | | - Lara L. Sousa
- Wildlife Conservation Research Unit, Recanati-Kaplan Centre, Department of Zoology, Oxford University, Oxford, UK
| | | | - Julia L. Y. Spaet
- Evolutionary Ecology Group, Department of Zoology, University of Cambridge, Cambridge, Cambridgeshire, UK
| | | | - Guy Stevens
- The Manta Trust, Catemwood House, Corscombe, Dorset, UK
| | - Joshua D. Stewart
- The Manta Trust, Catemwood House, Corscombe, Dorset, UK
- Marine Mammal Institute, Department of Fisheries, Wildlife, and Conservation Sciences, Hatfield Marine Science Center, Oregon State University, Newport, OR, USA
| | - James A. Sulikowski
- New College of Interdisciplinary Arts and Sciences, Arizona State University, Phoenix, AZ, USA
| | | | - Simon R. Thorrold
- Biology Department, Woods Hole Oceanographic Institution, Woods Hole, MA, USA
| | - Michele Thums
- Australian Institute of Marine Science, Indian Ocean Marine Research Centre, Crawley, WA, Australia
| | - David Tickler
- Marine Futures Lab, School of Biological Science, The University of Western Australia, Crawley, WA, Australia
| | | | - Kathy A. Townsend
- School of Science, Technology and Engineering, The University of the Sunshine Coast, Hervey Bay, QLD, Australia
| | - Paulo Travassos
- Departamento de Pesca e Aquicultura, Universidade Federal Rural de Pernambuco, Recife, PE, Brazil
| | - John P. Tyminski
- OCEARCH, Park City, UT, USA
- Mote Marine Laboratory, Sarasota, FL, USA
| | - Jeremy J. Vaudo
- Guy Harvey Research Institute, Nova Southeastern University, Fort Lauderdale, FL, USA
| | - Drausio Veras
- Unidade Acadêmica de Serra Talhada, Universidade Federal Rural de Pernambuco, Serra Talhada, PE, Brazil
| | | | - Sam B. Weber
- Ascension Island Government Conservation and Fisheries Department, Georgetown, Ascension Island, UK
- Centre for Ecology and Conservation, College of Life and Environmental Sciences, University of Exeter, Penryn, Cornwall, UK
| | - R.J. David Wells
- Department of Marine Biology, Texas A&M University at Galveston, Galveston, TX, USA
| | - Kevin C. Weng
- Fisheries Science, Virginia Institute of Marine Science, College of William and Mary, Gloucester Point, VA, USA
| | - Bradley M. Wetherbee
- Guy Harvey Research Institute, Nova Southeastern University, Fort Lauderdale, FL, USA
- University of Rhode Island, Kingston, RI, USA
| | - Jane E. Williamson
- School of Natural Sciences, Macquarie University, Sydney, NSW, Australia
| | - Matthew J. Witt
- Environment and Sustainability Institute, University of Exeter, Penryn, Cornwall, UK
- College of Life and Environmental Science, Hatherly Laboratories, University of Exeter, Exeter, Devon, UK
| | - Serena Wright
- Centre for Environment, Fisheries and Aquaculture Science, Lowestoft, Suffolk, UK
| | - Kelly Zilliacus
- Department of Ecology and Evolutionary Biology, University of California, Santa Cruz, Santa Cruz, CA, USA
| | - Barbara A. Block
- Hopkins Marine Station, Stanford University, Pacific Grove, CA, USA
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46
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Kopperud BT, Lidgard S, Liow LH. Enhancing georeferenced biodiversity inventories: automated information extraction from literature records reveal the gaps. PeerJ 2022; 10:e13921. [PMID: 35999848 PMCID: PMC9393005 DOI: 10.7717/peerj.13921] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Accepted: 07/29/2022] [Indexed: 01/19/2023] Open
Abstract
We use natural language processing (NLP) to retrieve location data for cheilostome bryozoan species (text-mined occurrences (TMO)) in an automated procedure. We compare these results with data combined from two major public databases (DB): the Ocean Biodiversity Information System (OBIS), and the Global Biodiversity Information Facility (GBIF). Using DB and TMO data separately and in combination, we present latitudinal species richness curves using standard estimators (Chao2 and the Jackknife) and range-through approaches. Our combined DB and TMO species richness curves quantitatively document a bimodal global latitudinal diversity gradient for extant cheilostomes for the first time, with peaks in the temperate zones. A total of 79% of the georeferenced species we retrieved from TMO (N = 1,408) and DB (N = 4,549) are non-overlapping. Despite clear indications that global location data compiled for cheilostomes should be improved with concerted effort, our study supports the view that many marine latitudinal species richness patterns deviate from the canonical latitudinal diversity gradient (LDG). Moreover, combining online biodiversity databases with automated information retrieval from the published literature is a promising avenue for expanding taxon-location datasets.
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Affiliation(s)
- Bjørn Tore Kopperud
- Natural History Museum, University of Oslo, Oslo, Norway,GeoBio-Center, Ludwig-Maximilians-Universität München, München, Germany,Department of Earth and Environmental Sciences, Ludwig-Maximilians-Universität München, München, Germany
| | - Scott Lidgard
- Negaunee Integrative Research Center, Field Museum of Natural History, Chicago, Illinois, U.S.A.
| | - Lee Hsiang Liow
- Natural History Museum, University of Oslo, Oslo, Norway,Centre for Ecological and Evolutionary Synthesis, University of Oslo, Oslo, Norway
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Ingeman KE, Zhao LZ, Wolf C, Williams DR, Ritger AL, Ripple WJ, Kopecky KL, Dillon EM, DiFiore BP, Curtis JS, Csik SR, Bui A, Stier AC. Glimmers of hope in large carnivore recoveries. Sci Rep 2022; 12:10005. [PMID: 35864129 PMCID: PMC9304400 DOI: 10.1038/s41598-022-13671-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Accepted: 05/05/2022] [Indexed: 11/09/2022] Open
Abstract
In the face of an accelerating extinction crisis, scientists must draw insights from successful conservation interventions to uncover promising strategies for reversing broader declines. Here, we synthesize cases of recovery from a list of 362 species of large carnivores, ecologically important species that function as terminal consumers in many ecological contexts. Large carnivores represent critical conservation targets that have experienced historical declines as a result of direct exploitation and habitat loss. We examine taxonomic and geographic variation in current extinction risk and recovery indices, identify conservation actions associated with positive outcomes, and reveal anthropogenic threats linked to ongoing declines. We find that fewer than 10% of global large carnivore populations are increasing, and only 12 species (3.3%) have experienced genuine improvement in extinction risk, mostly limited to recoveries among marine mammals. Recovery is associated with species legislation enacted at national and international levels, and with management of direct exploitation. Conversely, ongoing declines are robustly linked to threats that include habitat modification and human conflict. Applying lessons from cases of large carnivore recovery will be crucial for restoring intact ecosystems and maintaining the services they provide to humans.
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Affiliation(s)
- Kurt E Ingeman
- Department of Ecology, Evolution, and Marine Biology, University of California, 2018 Noble Hall, Santa Barbara, CA, 93106, USA. .,David H. Smith Conservation Research Program, Society for Conservation Biology, Washington, DC, USA.
| | - Lily Z Zhao
- Department of Ecology, Evolution, and Marine Biology, University of California, 2018 Noble Hall, Santa Barbara, CA, 93106, USA
| | - Christopher Wolf
- Global Trophic Cascades Program, Forest Ecosystems and Society, Oregon State University, Corvallis, OR, USA
| | - David R Williams
- School of Earth and Environment, University of Leeds, Leeds, UK.,Bren School of Environmental Science and Management, University of California, Santa Barbara, CA, USA
| | - Amelia L Ritger
- Department of Ecology, Evolution, and Marine Biology, University of California, 2018 Noble Hall, Santa Barbara, CA, 93106, USA
| | - William J Ripple
- Global Trophic Cascades Program, Forest Ecosystems and Society, Oregon State University, Corvallis, OR, USA
| | - Kai L Kopecky
- Department of Ecology, Evolution, and Marine Biology, University of California, 2018 Noble Hall, Santa Barbara, CA, 93106, USA
| | - Erin M Dillon
- Department of Ecology, Evolution, and Marine Biology, University of California, 2018 Noble Hall, Santa Barbara, CA, 93106, USA
| | - Bartholomew P DiFiore
- Department of Ecology, Evolution, and Marine Biology, University of California, 2018 Noble Hall, Santa Barbara, CA, 93106, USA
| | - Joseph S Curtis
- Department of Ecology, Evolution, and Marine Biology, University of California, 2018 Noble Hall, Santa Barbara, CA, 93106, USA
| | - Samantha R Csik
- Department of Ecology, Evolution, and Marine Biology, University of California, 2018 Noble Hall, Santa Barbara, CA, 93106, USA
| | - An Bui
- Department of Ecology, Evolution, and Marine Biology, University of California, 2018 Noble Hall, Santa Barbara, CA, 93106, USA
| | - Adrian C Stier
- Department of Ecology, Evolution, and Marine Biology, University of California, 2018 Noble Hall, Santa Barbara, CA, 93106, USA.
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48
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Biogeography of the coastal fishes of the Socotra Archipelago: Challenging current ecoregional concepts. PLoS One 2022; 17:e0267086. [PMID: 35486578 PMCID: PMC9053782 DOI: 10.1371/journal.pone.0267086] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Accepted: 04/03/2022] [Indexed: 11/19/2022] Open
Abstract
The Socotra Archipelago, located in the eastern Gulf of Aden, has a unique marine environment, which combines tropical and ‘pseudo-temperate’ elements. An updated species inventory recently considered its coastal fish diversity the highest among Arabian ecoregions, necessitating to re-assess the ichthyogeographic position of the island group. The main aim of this study is to describe the distributional biogeography of its coastal fish fauna in relation to contemporary ichthyogeographic and ecoregional concepts. Inferences are drawn with regard to the marine biogeographic arrangement and ecoregional partitioning of the Arabian region. The main datasets comprise eight and twenty selected families including 404 and 898 species, respectively, from Arabian ecoregions. The Socotra Archipelago has close affinities to a putative ecoregion in the eastern Gulf of Aden that extends to southern Oman. It is more closely related to the Arabian Sea coast of Oman than to ecoregions in the Red Sea and a putative ecoregion in the western Gulf of Aden. The Gulf of Aden does not represent a consistent ecoregion in ichthyogeographic terms, because its eastern and western parts are less closely related to one another than to other ecoregions. The Socotra Archipelago and the eastern Gulf of Aden should therefore not be assigned to a joined province with Red Sea ecoregions. The coastal fish faunas of the southern Red Sea have close affinities with those of the western Gulf of Aden. The Arabian/Persian Gulf is least related to the other Arabian ecoregions. The authors posit the Socotra Archipelago as a distinct ecoregion, either on its own or in combination with affiliated mainland areas. This best reflects the ichthyogeographic data and the exceptionally high levels of fish and overall marine diversity. Two alternative ecoregional delineations are proposed, serving as working hypotheses for onward research.
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Dlugosch L, Poehlein A, Wemheuer B, Pfeiffer B, Badewien TH, Daniel R, Simon M. Significance of gene variants for the functional biogeography of the near-surface Atlantic Ocean microbiome. Nat Commun 2022; 13:456. [PMID: 35075131 PMCID: PMC8786918 DOI: 10.1038/s41467-022-28128-8] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Accepted: 01/06/2022] [Indexed: 01/21/2023] Open
Abstract
Microbial communities are major drivers of global elemental cycles in the oceans due to their high abundance and enormous taxonomic and functional diversity. Recent studies assessed microbial taxonomic and functional biogeography in global oceans but microbial functional biogeography remains poorly studied. Here we show that in the near-surface Atlantic and Southern Ocean between 62°S and 47°N microbial communities exhibit distinct taxonomic and functional adaptations to regional environmental conditions. Richness and diversity showed maxima around 40° latitude and intermediate temperatures, especially in functional genes (KEGG-orthologues, KOs) and gene profiles. A cluster analysis yielded three clusters of KOs but five clusters of genes differing in the abundance of genes involved in nutrient and energy acquisition. Gene profiles showed much higher distance-decay rates than KO and taxonomic profiles. Biotic factors were identified as highly influential in explaining the observed patterns in the functional profiles, whereas temperature and biogeographic province mainly explained the observed taxonomic patterns. Our results thus indicate fine-tuned genetic adaptions of microbial communities to regional biotic and environmental conditions in the Atlantic and Southern Ocean. The taxonomic and functional diversity of marine microbial communities are shaped by both environmental and biotic factors. Here, the authors investigate the functional biogeography of epipelagic prokaryotic communities along a 13,000-km transect in the Southern and Atlantic Oceans, showing finely tuned genetic adaptations to regional conditions.
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Affiliation(s)
- Leon Dlugosch
- Institute for Chemistry and Biology of the Marine Environment, University of Oldenburg, Carl von Ossietzky Str. 9-11, D-26129, Oldenburg, Germany
| | - Anja Poehlein
- Department of Genomic and Applied Microbiology and Göttingen Genomics Laboratory, Institute of Microbiology and Genetics, Georg-August University of Göttingen, Grisebachstr. 8, D-37077, Göttingen, Germany
| | - Bernd Wemheuer
- Department of Genomic and Applied Microbiology and Göttingen Genomics Laboratory, Institute of Microbiology and Genetics, Georg-August University of Göttingen, Grisebachstr. 8, D-37077, Göttingen, Germany
| | - Birgit Pfeiffer
- Department of Genomic and Applied Microbiology and Göttingen Genomics Laboratory, Institute of Microbiology and Genetics, Georg-August University of Göttingen, Grisebachstr. 8, D-37077, Göttingen, Germany
| | - Thomas H Badewien
- Institute for Chemistry and Biology of the Marine Environment, University of Oldenburg, Carl von Ossietzky Str. 9-11, D-26129, Oldenburg, Germany
| | - Rolf Daniel
- Department of Genomic and Applied Microbiology and Göttingen Genomics Laboratory, Institute of Microbiology and Genetics, Georg-August University of Göttingen, Grisebachstr. 8, D-37077, Göttingen, Germany
| | - Meinhard Simon
- Institute for Chemistry and Biology of the Marine Environment, University of Oldenburg, Carl von Ossietzky Str. 9-11, D-26129, Oldenburg, Germany. .,Helmholtz Institute for Functional Marine Biodiversity at the University of Oldenburg (HIFMB), Ammerländer Heerstr. 231, D-26129, Oldenburg, Germany.
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50
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Giachini Tosetto E, Bertrand A, Neumann-Leitão S, Nogueira Júnior M. The Amazon River plume, a barrier to animal dispersal in the Western Tropical Atlantic. Sci Rep 2022; 12:537. [PMID: 35017566 PMCID: PMC8752809 DOI: 10.1038/s41598-021-04165-z] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Accepted: 12/03/2021] [Indexed: 11/09/2022] Open
Abstract
The dispersal of marine organisms can be restricted by a set of isolation mechanisms including hard barriers or hydrological features. In the Western Atlantic Ocean, the Amazon River discharge has been shown to act as a biogeographical barrier responsible for the differences in reef fish communities between Caribbean Sea and Northeast Brazil continental shelves. Here, we compare the diversity of all Animalia phyla from biogeographic ecoregions along the Tropical Western Atlantic continental shelf to test the hypothesis that the Amazon River plume spatially structures species diversity. For that, we used beta diversity estimators and multivariate ecological analysis on a database of species occurrence of the whole animal kingdom including 175,477 occurrences of 8,375 species from six ecoregions along the Western Tropical Atlantic. Results of the whole animal kingdom and the richest phyla showed that the Caribbean Sea and Tropical Brazil ecoregions are isolated by the Amazon River Plume, broadening and confirming the hypothesis that it acts as a soft barrier to animal dispersal in the Western Tropical Atlantic. Species sharing is larger northwestwards, in direction of the Caribbean than the opposite direction. Beyond species isolation due to local characteristics such as low salinity and high turbidity, our results suggest the dominant northwestward currents probably play a major role in animal dispersion: it enhances the flux of larvae and other planktonic organisms with reduced mobility from Brazil to Caribbean and hinders their contrary movement. Thus, the Amazon area is a strong barrier for taxa with reduced dispersal capacity, while species of pelagic taxa with active swimming may transpose it more easily.
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Affiliation(s)
- Everton Giachini Tosetto
- Departamento de Oceanografia, Universidade Federal de Pernambuco, Recife, PE, 50670-901, Brazil. .,Institut de Recherche pour le Développement, MARBEC, Université Montpellier, CNRS, IFREMER, IRD, 34200, Sète, France.
| | - Arnaud Bertrand
- Departamento de Oceanografia, Universidade Federal de Pernambuco, Recife, PE, 50670-901, Brazil.,Institut de Recherche pour le Développement, MARBEC, Université Montpellier, CNRS, IFREMER, IRD, 34200, Sète, France.,Departamento de Pesca e Aquicultura, Universidade Federal Rural de Pernambuco, Recife, PE, 52171-900, Brazil
| | - Sigrid Neumann-Leitão
- Departamento de Oceanografia, Universidade Federal de Pernambuco, Recife, PE, 50670-901, Brazil
| | - Miodeli Nogueira Júnior
- Departamento de Sistemática e Ecologia, Universidade Federal da Paraíba, João Pessoa, PB, 58051-900, Brazil
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