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Teichert N, Tabouret H, Lizé A, Daverat F, Acou A, Trancart T, Virag LS, Pécheyran C, Feunteun E, Carpentier A. Quantifying larval dispersal portfolio in seabass nurseries using otolith chemical signatures. MARINE ENVIRONMENTAL RESEARCH 2024; 196:106426. [PMID: 38442591 DOI: 10.1016/j.marenvres.2024.106426] [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: 02/01/2024] [Revised: 02/26/2024] [Accepted: 02/26/2024] [Indexed: 03/07/2024]
Abstract
The temporal asynchronies in larvae production from different spawning areas are fundamental components for ensuring stability and resilience of marine metapopulations. Such a concept, named portfolio effect, supposes that diversifying larval dispersal histories should minimize the risk of recruitment failure by increasing the probability that at least some larvae successfully settle in nursery. Here, we used a reconstructive approach based on otolith chemistry to quantify the larval dispersal portfolio of the European seabass, Dicentrarchus labrax, across six estuarine nursery areas of the northeast Atlantic Ocean. The analysis of natal and trajectory signatures indicated that larvae hatch in distinct environments and then dispersed in water masses featured by contrasting chemical signatures. While some trace elements appeared affected by temporal changes (Mn and Sr), others varied spatially during the larval stage but remained poorly affected by temporal fluctuation and fish physiology (Ba, Cu, Rb and Zn). We then proposed two diversity metrics based on richness and variations of chemical signatures among populations to reflect spatio-temporal diversity in natal origins and larval trajectories (i.e., estimates of dispersal portfolio). Along the French coast, the diversity estimates were maximum in nurseries located at proximity of offshore spawning sites and featured by complex offshore hydrodynamic contexts, such as the Mont St-Michel bay. Finally, our findings indicate that the dispersal portfolio was positively related with the local abundance of seabass juveniles, supporting the assumption that heterogeneity in dispersal history contributes to promote recruitment success in nurseries.
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Affiliation(s)
- Nils Teichert
- UMR 8067 BOREA (MNHN, CNRS, IRD, SU, UCN, UA), Laboratoire de Biologie des Organismes et Ecosystèmes Aquatiques, Paris, France; MNHN, Station Marine de Dinard, CRESCO, 35800, Dinard, France.
| | - Hélène Tabouret
- Université de Pau et des Pays de l'Adour, E2S UPPA, CNRS, IPREM, Pau, France
| | - Anne Lizé
- UMR 8067 BOREA (MNHN, CNRS, IRD, SU, UCN, UA), Laboratoire de Biologie des Organismes et Ecosystèmes Aquatiques, Paris, France; MNHN, Station Marine de Dinard, CRESCO, 35800, Dinard, France; School of Life Sciences, University of Liverpool, L697ZB, Liverpool, UK
| | | | - Anthony Acou
- Centre d'expertise et de données PatriNat (OFB-MNHN-CNRS-IRD), Station marine de Dinard, CRESCO, 35800, Dinard, France; Pôle R&D OFB, INRAE, Institut Agro -UPPA MIAME (MIgrateurs AMphihalins dans leur Environnement), 35000, Rennes, France
| | - Thomas Trancart
- UMR 8067 BOREA (MNHN, CNRS, IRD, SU, UCN, UA), Laboratoire de Biologie des Organismes et Ecosystèmes Aquatiques, Paris, France; MNHN, Station Marine de Dinard, CRESCO, 35800, Dinard, France
| | | | | | - Eric Feunteun
- UMR 8067 BOREA (MNHN, CNRS, IRD, SU, UCN, UA), Laboratoire de Biologie des Organismes et Ecosystèmes Aquatiques, Paris, France; MNHN, Station Marine de Dinard, CRESCO, 35800, Dinard, France; CGEL, EPHE-PSL, 35800, Dinard, France
| | - Alexandre Carpentier
- Université de Rennes, UMR 8067 BOREA (MNHN, CNRS, IRD, SU, UCN, UA) Laboratoire de Biologie des Organismes et Ecosystèmes Aquatiques, Rennes, France
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O'Shaughnessy KA, Knights AM, Hawkins SJ, Hanley ME, Lunt P, Thompson RC, Firth LB. Metrics matter: Multiple diversity metrics at different spatial scales are needed to understand species diversity in urban environments. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 895:164958. [PMID: 37331387 DOI: 10.1016/j.scitotenv.2023.164958] [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: 01/11/2023] [Revised: 06/14/2023] [Accepted: 06/15/2023] [Indexed: 06/20/2023]
Abstract
Worldwide, natural habitats are being replaced by artificial structures due to urbanisation. Planning of such modifications should strive for environmental net gain that benefits biodiversity and ecosystems. Alpha (α) and gamma (γ) diversity are often used to assess 'impact' but are insensitive metrics. We test several diversity measures across two spatial scales to compare species diversity in natural and artificial habitats. We show γ-diversity indicates equivalency in biodiversity between natural and artificial habitats, but natural habitats support greater taxon (α) and functional richness. Within-site β-diversity was also greater in natural habitats, but among-site β-diversity was greater in artificial habitats, contradicting the commonly held view that urban ecosystems are more biologically homogenous than natural ecosystems. This study suggests artificial habitats may in fact provide novel habitat for biodiversity, challenges the applicability of the urban homogenisation concept and highlights a significant limitation of using just α-diversity (i.e., multiple metrics are needed and recommended) for assessing environmental net gain and attaining biodiversity conservation goals.
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Affiliation(s)
- Kathryn A O'Shaughnessy
- School of Geography, Earth and Environmental Science, University of Plymouth, Plymouth, United Kingdom; APEM Ltd, Heaton Mersey, Stockport, United Kingdom.
| | - Antony M Knights
- School of Biological and Marine Sciences, University of Plymouth, Plymouth, United Kingdom.
| | - Stephen J Hawkins
- School of Biological and Marine Sciences, University of Plymouth, Plymouth, United Kingdom; School of Ocean and Earth Science, University of Southampton, National Oceanography Centre Southampton, Southampton, United Kingdom; The Marine Biological Association of the United Kingdom, The Laboratory, Citadel Hill, Plymouth, United Kingdom.
| | - Mick E Hanley
- School of Biological and Marine Sciences, University of Plymouth, Plymouth, United Kingdom.
| | - Paul Lunt
- School of Geography, Earth and Environmental Science, University of Plymouth, Plymouth, United Kingdom.
| | - Richard C Thompson
- School of Biological and Marine Sciences, University of Plymouth, Plymouth, United Kingdom.
| | - Louise B Firth
- School of Biological and Marine Sciences, University of Plymouth, Plymouth, United Kingdom.
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3
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Xu W, Gong Y, Wang L, Yao J, Wang H. Longitudinal multidiversity pattern and the environmental drivers of riparian bird communities along submontane rivers of Changbai Mountains, China. Ecol Evol 2022; 12:e9542. [PMCID: PMC9702571 DOI: 10.1002/ece3.9542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Revised: 11/04/2022] [Accepted: 11/07/2022] [Indexed: 11/29/2022] Open
Affiliation(s)
- Wenyu Xu
- Jilin Engineering Laboratory for Avian Ecology and Conservation Genetics, School of Life Sciences Northeast Normal University Changchun China
- Jilin Key Laboratory of Animal Resource Conservation and Utilization Northeast Normal University Changchun China
| | - Ye Gong
- Jilin Engineering Laboratory for Avian Ecology and Conservation Genetics, School of Life Sciences Northeast Normal University Changchun China
- Jilin Key Laboratory of Animal Resource Conservation and Utilization Northeast Normal University Changchun China
- National Demonstration Center for Biological Experimental Teaching School of Life Sciences Northeast Normal University Changchun China
| | - Lin Wang
- Northeast Institute of Geography and Agroecology Chinese Academy of Sciences Changchun China
| | - Jiyuan Yao
- Animal's Scientific and Technological Institute Agricultural University of Jilin Changchun China
| | - Haitao Wang
- Jilin Engineering Laboratory for Avian Ecology and Conservation Genetics, School of Life Sciences Northeast Normal University Changchun China
- Jilin Key Laboratory of Animal Resource Conservation and Utilization Northeast Normal University Changchun China
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4
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Functional susceptibility of tropical forests to climate change. Nat Ecol Evol 2022; 6:878-889. [PMID: 35577983 DOI: 10.1038/s41559-022-01747-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Accepted: 03/24/2022] [Indexed: 11/08/2022]
Abstract
Tropical forests are some of the most biodiverse ecosystems in the world, yet their functioning is threatened by anthropogenic disturbances and climate change. Global actions to conserve tropical forests could be enhanced by having local knowledge on the forests' functional diversity and functional redundancy as proxies for their capacity to respond to global environmental change. Here we create estimates of plant functional diversity and redundancy across the tropics by combining a dataset of 16 morphological, chemical and photosynthetic plant traits sampled from 2,461 individual trees from 74 sites distributed across four continents together with local climate data for the past half century. Our findings suggest a strong link between climate and functional diversity and redundancy with the three trait groups responding similarly across the tropics and climate gradient. We show that drier tropical forests are overall less functionally diverse than wetter forests and that functional redundancy declines with increasing soil water and vapour pressure deficits. Areas with high functional diversity and high functional redundancy tend to better maintain ecosystem functioning, such as aboveground biomass, after extreme weather events. Our predictions suggest that the lower functional diversity and lower functional redundancy of drier tropical forests, in comparison with wetter forests, may leave them more at risk of shifting towards alternative states in face of further declines in water availability across tropical regions.
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Schalkwyk J, Gaigher R, Pryke JS, Samways MJ. Within‐corridor heterogeneity is more important than corridor design for maintaining butterfly functional and taxonomic diversity. J Appl Ecol 2021. [DOI: 10.1111/1365-2664.14006] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Affiliation(s)
- Julia Schalkwyk
- Department of Conservation Ecology and Entomology Stellenbosch University Matieland South Africa
| | - René Gaigher
- Department of Conservation Ecology and Entomology Stellenbosch University Matieland South Africa
| | - James S. Pryke
- Department of Conservation Ecology and Entomology Stellenbosch University Matieland South Africa
| | - Michael J. Samways
- Department of Conservation Ecology and Entomology Stellenbosch University Matieland South Africa
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Wong MKL, Carmona CP. Including intraspecific trait variability to avoid distortion of functional diversity and ecological inference: Lessons from natural assemblages. Methods Ecol Evol 2021. [DOI: 10.1111/2041-210x.13568] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Affiliation(s)
- Mark K. L. Wong
- Department of Zoology University of Oxford Oxford UK
- Forest Entomology Swiss Federal Research Institute WSL Birmensdorf Switzerland
| | - Carlos P. Carmona
- Institute of Ecology and Earth Sciences University of Tartu Tartu Estonia
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Aguirre-Gutiérrez J, Malhi Y, Lewis SL, Fauset S, Adu-Bredu S, Affum-Baffoe K, Baker TR, Gvozdevaite A, Hubau W, Moore S, Peprah T, Ziemińska K, Phillips OL, Oliveras I. Long-term droughts may drive drier tropical forests towards increased functional, taxonomic and phylogenetic homogeneity. Nat Commun 2020; 11:3346. [PMID: 32620761 PMCID: PMC7335099 DOI: 10.1038/s41467-020-16973-4] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Accepted: 05/29/2020] [Indexed: 11/18/2022] Open
Abstract
Tropical ecosystems adapted to high water availability may be highly impacted by climatic changes that increase soil and atmospheric moisture deficits. Many tropical regions are experiencing significant changes in climatic conditions, which may induce strong shifts in taxonomic, functional and phylogenetic diversity of forest communities. However, it remains unclear if and to what extent tropical forests are shifting in these facets of diversity along climatic gradients in response to climate change. Here, we show that changes in climate affected all three facets of diversity in West Africa in recent decades. Taxonomic and functional diversity increased in wetter forests but tended to decrease in forests with drier climate. Phylogenetic diversity showed a large decrease along a wet-dry climatic gradient. Notably, we find that all three facets of diversity tended to be higher in wetter forests. Drier forests showed functional, taxonomic and phylogenetic homogenization. Understanding how different facets of diversity respond to a changing environment across climatic gradients is essential for effective long-term conservation of tropical forest ecosystems. Different aspects of biodiversity may not necessarily converge in their response to climate change. Here, the authors investigate 25-year shifts in taxonomic, functional and phylogenetic diversity of tropical forests along a spatial climate gradient in West Africa, showing that drier forests are less stable than wetter forests.
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Affiliation(s)
- Jesús Aguirre-Gutiérrez
- Environmental Change Institute, School of Geography and the Environment, University of Oxford, Oxford, UK. .,Biodiversity Dynamics, Naturalis Biodiversity Center, Leiden, The Netherlands.
| | - Yadvinder Malhi
- Environmental Change Institute, School of Geography and the Environment, University of Oxford, Oxford, UK
| | - Simon L Lewis
- Ecology and Global Change, School of Geography, University of Leeds, Leeds, West Yorkshire, UK.,Department of Geography, University College London, London, UK
| | - Sophie Fauset
- School of Geography, Earth and Environmental Science, University of Plymouth, Plymouth, UK
| | - Stephen Adu-Bredu
- CSIR-Forestry Research Institute of Ghana, University Post Office, KNUST, Kumasi, Ghana
| | | | - Timothy R Baker
- Ecology and Global Change, School of Geography, University of Leeds, Leeds, West Yorkshire, UK
| | - Agne Gvozdevaite
- Environmental Change Institute, School of Geography and the Environment, University of Oxford, Oxford, UK
| | - Wannes Hubau
- Ecology and Global Change, School of Geography, University of Leeds, Leeds, West Yorkshire, UK.,Service of Wood Biology, Royal Museum for Central Africa, Tervuren, Belgium
| | - Sam Moore
- Environmental Change Institute, School of Geography and the Environment, University of Oxford, Oxford, UK
| | - Theresa Peprah
- CSIR-Forestry Research Institute of Ghana, University Post Office, KNUST, Kumasi, Ghana
| | - Kasia Ziemińska
- Arnold Arboretum of Harvard University, Boston, MA, USA.,Department of Plant Ecology and Evolution, Uppsala University, Uppsala, Sweden
| | - Oliver L Phillips
- Ecology and Global Change, School of Geography, University of Leeds, Leeds, West Yorkshire, UK
| | - Imma Oliveras
- Environmental Change Institute, School of Geography and the Environment, University of Oxford, Oxford, UK
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Curzon MT, Kern CC, Baker SC, Palik BJ, D'Amato AW. Retention forestry influences understory diversity and functional identity. ECOLOGICAL APPLICATIONS : A PUBLICATION OF THE ECOLOGICAL SOCIETY OF AMERICA 2020; 30:e02097. [PMID: 32078225 DOI: 10.1002/eap.2097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Revised: 12/05/2019] [Accepted: 01/06/2020] [Indexed: 06/10/2023]
Abstract
In recent decades, a paradigm shift in forest management and associated policies has led to greater emphasis on harvest practices that retain mature, overstory trees in forest stands that would otherwise be clear-cut. While it is often assumed that the maintenance of compositional and structural complexity, such as that achieved through retention forestry approaches, will also mitigate negative impacts to functional diversity, empirical evidence of this relationship is sparse. We examined the effects of an aggregated retention system on taxonomic and functional diversity in a regenerating aspen-dominated forest. Sampling was conducted along transects arranged to capture the transition from harvested (regenerating) forest to mature, unharvested forest (both intact forest stands and 0.1 ha retention aggregates). We then assessed the magnitude and distance of edge effects on multiple indices of taxonomic and functional diversity as well as functional identity. Twelve years after harvest, the distance and magnitude of edge effects on functional and taxonomic diversity did not differ between the two unharvested patch sizes (intact vs. aggregate); however, intact forest exhibited greater resistance to edge effects and greater depth of edge influence into harvested areas for some traits compared to aggregates. Analyses relying on functional traits were generally applicable across sites within a highly variable forest type, and our results demonstrate the promise of using functional traits to assess management impacts on plant diversity across a landscape. Aggregates maintained some functional attributes associated with interior forest and influenced adjacent regeneration. However, trends in some traits (i.e., shade tolerance and seed mass), particularly in the seedling layer, suggest aggregates of this size provide primarily edge habitat.
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Affiliation(s)
- Miranda T Curzon
- Department of Natural Resource Ecology and Management, Iowa State University, 2310 Pammel Drive, Ames, Iowa, 50011, USA
| | - Christel C Kern
- Northern Research Station, USDA Forest Service, 5985 Highway K, Rhinelander, Wisconsin, 54501, USA
| | - Susan C Baker
- School of Natural Sciences and ARC Centre for Forest Value, University of Tasmania, Private Bag 55, Hobart, Tasmania, 7001, Australia
| | - Brian J Palik
- Northern Research Station, USDA Forest Service, 1831 Highway 169 East, Grand Rapids, Minnesota, 55744, USA
| | - Anthony W D'Amato
- Rubenstein School of Environment and Natural Resources, University of Vermont, 81 Carrigan Drive, Burlington, Vermont, 05405, USA
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9
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Delgado de la flor YA, Perry KI, Turo KJ, Parker DM, Thompson JL, Gardiner MM. Local and landscape‐scale environmental filters drive the functional diversity and taxonomic composition of spiders across urban greenspaces. J Appl Ecol 2020. [DOI: 10.1111/1365-2664.13636] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
| | - Kayla I. Perry
- Department of Entomology The Ohio State University Columbus OH USA
| | | | | | | | - Mary M. Gardiner
- Department of Entomology The Ohio State University Columbus OH USA
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10
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Host Specificity in Variable Environments. Trends Parasitol 2019; 35:452-465. [PMID: 31047808 DOI: 10.1016/j.pt.2019.04.001] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Revised: 04/02/2019] [Accepted: 04/02/2019] [Indexed: 12/15/2022]
Abstract
Host specificity encompasses the range and diversity of host species that a parasite is capable of infecting and is considered a crucial measure of a parasite's potential to shift hosts and trigger disease emergence. Yet empirical studies rarely consider that regional observations only reflect a parasite's 'realized' host range under particular conditions: the true 'fundamental' range of host specificity is typically not approached. We provide an overview of challenges and directions in modelling host specificity under variable environmental conditions. Combining tractable modelling frameworks with multiple data sources that account for the strong interplay between a parasite's evolutionary history, transmission mode, and environmental filters that shape host-parasite interactions will improve efforts to quantify emerging disease risk in times of global change.
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11
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Lee RH, Guénard B. Choices of sampling method bias functional components estimation and ability to discriminate assembly mechanisms. Methods Ecol Evol 2019. [DOI: 10.1111/2041-210x.13175] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Roger H. Lee
- School of Biological SciencesThe University of Hong Kong Hong Kong SAR
| | - Benoit Guénard
- School of Biological SciencesThe University of Hong Kong Hong Kong SAR
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12
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Kim SW, Blomberg SP, Pandolfi JM. Transcending data gaps: a framework to reduce inferential errors in ecological analyses. Ecol Lett 2018; 21:1200-1210. [PMID: 29797760 DOI: 10.1111/ele.13089] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Revised: 01/30/2018] [Accepted: 04/19/2018] [Indexed: 01/25/2023]
Abstract
The analysis of functional diversity (FD) has gained increasing importance due to its generality and utility in ecology. In particular, patterns in the spatial distribution and temporal change of FD are being used to predict locations and functional groups that are immediately vulnerable to global changes. A major impediment to the accurate measurement of FD is the pervasiveness of missing data in trait datasets. While such prevalent data gaps can engender misleading inferences in FD analyses, we currently lack any practical guide to handle missing data in trait datasets. Here, we identify significant mismatches between true FD and values derived from datasets that contain missing data. We demonstrate that imputing missing data with a phylogeny-informed approach reduces the risk of misinterpretation of FD patterns, and provides baseline information against which central questions in ecology can be evaluated.
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Affiliation(s)
- Sun W Kim
- Australian Research Council Centre of Excellence for Coral Reef Studies, School of Biological Sciences, The University of Queensland, St. Lucia, Qld, 4072, Australia
| | - Simon P Blomberg
- School of Biological Sciences, The University of Queensland, St. Lucia, Qld, 4072, Australia
| | - John M Pandolfi
- Australian Research Council Centre of Excellence for Coral Reef Studies, School of Biological Sciences, The University of Queensland, St. Lucia, Qld, 4072, Australia
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13
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Roth T, Allan E, Pearman PB, Amrhein V. Functional ecology and imperfect detection of species. Methods Ecol Evol 2017. [DOI: 10.1111/2041-210x.12950] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Tobias Roth
- University of BaselZoological Institute Basel Switzerland
- Hintermann & Weber AG Reinach Switzerland
| | - Eric Allan
- University of Bern Institute of Plant Sciences Bern Switzerland
| | - Peter B. Pearman
- Department of Plant Biology and EcologyFaculty of Sciences and TechnologyUniversity of the Basque CountryUPV/EHU Leioa Spain
- IKERBASQUEBasque Foundation for Science Bilbao Spain
| | - Valentin Amrhein
- University of BaselZoological Institute Basel Switzerland
- Swiss Ornithological Institute Sempach Switzerland
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