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Saranholi BH, França FM, Vogler AP, Barlow J, Vaz de Mello FZ, Maldaner ME, Carvalho E, Gestich CC, Howes B, Banks-Leite C, Galetti PM. Testing and optimizing metabarcoding of iDNA from dung beetles to sample mammals in the hyperdiverse Neotropics. Mol Ecol Resour 2024:e13961. [PMID: 38646932 DOI: 10.1111/1755-0998.13961] [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: 10/31/2023] [Revised: 03/16/2024] [Accepted: 04/08/2024] [Indexed: 04/25/2024]
Abstract
Over the past few years, insects have been used as samplers of vertebrate diversity by assessing the ingested-derived DNA (iDNA), and dung beetles have been shown to be a good mammal sampler given their broad feeding preference, wide distribution and easy sampling. Here, we tested and optimized the use of iDNA from dung beetles to assess the mammal community by evaluating if some biological and methodological aspects affect the use of dung beetles as mammal species samplers. We collected 403 dung beetles from 60 pitfall traps. iDNA from each dung beetle was sequenced by metabarcoding using two mini-barcodes (12SrRNA and 16SrRNA). We assessed whether dung beetles with different traits related to feeding, nesting and body size differed in the number of mammal species found in their iDNA. We also tested differences among four killing solutions in preserving the iDNA and compared the effectiveness of each mini barcode to recover mammals. We identified a total of 50 mammal OTUs (operational taxonomic unit), including terrestrial and arboreal species from 10 different orders. We found that at least one mammal-matching sequence was obtained from 70% of the dung beetle specimens. The number of mammal OTUs obtained did not vary with dung beetle traits as well as between the killing solutions. The 16SrRNA mini-barcode recovered a higher number of mammal OTUs than 12SrRNA, although both sets were partly non-overlapping. Thus, the complete mammal diversity may not be achieved by using only one of them. This study refines the methodology for routine assessment of tropical mammal communities via dung beetle 'samplers' and its universal applicability independently of the species traits of local beetle communities.
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Affiliation(s)
- Bruno H Saranholi
- Department of Life Sciences, Imperial College London, Ascot, UK
- Departamento de Genética e Evolução, Universidade Federal de São Carlos, São Carlos, Brazil
| | - Filipe M França
- School of Biological Sciences, University of Bristol, Bristol, UK
- Graduate Program in Ecology, Biological Sciences Institute, Federal University of Pará, Belém, Pará, Brazil
| | - Alfried P Vogler
- Department of Life Sciences, Imperial College London, Ascot, UK
- Department of Life Sciences, Natural History Museum, London, UK
| | - Jos Barlow
- Lancaster Environment Centre, Lancaster University, Lancaster, UK
| | - Fernando Z Vaz de Mello
- Departamento de Biologia e Zoologia, Universidade Federal de Mato Grosso, Instituto de Biociências, Cuiabá, MT, Brazil
| | - Maria E Maldaner
- Programa de Pós-Graduação Em Ecologia e Conservação da Biodiversidade (PPGECB), Universidade Federal de Mato Grosso (UFMT), Cuiabá, Brazil
| | - Edrielly Carvalho
- Programa de Pós-Graduação Em Entomologia, Instituto Nacional de Pesquisas da Amazônia, INPA, Manaus, Amazonas, Brazil
| | - Carla C Gestich
- Departamento de Genética e Evolução, Universidade Federal de São Carlos, São Carlos, Brazil
| | - Benjamin Howes
- Department of Life Sciences, Imperial College London, Ascot, UK
| | | | - Pedro M Galetti
- Departamento de Genética e Evolução, Universidade Federal de São Carlos, São Carlos, Brazil
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2
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Melo RS, Alexandrino ER, de Paula FR, Boscolo D, de Barros Ferraz SF. Promoting Bird Functional Diversity on Landscapes with a Matrix of Planted Eucalyptus spp. in the Atlantic Forest. ENVIRONMENTAL MANAGEMENT 2024; 73:395-407. [PMID: 37796334 DOI: 10.1007/s00267-023-01888-9] [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: 06/21/2023] [Accepted: 09/17/2023] [Indexed: 10/06/2023]
Abstract
Promoting the diversity of biological communities in areas of agricultural production is a very current debate since protected areas may not be sufficient to ensure biodiversity conservation. Among the biological communities affected by the production areas are birds, which show rapid responses to changes in the landscape. Here we seek to understand how landscape planning, concerning its composition and configuration, in areas with a matrix of planted Eucalyptus spp. forests influences the functional diversity of bird assemblages in the Atlantic Forest. Our results show that the spatial distribution design of planted forests in terms of age, land cover and clone types have effects on bird diversity with regard to functional divergence, functional evenness and species richness. These results reinforce the importance of good management for the maintenance of bird diversity. We found that bird functional diversity in planted forest matrices increased with the proximity index, proportion of native vegetation and age importance value, and is negatively influenced by edge density and proportion of forest plantation. For bird conservation, it is thus better to associate Eucalyptus spp. with other cover types in the landscape. These results corroborate that, to increase bird functional diversity, it is possible to associate conservation and production in the same landscape. Mosaic landscapes have great potential to contribute to the conservation of bird biodiversity outside protected areas. However, decisions regarding the management of planted forests and planning of improved areas intended for conservation seem to be decisive to ensure the maintenance of bird biodiversity.
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Affiliation(s)
- Renata Siqueira Melo
- Laboratório de Hidrologia Florestal, Departamento de Ciências Florestais, Escola Superior de Agricultura "Luiz de Queiroz"-ESALQ, Universidade de São Paulo-USP, Av. Pádua Dias, 11, CEP 13.418-900, Piracicaba, SP, Brazil.
| | - Eduardo Roberto Alexandrino
- Laboratório de Ecologia, Manejo e Conservação da Fauna Silvestre, Departamento de Ciências Florestais, Escola Superior de Agricultura "Luiz de Queiroz"-ESALQ, Universidade de São Paulo-USP, Av. Pádua Dias, 11, CEP 13.418-900, Piracicaba, SP, Brazil
| | - Felipe Rossetti de Paula
- Laboratório de Hidrologia Florestal, Departamento de Ciências Florestais, Escola Superior de Agricultura "Luiz de Queiroz"-ESALQ, Universidade de São Paulo-USP, Av. Pádua Dias, 11, CEP 13.418-900, Piracicaba, SP, Brazil
| | - Danilo Boscolo
- Departamento de Biologia, Faculdade de Filosofia Ciências e Letras de Ribeirão Preto-FFCLRP, Universidade de São Paulo-USP, Av. Bandeirantes, 3900, CEP 14.040-901, Ribeirão Preto, SP, Brazil
- Institute of Science and Technology in Interdisciplinary and Transdisciplinary Studies in Ecology and Evolution (IN-TREE), Salvador, Brazil
| | - Silvio Frosini de Barros Ferraz
- Laboratório de Hidrologia Florestal, Departamento de Ciências Florestais, Escola Superior de Agricultura "Luiz de Queiroz"-ESALQ, Universidade de São Paulo-USP, Av. Pádua Dias, 11, CEP 13.418-900, Piracicaba, SP, Brazil
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3
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Chessa C, Susca T. Development of an LCA characterization factor to account UHI local effect on terrestrial ecosystems damage category: Evaluation of European Bombus and Onthophagus genera heat-stress mortality. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 897:165183. [PMID: 37385499 DOI: 10.1016/j.scitotenv.2023.165183] [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: 05/12/2023] [Revised: 06/09/2023] [Accepted: 06/26/2023] [Indexed: 07/01/2023]
Abstract
Life Cycle Assessment as currently implemented fails in detecting and measuring the interactions between urban climate and built environment, specifically the urban heat island, providing potentially misleading results. The present study offers an advancement in Life Cycle Assessment methodology, and specifically in ReCiPe2016 method, by (a) suggesting the implementation of the Local Warming Potential midpoint impact category where the variation of urban temperature converges; (b) developing a new characterization factor through the definition of damage pathways to assess the effect of urban heat island on terrestrial ecosystems damage category, specifically on European Bombus and Onthophagus genera; (c) defining local endpoint damage categories where environmental local impacts can be addressed. The developed characterization factor has been applied to the case study of an urban area in Rome, Italy. The results show that the evaluation of the effects of urban overheating on local terrestrial ecosystems is meaningful and may support urban decision-makers who want to holistically assess urban plans.
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Affiliation(s)
| | - Tiziana Susca
- ENEA Italian National Agency for New Technologies, Energy and Sustainable Economic Development, Department Unit for Energy Efficiency, Italy.
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Sayers CJ, Evers DC, Ruiz-Gutierrez V, Adams E, Vega CM, Pisconte JN, Tejeda V, Regan K, Lane OP, Ash AA, Cal R, Reneau S, Martínez W, Welch G, Hartwell K, Teul M, Tzul D, Arendt WJ, Tórrez MA, Watsa M, Erkenswick G, Moore CE, Gerson J, Sánchez V, Purizaca RP, Yurek H, Burton MEH, Shrum PL, Tabares-Segovia S, Vargas K, Fogarty FF, Charette MR, Martínez AE, Bernhardt ES, Taylor RJ, Tear TH, Fernandez LE. Mercury in Neotropical birds: a synthesis and prospectus on 13 years of exposure data. ECOTOXICOLOGY (LONDON, ENGLAND) 2023; 32:1096-1123. [PMID: 37907784 PMCID: PMC10622370 DOI: 10.1007/s10646-023-02706-y] [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] [Accepted: 10/09/2023] [Indexed: 11/02/2023]
Abstract
Environmental mercury (Hg) contamination of the global tropics outpaces our understanding of its consequences for biodiversity. Knowledge gaps of pollution exposure could obscure conservation threats in the Neotropics: a region that supports over half of the world's species, but faces ongoing land-use change and Hg emission via artisanal and small-scale gold mining (ASGM). Due to their global distribution and sensitivity to pollution, birds provide a valuable opportunity as bioindicators to assess how accelerating Hg emissions impact an ecosystem's ability to support biodiversity, and ultimately, global health. We present the largest database on Neotropical bird Hg concentrations (n = 2316) and establish exposure baselines for 322 bird species spanning nine countries across Central America, South America, and the West Indies. Patterns of avian Hg exposure in the Neotropics broadly align with those in temperate regions: consistent bioaccumulation across functional groups and high spatiotemporal variation. Bird species occupying higher trophic positions and aquatic habitats exhibited elevated Hg concentrations that have been previously associated with reductions in reproductive success. Notably, bird Hg concentrations were over four times higher at sites impacted by ASGM activities and differed by season for certain trophic niches. We developed this synthesis via a collaborative research network, the Tropical Research for Avian Conservation and Ecotoxicology (TRACE) Initiative, which exemplifies inclusive, equitable, and international data-sharing. While our findings signal an urgent need to assess sampling biases, mechanisms, and consequences of Hg exposure to tropical avian communities, the TRACE Initiative provides a meaningful framework to achieve such goals. Ultimately, our collective efforts support and inform local, scientific, and government entities, including Parties of the United Nations Minamata Convention on Mercury, as we continue working together to understand how Hg pollution impacts biodiversity conservation, ecosystem function, and public health in the tropics.
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Affiliation(s)
- Christopher J Sayers
- Department of Ecology and Evolutionary Biology, University of California, Los Angeles, CA, 90095, USA.
- Center for Mercury Studies, Biodiversity Research Institute, 276 Canco Road, Portland, ME, 04103, USA.
- Centro de Innovación Científica Amazónica, Puerto Maldonado, Madre de Dios, 17000, Peru.
| | - David C Evers
- Center for Mercury Studies, Biodiversity Research Institute, 276 Canco Road, Portland, ME, 04103, USA
| | | | - Evan Adams
- Center for Mercury Studies, Biodiversity Research Institute, 276 Canco Road, Portland, ME, 04103, USA
| | - Claudia M Vega
- Centro de Innovación Científica Amazónica, Puerto Maldonado, Madre de Dios, 17000, Peru
- Department of Biology, Center for Energy, Environment and Sustainability, Wake Forest University, Winston-Salem, NC, 27106, USA
| | - Jessica N Pisconte
- Centro de Innovación Científica Amazónica, Puerto Maldonado, Madre de Dios, 17000, Peru
| | - Vania Tejeda
- Centro de Innovación Científica Amazónica, Puerto Maldonado, Madre de Dios, 17000, Peru
| | - Kevin Regan
- Center for Mercury Studies, Biodiversity Research Institute, 276 Canco Road, Portland, ME, 04103, USA
| | - Oksana P Lane
- Center for Mercury Studies, Biodiversity Research Institute, 276 Canco Road, Portland, ME, 04103, USA
| | - Abidas A Ash
- Environmental Research Institute, University of Belize, Price Center Road, P.O. Box 340, Belmopan, Cayo District, Belize
| | - Reynold Cal
- Foundation for Wildlife Conservation, Tropical Education Center, 28 George Price Highway, P.O. Box 368, La Democracia, Belize District, Belize
| | - Stevan Reneau
- Foundation for Wildlife Conservation, Tropical Education Center, 28 George Price Highway, P.O. Box 368, La Democracia, Belize District, Belize
| | - Wilber Martínez
- Foundation for Wildlife Conservation, Tropical Education Center, 28 George Price Highway, P.O. Box 368, La Democracia, Belize District, Belize
| | - Gilroy Welch
- Foundation for Wildlife Conservation, Tropical Education Center, 28 George Price Highway, P.O. Box 368, La Democracia, Belize District, Belize
| | - Kayla Hartwell
- Foundation for Wildlife Conservation, Tropical Education Center, 28 George Price Highway, P.O. Box 368, La Democracia, Belize District, Belize
| | - Mario Teul
- Foundation for Wildlife Conservation, Tropical Education Center, 28 George Price Highway, P.O. Box 368, La Democracia, Belize District, Belize
| | - David Tzul
- Foundation for Wildlife Conservation, Tropical Education Center, 28 George Price Highway, P.O. Box 368, La Democracia, Belize District, Belize
| | - Wayne J Arendt
- International Institute of Tropical Forestry, USDA Forest Service, 1201 Calle Ceiba, Jardín Botánico Sur, San Juan, 00926-1119, Puerto Rico
| | - Marvin A Tórrez
- Instituto Interdisciplinario de Ciencias Naturales, Universidad Centroamericana, Managua, Nicaragua
| | - Mrinalini Watsa
- Beckman Center for Conservation Research, San Diego Zoo Wildlife Alliance, P.O. Box 120551, San Diego, CA, 92112, USA
- Field Projects International, Escondido, CA, 92029, USA
| | | | - Caroline E Moore
- Beckman Center for Conservation Research, San Diego Zoo Wildlife Alliance, P.O. Box 120551, San Diego, CA, 92112, USA
| | - Jacqueline Gerson
- Department of Earth & Environmental Sciences, Michigan State University, East Lansing, MI, 48824, USA
| | - Victor Sánchez
- Instituto de Investigación en Ecología y Conservación, Trujillo, Peru
| | - Raúl Pérez Purizaca
- Universidad Nacional de Piura, Urb. Miraflores S/N, Castilla, 20002, Piura, Peru
| | - Helen Yurek
- Center for Mercury Studies, Biodiversity Research Institute, 276 Canco Road, Portland, ME, 04103, USA
| | - Mark E H Burton
- Center for Mercury Studies, Biodiversity Research Institute, 276 Canco Road, Portland, ME, 04103, USA
| | - Peggy L Shrum
- Department of Fisheries and Wildlife Biology, Clemson University, Clemson, SC, 29634, USA
| | | | - Korik Vargas
- Center for Mercury Studies, Biodiversity Research Institute, 276 Canco Road, Portland, ME, 04103, USA
| | - Finola F Fogarty
- Department of Zoology, Faculty of Science, University of British Columbia, Vancouver, BC, Canada
- Toucan Ridge Ecology and Education Society, 27.5 Miles Hummingbird Hwy, Stann Creek, Belize
| | - Mathieu R Charette
- Toucan Ridge Ecology and Education Society, 27.5 Miles Hummingbird Hwy, Stann Creek, Belize
| | - Ari E Martínez
- Department of Ecology & Evolutionary Biology, University of California, Santa Cruz, CA, 95064, USA
| | | | - Robert J Taylor
- Department of Veterinary Medicine & Biomedical Sciences, Texas A&M University, College Station, TX, 77843, USA
| | - Timothy H Tear
- Center for Mercury Studies, Biodiversity Research Institute, 276 Canco Road, Portland, ME, 04103, USA
| | - Luis E Fernandez
- Centro de Innovación Científica Amazónica, Puerto Maldonado, Madre de Dios, 17000, Peru
- Department of Biology, Center for Energy, Environment and Sustainability, Wake Forest University, Winston-Salem, NC, 27106, USA
- Department of Global Ecology, Carnegie Institution for Science, Stanford, CA, 94305, USA
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5
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Cunha Neto EMDA, Veras HFP, Moura MM, Berti AL, Sanquetta CR, Pelissari AL, Corte APD. Combining ALS and UAV to derive the height of \textit{Araucaria angustifolia. AN ACAD BRAS CIENC 2023; 95:e20201503. [PMID: 37222358 DOI: 10.1590/0001-3765202320201503] [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: 09/18/2020] [Accepted: 04/17/2022] [Indexed: 05/25/2023] Open
Abstract
Quantitative data obtained from native forests is costly and time-consuming. Thus, alternative measurement methods need to be developed to provide reliable information, especially in Atlantic Rain Forests. In this study we evaluated the hypothesis that the combination of an Airborne Laser Scanner (ALS) and an Unmanned Aerial Vehicle (UAV) can provide accurate quantitative information on tree height, volume, and aboveground biomass of the Araucaria angustifolia species. The study was carried out in Atlantic Rain forest fragments in southern Brazil. We tested and evaluated 3 digital canopy height model (CHM) scenarios: 1) CHM derived from ALS models; 2) CHM derived from UAV models; and 3) CHM from a combined ALS digital terrain model and UAV digital surface model. The height value at each tree coordinate was extracted from the pixel in the three evaluated scenarios and compared with the field measured values. ALS and UAV+ALS obtained RMSE% of 6.38 and 12.82 for height estimates, while UAV was 49.91%. Volume and aboveground biomass predictions are more accurate by ALS and UAV+ALS, while the UAV produced biased estimates. Since the ALS is currently used, periodic monitoring can be carried out by a combination of active (ALS) and passive (UAV) sensors.
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Affiliation(s)
- Ernandes M DA Cunha Neto
- Departamento de Engenharia Florestal, Universidade Federal do Paraná, Av. Prefeito Lothário Meissner, 632, Jardim Botânico, 80210-170 Curitiba, PR" Brazil
| | - Hudson F P Veras
- Departamento de Engenharia Florestal, Universidade Federal do Paraná, Av. Prefeito Lothário Meissner, 632, Jardim Botânico, 80210-170 Curitiba, PR" Brazil
| | - Marks M Moura
- Departamento de Engenharia Florestal, Universidade Federal do Paraná, Av. Prefeito Lothário Meissner, 632, Jardim Botânico, 80210-170 Curitiba, PR" Brazil
| | - André L Berti
- Departamento de Engenharia Florestal, Universidade Federal Tecnológica do Paraná, Estr. p/ Boa Esperança, km 04 - Zona Rural, 85660-000 Dois Vizinhos, PR, Brazil
| | - Carlos R Sanquetta
- Departamento de Engenharia Florestal, Universidade Federal do Paraná, Av. Prefeito Lothário Meissner, 632, Jardim Botânico, 80210-170 Curitiba, PR" Brazil
| | - Allan L Pelissari
- Departamento de Engenharia Florestal, Universidade Federal do Paraná, Av. Prefeito Lothário Meissner, 632, Jardim Botânico, 80210-170 Curitiba, PR" Brazil
| | - Ana Paula D Corte
- Departamento de Engenharia Florestal, Universidade Federal do Paraná, Av. Prefeito Lothário Meissner, 632, Jardim Botânico, 80210-170 Curitiba, PR" Brazil
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6
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Carvalho EC, Maldaner ME, Costa-Silva V, Sehn H, Franquini C, Campos VO, Seba VP, Maia LF, Vaz-de-Mello FZ, França FM. Dung beetles from two sustainable-use protected forests in the Brazilian Amazon. Biodivers Data J 2023; 11:e96101. [PMID: 38327344 PMCID: PMC10848333 DOI: 10.3897/bdj.11.e96101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Accepted: 02/14/2023] [Indexed: 03/18/2023] Open
Abstract
Background The Amazon Forest is one of the world's most biodiverse ecosystems and yet its protected areas are understudied concerning insects and other invertebrates. These organisms are essential for tropical forests due to their ecological processes, with some species being very sensitive to habitat disturbances. Dung beetles (Coleoptera, Scarabaeidae, Scarabaeinae) have been used as bioindicators for more than 30 years and were surveyed to assess the insect biodiversity of two sustainable-use forest reserves in the Brazilian Amazon. New information We report inventories of dung beetles from two Amazonian forest reserves in Pará State, Brazil: the Tapajós National Forest and the Carajás National Forest. Surveys were carried out with baited-pitfall traps installed in 2010, 2016, 2017 and 2019. We collected a total of 3,772 individuals from 19 genera and 96 species. We highlight the importance of Amazonian protected areas as refugia for insect biodiversity, particularly dung beetles, which contribute to many key ecosystem processes.
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Affiliation(s)
- Edrielly C. Carvalho
- Departamento de Biologia e Zoologia, Instituto de Biociências, Universidade Federal de Mato Grosso. Laboratório de Scarabaeoidologia. Instituto de Biociências - UFMT, Cuiabá, BrazilDepartamento de Biologia e Zoologia, Instituto de Biociências, Universidade Federal de Mato Grosso. Laboratório de Scarabaeoidologia. Instituto de Biociências - UFMTCuiabáBrazil
- Programa de Pós-Graduação em Entomologia. Instituto Nacional de Pesquisas da Amazônia – INPA, Manaus, BrazilPrograma de Pós-Graduação em Entomologia. Instituto Nacional de Pesquisas da Amazônia – INPAManausBrazil
| | - Maria Eduarda Maldaner
- Programa de Pós-Graduação em Ecologia e Conservação da Biodiversidade (PPGECB), Universidade Federal de Mato Grosso - UFMT, Cuiaba, BrazilPrograma de Pós-Graduação em Ecologia e Conservação da Biodiversidade (PPGECB), Universidade Federal de Mato Grosso - UFMTCuiabaBrazil
| | - Vinicius Costa-Silva
- Departamento de Biologia e Zoologia, Instituto de Biociências, Universidade Federal de Mato Grosso. Laboratório de Scarabaeoidologia. Instituto de Biociências - UFMT, Cuiabá, BrazilDepartamento de Biologia e Zoologia, Instituto de Biociências, Universidade Federal de Mato Grosso. Laboratório de Scarabaeoidologia. Instituto de Biociências - UFMTCuiabáBrazil
- Laboratory of Integrative Entomology, Department of Animal Biology, Institute of Biology, University of Campinas, Campinas, BrazilLaboratory of Integrative Entomology, Department of Animal Biology, Institute of Biology, University of CampinasCampinasBrazil
| | - Heivanice Sehn
- Programa de Pós-Graduação em Zoologia. Instituto de Biociências, Universidade Federal de Mato Grosso - UFMT, Cuiabá, BrazilPrograma de Pós-Graduação em Zoologia. Instituto de Biociências, Universidade Federal de Mato Grosso - UFMTCuiabáBrazil
| | - Carol Franquini
- Departamento de Biologia e Zoologia, Instituto de Biociências, Universidade Federal de Mato Grosso. Laboratório de Scarabaeoidologia. Instituto de Biociências - UFMT, Cuiabá, BrazilDepartamento de Biologia e Zoologia, Instituto de Biociências, Universidade Federal de Mato Grosso. Laboratório de Scarabaeoidologia. Instituto de Biociências - UFMTCuiabáBrazil
| | - Vinicius O. Campos
- Departamento de Biologia e Zoologia, Instituto de Biociências, Universidade Federal de Mato Grosso. Laboratório de Scarabaeoidologia. Instituto de Biociências - UFMT, Cuiabá, BrazilDepartamento de Biologia e Zoologia, Instituto de Biociências, Universidade Federal de Mato Grosso. Laboratório de Scarabaeoidologia. Instituto de Biociências - UFMTCuiabáBrazil
| | - Vinicius P. Seba
- Departamento de Biologia e Zoologia, Instituto de Biociências, Universidade Federal de Mato Grosso. Laboratório de Scarabaeoidologia. Instituto de Biociências - UFMT, Cuiabá, BrazilDepartamento de Biologia e Zoologia, Instituto de Biociências, Universidade Federal de Mato Grosso. Laboratório de Scarabaeoidologia. Instituto de Biociências - UFMTCuiabáBrazil
| | - Laís F. Maia
- School of Biological Sciences, University of Bristol, Queens Road, BS8 1QU, UK, Bristol, United KingdomSchool of Biological Sciences, University of Bristol, Queens Road, BS8 1QU, UKBristolUnited Kingdom
| | - Fernando Z. Vaz-de-Mello
- Departamento de Biologia e Zoologia, Instituto de Biociências, Universidade Federal de Mato Grosso. Laboratório de Scarabaeoidologia. Instituto de Biociências - UFMT, Cuiabá, BrazilDepartamento de Biologia e Zoologia, Instituto de Biociências, Universidade Federal de Mato Grosso. Laboratório de Scarabaeoidologia. Instituto de Biociências - UFMTCuiabáBrazil
| | - Filipe Machado França
- School of Biological Sciences, University of Bristol, Queens Road, BS8 1QU, UK, Bristol, United KingdomSchool of Biological Sciences, University of Bristol, Queens Road, BS8 1QU, UKBristolUnited Kingdom
- Programa de Pós-Graduação em Ecologia (PPGECO), Universidade Federal do Pará, Belém, PA, 66075-110, Brazil, Belém, BrazilPrograma de Pós-Graduação em Ecologia (PPGECO), Universidade Federal do Pará, Belém, PA, 66075-110, BrazilBelémBrazil
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7
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Rodríguez-González S, Portela R, Córdoba-Aguilar A. Research trends in mosquito studies in urban areas. Acta Trop 2023; 241:106888. [PMID: 36889424 DOI: 10.1016/j.actatropica.2023.106888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 02/27/2023] [Accepted: 03/04/2023] [Indexed: 03/08/2023]
Abstract
Urbanization is causing a significant impact on biodiversity and human health. The increase in vector-borne diseases in recent decades is linked to changes in the environment due to urbanization. We have reviewed published information on urban mosquitoes from around the globe to examine major study trends in terms of urbanization, and the type of arboviruses they vector. Our review showed a surge in research on urban mosquitoes in the past 15 years, with the majority of studies conducted in the Americas and focusing on Aedes aegypti and Ae. albopictus. However, the findings also highlight a lack of basic monitoring data on mosquito diversity and vector-borne diseases in many countries, which poses a challenge for disease control.
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Affiliation(s)
- Stephany Rodríguez-González
- Posgrado en Ciencias Biológicas, Universidad Nacional Autónoma de México; Departamento de Ecología Evolutiva, Instituto de Ecología, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria, 04510 Coyoacán, Ciudad de México, Mexico
| | - Renato Portela
- Departamento de Ecología Evolutiva, Instituto de Ecología, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria, 04510 Coyoacán, Ciudad de México, Mexico
| | - Alex Córdoba-Aguilar
- Departamento de Ecología Evolutiva, Instituto de Ecología, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria, 04510 Coyoacán, Ciudad de México, Mexico.
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8
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Mora-Aguilar EF, Arriaga-Jiménez A, Correa CMA, da Silva PG, Korasaki V, López-Bedoya PA, Hernández MIM, Pablo-Cea JD, Salomão RP, Valencia G, Vulinec K, Edwards FA, Edwards DP, Halffter G, Noriega JA. Toward a standardized methodology for sampling dung beetles (Coleoptera: Scarabaeinae) in the Neotropics: A critical review. Front Ecol Evol 2023. [DOI: 10.3389/fevo.2023.1096208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023] Open
Abstract
IntroductionThe standardization of sampling protocols is imperative for robustly studying any taxonomic group. Replicable methods allow the comparison of data between different spatial and temporal studies. In the case of dung beetles, one of the best-studied indicator groups in analyses of environmental disturbance, a wide range of collection methodologies are used, from basic pitfall traps to more complex or complementary methods such as mini-Winkler extractor. Also, different types of attractive baits, sampling effort, durations, and designs are used in dung beetle studies. Variations in methodological approaches are particularly noted in the Neotropics, which may be related to the vast number of biological strategies and behavior of dung beetles that inhabit this region. A lack of methodological unification for the Neotropical region makes a cross-sectional analysis of the information impossible.MethodsWe performed a compilation and analytical review of the existing literature for dung beetle sampling in the Neotropics, discussing the most used methodologies, their advantages and disadvantages, and specific cases in which particular models are more efficient.ResultsPitfall traps baited with human excrement are the most common sampling method, but there is a wide range of models and variations in the structure of this trap. The complementary effect generated by flight interception traps, light traps, and direct collections, particularly within microhabitats, is exciting for the potential of finding new species. Some methodologies, such as mini-Winkler extractor, fogging, or very specific baits, are infrequently used.DiscussionThere was a lack of inclusion of spatial and temporal variation among studies. Therefore, it is necessary to consider broader sampling windows, which include different spatial scales, seasons, and years. Finally, we propose a standard protocol for sampling dung beetles in the Neotropics, depending on each objective, and including a basic methodology for obtaining complete local inventories.
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Cerini F, Childs DZ, Clements CF. A predictive timeline of wildlife population collapse. Nat Ecol Evol 2023; 7:320-331. [PMID: 36702859 DOI: 10.1038/s41559-023-01985-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Accepted: 01/06/2023] [Indexed: 01/27/2023]
Abstract
Contemporary rates of biodiversity decline emphasize the need for reliable ecological forecasting, but current methods vary in their ability to predict the declines of real-world populations. Acknowledging that stressor effects start at the individual level, and that it is the sum of these individual-level effects that drives populations to collapse, shifts the focus of predictive ecology away from using predominantly abundance data. Doing so opens new opportunities to develop predictive frameworks that utilize increasingly available multi-dimensional data, which have previously been overlooked for ecological forecasting. Here, we propose that stressed populations will exhibit a predictable sequence of observable changes through time: changes in individuals' behaviour will occur as the first sign of increasing stress, followed by changes in fitness-related morphological traits, shifts in the dynamics (for example, birth rates) of populations and finally abundance declines. We discuss how monitoring the sequential appearance of these signals may allow us to discern whether a population is increasingly at risk of collapse, or is adapting in the face of environmental change, providing a conceptual framework to develop new forecasting methods that combine multi-dimensional (for example, behaviour, morphology, life history and abundance) data.
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Affiliation(s)
- Francesco Cerini
- School of Biological Sciences, University of Bristol, Bristol, UK.
| | - Dylan Z Childs
- School of Biosciences, University of Sheffield, Sheffield, UK
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Carvalho WD, Miguel JD, da Silva Xavier B, López-Baucells A, de Castro IJ, Hilário RR, de Toledo JJ, Rocha R, Palmeirim JM. Complementarity between mist-netting and low-cost acoustic recorders to sample bats in Amazonian rainforests and savannahs. COMMUNITY ECOL 2022. [DOI: 10.1007/s42974-022-00131-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Dung beetles prefer used land over natural greenspace in urban landscape. Sci Rep 2022; 12:22179. [PMID: 36564513 PMCID: PMC9789146 DOI: 10.1038/s41598-022-26841-4] [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: 11/04/2021] [Accepted: 12/21/2022] [Indexed: 12/24/2022] Open
Abstract
Urbanization drives land-use and patterns of biodiversity. Yet, very little is known about how biodiversity of structurally different habitats is responded to urbanization. We surveyed coprophagous dung beetles and their ecological functional groups-tunnellers, dwellers, and rollers-in shaded natural semi-evergreen forests of sacred groves and the neighbouring relatively open home gardens of sites that represent three levels of urbanization to address the following questions: (1) Do sacred groves have higher abundance, richness, and diversity of dung beetles than home gardens? (2) Is urbanization a key driver of dung beetle abundance, richness, diversity, and community? (3) Is dung beetle assemblage of sacred groves immune to urbanization? and (4) Which ecological functional groups of dung beetles are affected by urbanization? We hypothesized that the sacred groves have a distinct community, resulting in higher abundance, richness, and diversity of dung beetles than home gardens, and the dung beetle assemblage of sacred groves may be immune to urbanization. We sampled the beetles during wet and dry periods using cow dung as a bait. Against our predictions, dung beetle abundance, richness, and diversity were higher in used lands than sacred groves, particularly in urban landscapes. The two habitats had distinct compositions of dung beetles. Tunnellers and rollers were affected by urbanization, but not dwellers. Heliophilic and synanthropic species characterized by smaller species dominated overall catches in the used lands of urban areas. Results downplay sacred grove as a potential refuge for dung beetles and suggest that the biodiversity of native forests may be affected more by urbanization than the manipulated anthropogenic habitats.
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Bellaver J, Romanowski HP, Richter A, Iserhard CA. Living on the edge: The use of fruit‐feeding butterflies to evaluate edge effect on subtropical assemblages. AUSTRAL ECOL 2022. [DOI: 10.1111/aec.13261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Juliane Bellaver
- Programa de Pós‐Graduação em Biologia Animal Universidade Federal do Rio Grande do Sul Porto Alegre Brazil
| | - Helena Piccoli Romanowski
- Programa de Pós‐Graduação em Biologia Animal Universidade Federal do Rio Grande do Sul Porto Alegre Brazil
| | - Aline Richter
- Departamento de Ecologia Universidade Federal do Rio Grande do Sul Porto Alegre Brazil
| | - Cristiano Agra Iserhard
- Programa de Pós‐Graduação em Biodiversidade Animal Universidade Federal de Pelotas Pelotas Brazil
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Supsup CE, Asis AA, Edaño JWB, Mallari NAD. Anuran assemblages in western Philippines: Unraveling the effects of habitat types, water availability, and elevation. ACTA OECOLOGICA 2022. [DOI: 10.1016/j.actao.2022.103869] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Rivera JD, Favila ME. Good news! Sampling intensity needed for accurate assessments of dung beetle diversity may be lower in the Neotropics. Front Ecol Evol 2022. [DOI: 10.3389/fevo.2022.999488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Ecological studies with Scarabaeinae dung beetles have increased exponentially over the past 30 years, using lethal pitfall traps baited with mammal feces or carrion as the preferred sampling method. Different studies have determined the distance between pitfall traps for effective sampling, but the number of traps is often subjective, leading to excessive or poor sampling. This study provides quantitative guidelines for establishing the sample size for optimal completeness of dung beetle diversity by systematically reviewing the relationship between sampling intensity and sampling coverage, habitat type, and the journal impact factor in peer-reviewed research. We gathered 94 studies covering a range from México to Argentina. Sampling was conducted mainly in forested habitats, followed by treeless agriculture and agroforestry systems, with a median value of 50 pitfall traps per sampled habitat. Sampling completeness was above 0.9 in 95% of the studies. Oversampling ranged from 1 to more than 96,000 individuals, and sampling deficit varied between 2 and 3,300 specimens. Sampling intensity and the journal impact factor were significantly and positively correlated with oversampling, but these variables did not explain the sampling deficit. The positive correlation between journal impact factor and oversampling may reflect a publication bias where high-impact journals and researchers seek more generalizable information obtained with a higher sampling intensity. Dung beetle oversampling was not homogeneous between habitats, being highest in old-growth forests and lowest in disturbed habitats such as pastures and forest edges. Our results show that the collection intensity used in dung beetle studies should be reconsidered carefully. By incorporating ethical principles used in animal science, we suggest sampling guidelines for a robust sampling scheme of dung beetle diversity, which would also prevent oversampling. Consciously reducing sampling intensity will make resource use more cost-effective. We suggest increasing the number of independent sampling units rather than intensifying subsampling, thereby increasing the predictive power of statistical models to obtain more robust evidence of the phenomena under study.
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Lalagüe H, Vedel V, Pétillon J. Small scale changes in spider diversity and composition between two close elevations in a Neotropical forest. STUDIES ON NEOTROPICAL FAUNA AND ENVIRONMENT 2022. [DOI: 10.1080/01650521.2022.2117530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Hadrien Lalagüe
- UMR EcoFoG, AgroParisTech, CNRS, CIRAD, INRAE, Université des Antilles, Université de Guyane, Kourou Cedex, France
| | - Vincent Vedel
- UMR EcoFoG, AgroParisTech, CNRS, CIRAD, INRAE, Université des Antilles, Université de Guyane, Kourou Cedex, France
| | - Julien Pétillon
- UMR Ecobio, Université de Rennes 1, Rennes, France
- Institute for Coastal and Marine Research, Nelson Mandela University, Port Elizabeth, South Africa
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Use of Unoccupied Aerial Systems to Characterize Woody Vegetation across Silvopastoral Systems in Ecuador. REMOTE SENSING 2022. [DOI: 10.3390/rs14143386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The trees in pastures are recognized for the benefits they provide to livestock, farmers, and the environment; nevertheless, their study has been restricted to small areas, making it difficult to upscale this information to national levels. For tropical developing countries, it is particularly important to understand the contribution of these systems to national carbon budgets. However, the costs associated with performing field measurements might limit the acquisition of this information. The use of unoccupied aerial systems (UAS) for ecological surveys has proved useful for collecting information at larger scales and with significantly lower costs. This study proposes a methodology that integrates field and UAS surveys to study trees on pasture areas across different terrain conditions. Our overall objective was to test the suitability of UAS surveys to the estimation of aboveground biomass (AGB), relying mainly on open-source software. The tree heights and crown diameters were measured on 0.1-hectare circular plots installed on pasture areas on livestock farms in the Amazon and Coastal regions in Ecuador. An UAS survey was performed on 1-hectare plots containing the circular plots. Field measurements were compared against canopy-height model values and biomass estimates using the two sources of information. Our results demonstrate that UAS surveys can be useful for identifying tree spatial arrangements and provide good estimates of tree height (RMSE values ranged from 0.01 to 3.53 m), crown diameter (RMSE values ranged from 0.04 to 4.47 m), and tree density (density differences ranging from 21.5 to 64.3%), which have a direct impact on biomass estimates. The differences in biomass estimates between the UAS and the field-measured values ranged from 25 to 75%, depending on site characteristics, such as slope and tree coverage. The results suggest that UASs are reliable and feasible tools with which to study tree characteristics on pastures, covering larger areas than field methods only.
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Alves da Silva RDS, Machado AF, Costa DA, José da Silva R, A. Correa CM, Vaz-de-Mello FZ. Contributions to the knowledge of the dung beetles (Scarabaeidae: Scarabaeinae) of southwestern Brazilian Amazon: list of species and conservation implications. STUDIES ON NEOTROPICAL FAUNA AND ENVIRONMENT 2022. [DOI: 10.1080/01650521.2022.2076983] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- Robson Dos Santos Alves da Silva
- Coleção Entomológica de Tangará da Serra (CEnTg), Laboratório de Zoologia, Universidade do Estado de Mato Grosso (UNEMAT), Tangará da Serra, Brasil
| | - Anildo Ferreira Machado
- Coleção Entomológica de Tangará da Serra (CEnTg), Laboratório de Zoologia, Universidade do Estado de Mato Grosso (UNEMAT), Tangará da Serra, Brasil
- Sistemas de Produção Agrícola, Universidade do Estado de Mato GrossoPrograma de Pós-Graduação em Ambiente e , Tangará da Serra, Brasil
| | - Diogo Andrade Costa
- da Saúde, Universidade do Estado de Mato Grosso (UNEMAT)Faculdade de Ciências Agrárias, Biológicas e , Tangará da Serra, Brasil
| | - Ricardo José da Silva
- Coleção Entomológica de Tangará da Serra (CEnTg), Laboratório de Zoologia, Universidade do Estado de Mato Grosso (UNEMAT), Tangará da Serra, Brasil
| | - César M. A. Correa
- Zoologia, Universidade Federal de Mato GrossoInstituto de Biociências, Departamento de Biologia e , Cuiabá, Brasil
| | - Fernando Zagury Vaz-de-Mello
- Zoologia, Universidade Federal de Mato GrossoInstituto de Biociências, Departamento de Biologia e , Cuiabá, Brasil
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Hierlmeier VR, Gurten S, Freier KP, Schlick-Steiner BC, Steiner FM. Persistent, bioaccumulative, and toxic chemicals in insects: Current state of research and where to from here? THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 825:153830. [PMID: 35181364 DOI: 10.1016/j.scitotenv.2022.153830] [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: 12/04/2021] [Revised: 02/07/2022] [Accepted: 02/08/2022] [Indexed: 06/14/2023]
Abstract
The ongoing decline in the biomass, abundance, and species number of insects is an established fact. Persistent, bioaccumulative, and toxic chemicals (PBTs) - persistent organic pollutants (POPs) and, in the case of our study, mercury (Hg) - play an important role, but their effect on insect populations is insufficiently investigated. Here, the current state of research on PBTs related to insects is examined with a systematic literature study using Web of Science™. We investigate time trends of research intensity compared with other organisms, insect orders and chemicals analyzed, chemicals' effects on insects, and geographical aspects. We show that research intensity increased in the early 1990s, but studies on PBTs in insects are still underrepresented compared with other organisms. The taxonomic focus lies strongly on dipterans. The predominance of studies on DDT suggests its relevance in the context of disease-vector management. Phenotypic and acute effects on insects were more often investigated than genotypic and chronic effects. Laboratory-bred insects and wild-bred insects were examined equally often, pollutant exposure and analysis were conducted predominantly in the laboratory. Mostly habitats with a medium or high human impact were studied, and natural and near-natural habitats are understudied. The sources of the substances are often unknown. Most studies were carried out in economically rich continents, including North America, Europe, and Australia. The numbers of publications dealing with Asia, South America, and Africa are comparatively low, although the control of vector-borne diseases with POPs is still intensively practiced there. We identify gaps in the research - among others, refined analytical methods for biomarkers and for the examination of chronic effects, combinations of field and laboratory experiments to analyze the same problem, and a global approach for the monitoring of PBTs will be needed for accelerating the dearly needed progress in the research of PBTs in insects.
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Affiliation(s)
- Veronika R Hierlmeier
- Department of Ecology, University of Innsbruck, Technikerstraße 25, 6020 Innsbruck, Austria; Bavarian Environment Agency, Department Gsteigstraße 43, 82467 Garmisch-Partenkirchen, Germany.
| | - Sabrina Gurten
- Department of Ecology, University of Innsbruck, Technikerstraße 25, 6020 Innsbruck, Austria.
| | - Korbinian P Freier
- Bavarian Environment Agency, Department Bürgermeister-Ulrich-Straße 160, 86179 Augsburg, Germany.
| | | | - Florian M Steiner
- Department of Ecology, University of Innsbruck, Technikerstraße 25, 6020 Innsbruck, Austria.
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Marques NC, Machado RB, Aguiar LM, Mendonça-Galvão L, Tidon R, Vieira EM, Marini-Filho OJ, Bustamante M. Drivers of change in tropical protected areas: Long-term monitoring of a Brazilian biodiversity hotspot. Perspect Ecol Conserv 2022. [DOI: 10.1016/j.pecon.2022.02.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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How Does Sample Labeling and Distribution Affect the Accuracy and Efficiency of a Deep Learning Model for Individual Tree-Crown Detection and Delineation. REMOTE SENSING 2022. [DOI: 10.3390/rs14071561] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Monitoring and assessing vegetation using deep learning approaches has shown promise in forestry applications. Sample labeling to represent forest complexity is the main limitation for deep learning approaches for remote sensing vegetation classification applications, and few studies have focused on the impact of sample labeling methods on model performance and model training efficiency. This study is the first-of-its-kind that uses Mask region-based convolutional neural networks (Mask R-CNN) to evaluate the influence of sample labeling methods (including sample size and sample distribution) on individual tree-crown detection and delineation. A flight was conducted over a plantation with Fokienia hodginsii as the main tree species using a Phantom4-Multispectral (P4M) to obtain UAV imagery, and a total of 2061 manually and accurately delineated tree crowns were used for training and validating (1689) and testing (372). First, the model performance of three pre-trained backbones (ResNet-34, ResNet-50, and ResNet-101) was evaluated. Second, random deleting and clumped deleting methods were used to repeatedly delete 10% from the original sample set to reduce the training and validation set, to simulate two different sample distributions (the random sample set and the clumped sample set). Both RGB image and Multi-band images derived from UAV flights were used to evaluate model performance. Each model’s average per-epoch training time was calculated to evaluate the model training efficiency. The results showed that ResNet-50 yielded a more robust network than ResNet-34 and ResNet-101 when the same parameters were used for Mask R-CNN. The sample size determined the influence of sample labeling methods on the model performance. Random sample labeling had lower requirements for sample size compared to clumped sample labeling, and unlabeled trees in random sample labeling had no impact on model training. Additionally, the model with clumped samples provides a shorter average per-epoch training time than the model with random samples. This study demonstrates that random sample labeling can greatly reduce the requirement of sample size, and it is not necessary to accurately label each sample in the image during the sample labeling process.
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Livestock grazing impact differently on the functional diversity of dung beetles depending on the regional context in subtropical forests. Sci Rep 2022; 12:1636. [PMID: 35102229 PMCID: PMC8803855 DOI: 10.1038/s41598-022-05616-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Accepted: 01/14/2022] [Indexed: 11/25/2022] Open
Abstract
The replacement of native forest by cattle pastures reduces functional diversity; however, little is known about whether the changes depend on regional variation. Dung beetles are one of the most diverse and functionally important taxa; through organic matter burial, dung beetles improve soil quality. We collected dung beetles in native forests and cattle ranching areas in subtropical forests with contrasting climatic conditions: the Atlantic Forest, the Humid Chaco, and the Dry Chaco. We measured 11 traits related to the ecology and the physiology of species. Irrespectively of the region, functional richness was higher in forests (native and with cattle) when compared to open pastures. Humid forests (Atlantic Forest and Humid Chaco) showed higher functional richness than Dry Chaco. Functional dispersion in humid forests was similar between native forest and livestock systems, however, functional dispersion in the Dry Chaco was higher in open pastures compared to native forest. According to our results, native forests and forests with cattle maintain functional diversity in all regions. However, in the case of open pastures, the response depends on the regional context; the replacement of native forest by open pastures strongly affected functional diversity in humid forests and showed less impact on dry forest.
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Comparison of Classical Methods and Mask R-CNN for Automatic Tree Detection and Mapping Using UAV Imagery. REMOTE SENSING 2022. [DOI: 10.3390/rs14020295] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Detecting and mapping individual trees accurately and automatically from remote sensing images is of great significance for precision forest management. Many algorithms, including classical methods and deep learning techniques, have been developed and applied for tree crown detection from remote sensing images. However, few studies have evaluated the accuracy of different individual tree detection (ITD) algorithms and their data and processing requirements. This study explored the accuracy of ITD using local maxima (LM) algorithm, marker-controlled watershed segmentation (MCWS), and Mask Region-based Convolutional Neural Networks (Mask R-CNN) in a young plantation forest with different test images. Manually delineated tree crowns from UAV imagery were used for accuracy assessment of the three methods, followed by an evaluation of the data processing and application requirements for three methods to detect individual trees. Overall, Mask R-CNN can best use the information in multi-band input images for detecting individual trees. The results showed that the Mask R-CNN model with the multi-band combination produced higher accuracy than the model with a single-band image, and the RGB band combination achieved the highest accuracy for ITD (F1 score = 94.68%). Moreover, the Mask R-CNN models with multi-band images are capable of providing higher accuracies for ITD than the LM and MCWS algorithms. The LM algorithm and MCWS algorithm also achieved promising accuracies for ITD when the canopy height model (CHM) was used as the test image (F1 score = 87.86% for LM algorithm, F1 score = 85.92% for MCWS algorithm). The LM and MCWS algorithms are easy to use and lower computer computational requirements, but they are unable to identify tree species and are limited by algorithm parameters, which need to be adjusted for each classification. It is highlighted that the application of deep learning with its end-to-end-learning approach is very efficient and capable of deriving the information from multi-layer images, but an additional training set is needed for model training, robust computer resources are required, and a large number of accurate training samples are necessary. This study provides valuable information for forestry practitioners to select an optimal approach for detecting individual trees.
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Penjor U, Jamtsho R, Sherub S. Anthropogenic land‐use change shapes bird diversity along the eastern Himalayan altitudinal gradient. J Appl Ecol 2021. [DOI: 10.1111/1365-2664.14101] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ugyen Penjor
- Wildlife Conservation Research Unit Department of Zoology University of Oxford Oxford UK
- Nature Conservation Division Department of Forests and Park Services Ministry of Agriculture and Forests Thimphu Bhutan
| | - Rinzin Jamtsho
- Infrastructure and Product Development Division Tourism Council of Bhutan Thimphu Bhutan
| | - Sherub Sherub
- Ugyen Wangchuck Institute for Conservation and Environment Research Department of Forests and Park Services Ministry of Agriculture and Forests Lamai Gonpa Bumthang Bhutan
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Braga‐Pereira F, Morcatty TQ, El Bizri HR, Tavares AS, Mere‐Roncal C, González‐Crespo C, Bertsch C, Rodriguez CR, Bardales‐Alvites C, von Mühlen EM, Bernárdez‐Rodríguez GF, Paim FP, Tamayo JS, Valsecchi J, Gonçalves J, Torres‐Oyarce L, Lemos LP, Vieira MAR, Bowler M, Gilmore MP, Perez NCA, Alves RR, Peres CA, Pérez‐Peña P, Mayor P. Congruence of local ecological knowledge (LEK)‐based methods and line‐transect surveys in estimating wildlife abundance in tropical forests. Methods Ecol Evol 2021. [DOI: 10.1111/2041-210x.13773] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Franciany Braga‐Pereira
- Departamento de Ecologia e Sistemática Universidade Federal da Paraíba João Pessoa Brazil
- Rede de Pesquisa para Estudos sobre Diversidade Conservação e Uso da Fauna na Amazônia (REDEFAUNA) Manaus Brazil
- Institut de Ciència i Tecnologia Ambientals Universitat Autònoma de Barcelona Barcelona Spain
- Department de Sanitat i Anatomia Animals Universitat Autònoma de Barcelona Barcelona Spain
| | - Thais Q. Morcatty
- Rede de Pesquisa para Estudos sobre Diversidade Conservação e Uso da Fauna na Amazônia (REDEFAUNA) Manaus Brazil
- Faculty of Humanities and Social Sciences Oxford Brookes University Oxford UK
- Instituto de Desenvolvimento Sustentável Mamirauá Estrada do Bexiga Tefé Brazil
| | - Hani R. El Bizri
- Rede de Pesquisa para Estudos sobre Diversidade Conservação e Uso da Fauna na Amazônia (REDEFAUNA) Manaus Brazil
- Instituto de Desenvolvimento Sustentável Mamirauá Estrada do Bexiga Tefé Brazil
- Comunidad de Manejo de Fauna Silvestre en la Amazonía y en Latinoamérica (COMFAUNA) Iquitos Peru
| | - Aline S. Tavares
- Núcleo de Estudos e Pesquisas das Cidades da Amazônia Brasileira Universidade Federal do Amazonas Manaus Brazil
| | - Carla Mere‐Roncal
- School of Environmental Science and Policy George Mason University Fairfax VA USA
| | - Carlos González‐Crespo
- Department de Sanitat i Anatomia Animals Universitat Autònoma de Barcelona Barcelona Spain
| | - Carolina Bertsch
- Laboratório de Manejo de Fauna Instituto Nacional de Pesquisas da Amazônia (INPA) Manaus Brazil
| | | | | | - Eduardo M. von Mühlen
- Departamento de Ecologia Universidade Federal do Rio Grande do Norte Natal Brazil
- Instituto Juruá Manaus Brazil
| | | | | | - Jhancy Segura Tamayo
- Servicio Nacional de Áreas Naturales Protegidas por el Estado (SERNANP) Urbanización Palomar Calle Lima Peru
| | - João Valsecchi
- Rede de Pesquisa para Estudos sobre Diversidade Conservação e Uso da Fauna na Amazônia (REDEFAUNA) Manaus Brazil
- Instituto de Desenvolvimento Sustentável Mamirauá Estrada do Bexiga Tefé Brazil
- Comunidad de Manejo de Fauna Silvestre en la Amazonía y en Latinoamérica (COMFAUNA) Iquitos Peru
| | - Jonas Gonçalves
- Laboratório de Manejo de Fauna Instituto Nacional de Pesquisas da Amazônia (INPA) Manaus Brazil
- Secretaria Executiva de Ciência Tecnologia e Inovação (SECTI/SEDECTI) Governo do Amazonas Manaus Brazil
| | | | - Lísley Pereira Lemos
- Rede de Pesquisa para Estudos sobre Diversidade Conservação e Uso da Fauna na Amazônia (REDEFAUNA) Manaus Brazil
- Instituto de Desenvolvimento Sustentável Mamirauá Estrada do Bexiga Tefé Brazil
| | - Marina A. R. Vieira
- Rede de Pesquisa para Estudos sobre Diversidade Conservação e Uso da Fauna na Amazônia (REDEFAUNA) Manaus Brazil
- RIVERS ERC Project Departamento de Ciencias Sociales Universidad Carlos III de Madrid Getafe (Madrid) Spain
| | - Mark Bowler
- School of Engineering, Arts, Science and Technology University of Suffolk Ipswich UK
| | - Michael P. Gilmore
- School of Environmental Science and Policy George Mason University Fairfax VA USA
| | | | - Rômulo Romeu Alves
- Departamento de Ecologia e Sistemática Universidade Federal da Paraíba João Pessoa Brazil
- Laboratory of Ethnobiology and Ethnoecology Universidade Estadual da Paraíba Campina Grande Brazil
| | - Carlos A. Peres
- Instituto Juruá Manaus Brazil
- School of Environmental Sciences University of East Anglia Norwich UK
| | - Pedro Pérez‐Peña
- Instituto de Investigaciones de la Amazonía Peruana (IIAP) Iquitos Peru
| | - Pedro Mayor
- Department de Sanitat i Anatomia Animals Universitat Autònoma de Barcelona Barcelona Spain
- Comunidad de Manejo de Fauna Silvestre en la Amazonía y en Latinoamérica (COMFAUNA) Iquitos Peru
- Museo de Culturas Indígenas Amazónicas Iquitos Peru
- Postgraduate Program in Animal Health and Production in Amazonia (PPGSPAA) Federal Rural University of the Amazon (UFRA) Belém Brazil
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Gillerot L, Grussu G, Condor-Golec R, Tavani R, Dargush P, Attorre F. Progress on incorporating biodiversity monitoring in REDD+ through national forest inventories. Glob Ecol Conserv 2021. [DOI: 10.1016/j.gecco.2021.e01901] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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27
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Gray REJ, Rodriguez LF, Lewis OT, Chung AYC, Ovaskainen O, Slade EM. Movement of forest‐dependent dung beetles through riparian buffers in Bornean oil palm plantations. J Appl Ecol 2021. [DOI: 10.1111/1365-2664.14049] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ross E. J. Gray
- Department of Zoology University of Oxford Oxford UK
- Department of Life Sciences Imperial College London Ascot UK
| | - Luisa F. Rodriguez
- Organismal and Evolutionary Biology Research Programme University of Helsinki Helsinki Finland
| | - Owen T. Lewis
- Department of Zoology University of Oxford Oxford UK
| | | | - Otso Ovaskainen
- Organismal and Evolutionary Biology Research Programme University of Helsinki Helsinki Finland
- Department of Biological and Environmental Science University of Jyväskylä Jyväskylä Finland
- Department of Biology Centre for Biodiversity Dynamics Norwegian University of Science and Technology Trondheim Norway
| | - Eleanor M. Slade
- Department of Zoology University of Oxford Oxford UK
- Asian School of the Environment Nanyang Technological University Singapore City Singapore
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28
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López-Baucells A, Yoh N, Rocha R, Bobrowiec PED, Palmeirim JM, Meyer CFJ. Optimizing bat bioacoustic surveys in human-modified Neotropical landscapes. ECOLOGICAL APPLICATIONS : A PUBLICATION OF THE ECOLOGICAL SOCIETY OF AMERICA 2021; 31:e02366. [PMID: 33938592 DOI: 10.1002/eap.2366] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Accepted: 01/15/2021] [Indexed: 06/12/2023]
Abstract
During the last decades, the use of bioacoustics as a non-invasive and cost-effective sampling method has greatly increased worldwide. For bats, acoustic surveys have long been known to complement traditional mist-netting, however, appropriate protocol guidelines are still lacking for tropical regions. Establishing the minimum sampling effort needed to detect ecological changes in bat assemblages (e.g., activity, composition, and richness) is crucial in view of workload and project cost constraints, and because detecting such changes must be reliable enough to support effective conservation management. Using one of the most comprehensive tropical bat acoustic data sets, collected in the Amazon, we assessed the minimum survey effort required to accurately assess the completeness of assemblage inventories and habitat selection in fragmented forest landscapes for aerial insectivorous bats. We evaluated a combination of 20 different temporal sampling schemes, which differed regarding number of hours per night, number of nights per site, and sampling only during the wet or dry season, or both. This was assessed under two different landscape scenarios: in primary forest fragments embedded in a matrix of secondary forest and in the same forest fragments, but after they had been re-isolated through clearing of the secondary forest. We found that the sampling effort required to achieve 90% inventory completeness varied considerably depending on the research aim and the landscape scenario evaluated, averaging ~80 and 10 nights before and after fragment re-isolation, respectively. Recording for more than 4 h per night did not result in a substantial reduction in the required number of sampling nights. Regarding the effects of habitat selection, except for assemblage composition, bat responses in terms of richness, diversity, and activity were similar across all sampling schemes after fragment re-isolation. However, before re-isolation, a minimum of four to six sampling hours per night after dusk and three to five nights of sampling per site were needed to detect significant effects that could otherwise go unnoticed. Based on our results, we propose guidelines that will aid to optimize sampling protocols for bat acoustic surveys in the Neotropics.
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Affiliation(s)
- Adrià López-Baucells
- Centre for Ecology, Evolution and Environmental Changes (cE3c), Faculdade de Ciências, Universidade de Lisboa, Lisbon, 1749-016, Portugal
- Natural Sciences Museum of Granollers, Av/Francesc Macià 51, Granollers, Catalonia, 08402, Spain
- Biological Dynamics of Forest Fragments Project (PDBFF), National Institute for Amazonian Research and Smithsonian Tropical Research Institute, Manaus, AM, 69011-970, Brazil
| | - Natalie Yoh
- Ecosystems and Environment Research Centre (EERC), School of Science, Engineering and Environment, University of Salford, Salford, M5 4WT, United Kingdom
- Durrell Institute of Conservation & Ecology (DICE), University of Kent, Canterbury, CT2 7NZ, United Kingdom
| | - Ricardo Rocha
- Centre for Ecology, Evolution and Environmental Changes (cE3c), Faculdade de Ciências, Universidade de Lisboa, Lisbon, 1749-016, Portugal
- Biological Dynamics of Forest Fragments Project (PDBFF), National Institute for Amazonian Research and Smithsonian Tropical Research Institute, Manaus, AM, 69011-970, Brazil
- CIBIO-InBIO, Research Center in Biodiversity and Genetic Resources, University of Porto, Vairão, 4485-661, Portugal
- CIBIO-InBIO, Research Center in Biodiversity and Genetic Resources, Institute of Agronomy, University of Lisbon, Lisbon, 1349-017, Portugal
| | - Paulo E D Bobrowiec
- Biological Dynamics of Forest Fragments Project (PDBFF), National Institute for Amazonian Research and Smithsonian Tropical Research Institute, Manaus, AM, 69011-970, Brazil
| | - Jorge M Palmeirim
- Centre for Ecology, Evolution and Environmental Changes (cE3c), Faculdade de Ciências, Universidade de Lisboa, Lisbon, 1749-016, Portugal
| | - Christoph F J Meyer
- Centre for Ecology, Evolution and Environmental Changes (cE3c), Faculdade de Ciências, Universidade de Lisboa, Lisbon, 1749-016, Portugal
- Biological Dynamics of Forest Fragments Project (PDBFF), National Institute for Amazonian Research and Smithsonian Tropical Research Institute, Manaus, AM, 69011-970, Brazil
- Ecosystems and Environment Research Centre (EERC), School of Science, Engineering and Environment, University of Salford, Salford, M5 4WT, United Kingdom
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29
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Drinkwater R, Williamson J, Clare EL, Chung AYC, Rossiter SJ, Slade E. Dung beetles as samplers of mammals in Malaysian Borneo-a test of high throughput metabarcoding of iDNA. PeerJ 2021; 9:e11897. [PMID: 34447624 PMCID: PMC8366524 DOI: 10.7717/peerj.11897] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Accepted: 07/13/2021] [Indexed: 11/20/2022] Open
Abstract
Invertebrate-derived DNA (iDNA) sampling in biodiversity surveys is becoming increasingly widespread, with most terrestrial studies relying on DNA derived from the gut contents of blood-feeding invertebrates, such as leeches and mosquitoes. Dung beetles (superfamily Scarabaeoidea) primarily feed on the faecal matter of terrestrial vertebrates and offer several potential benefits over blood-feeding invertebrates as samplers of vertebrate DNA. Importantly, these beetles can be easily captured in large numbers using simple, inexpensive baited traps, are globally distributed, and occur in a wide range of habitats. To build on the few existing studies demonstrating the potential of dung beetles as sources of mammalian DNA, we subjected the large-bodied, Bornean dung beetle (Catharsius renaudpauliani) to a controlled feeding experiment. We analysed DNA from gut contents at different times after feeding using qPCR techniques. Here, we first describe the window of DNA persistence within a dung beetle digestive tract. We found that the ability to successfully amplify cattle DNA decayed over relatively short time periods, with DNA copy number decreasing by two orders of magnitude in just 6 h. In addition, we sampled communities of dung beetles from a lowland tropical rainforest in Sabah, Malaysia, in order to test whether it is possible to identify vertebrate sequences from dung beetle iDNA. We sequenced both the gut contents from large dung beetle species, as well as whole communities of smaller beetles. We successfully identified six mammalian species from our samples, including the bearded pig (Sus barbatus) and the sambar deer (Rusa unicolor)—both vulnerable species on the IUCN red list. Our results represent the first use of dung beetle iDNA to sample Southeast Asian vertebrate fauna, and highlight the potential for dung beetle iDNA to be used in future biodiversity monitoring surveys.
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Affiliation(s)
- Rosie Drinkwater
- School of Biological and Chemical Sciences, Queen Mary University of London, London, United Kingdom
| | - Joseph Williamson
- School of Biological and Chemical Sciences, Queen Mary University of London, London, United Kingdom
| | - Elizabeth L Clare
- School of Biological and Chemical Sciences, Queen Mary University of London, London, United Kingdom
| | - Arthur Y C Chung
- Sabah Forestry Department, Forest Research Centre, Sandakan, Malaysia
| | - Stephen J Rossiter
- School of Biological and Chemical Sciences, Queen Mary University of London, London, United Kingdom
| | - Eleanor Slade
- Asian School of the Environment, Nanyang Technological University, Singapore City, Singapore.,Department of Zoology, University of Oxford, Oxford, United Kingdom
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30
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Nunes CA, Barlow J, França F, Berenguer E, Solar RRC, Louzada J, Leitão RP, Maia LF, Oliveira VHF, Braga RF, Vaz‐de‐Mello FZ, Sayer EJ. Functional redundancy of Amazonian dung beetles confers community‐level resistance to primary forest disturbance. Biotropica 2021. [DOI: 10.1111/btp.12998] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Cássio Alencar Nunes
- Departamento de Ecologia e Conservação Universidade Federal de Lavras Lavras, Minas Gerais Brazil
- Lancaster Environment Centre Lancaster University Lancaster, Lancashire UK
| | - Jos Barlow
- Departamento de Ecologia e Conservação Universidade Federal de Lavras Lavras, Minas Gerais Brazil
- Lancaster Environment Centre Lancaster University Lancaster, Lancashire UK
- MCTIC/Museu Paraense Emílio Goeldi Belém, Pará Brazil
| | - Filipe França
- Lancaster Environment Centre Lancaster University Lancaster, Lancashire UK
- Embrapa Amazônia Oriental Belém Brazil
| | - Erika Berenguer
- Lancaster Environment Centre Lancaster University Lancaster, Lancashire UK
- Environmental Change Institute University of Oxford Oxford UK
| | - Ricardo R. C. Solar
- Departamento de Genética, Ecologia e Evolução Instituto de Ciências Biológicas Universidade Federal de Minas Gerais Belo Horizonte, Minas Gerais Brazil
| | - Julio Louzada
- Departamento de Ecologia e Conservação Universidade Federal de Lavras Lavras, Minas Gerais Brazil
- Lancaster Environment Centre Lancaster University Lancaster, Lancashire UK
| | - Rafael P. Leitão
- Departamento de Genética, Ecologia e Evolução Instituto de Ciências Biológicas Universidade Federal de Minas Gerais Belo Horizonte, Minas Gerais Brazil
| | - Laís F. Maia
- Bio‐Protection Research Centre School of Biological Sciences University of Canterbury Christchurch New Zealand
| | - Victor H. F. Oliveira
- Departamento de Ecologia e Conservação Universidade Federal de Lavras Lavras, Minas Gerais Brazil
| | - Rodrigo Fagundes Braga
- Unidade Divinópolis Universidade do Estado de Minas Gerais Divinópolis, Minas Gerais Brazil
| | - Fernando Z. Vaz‐de‐Mello
- Departamento de Biologia e Zoologia Instituto de Biociências Universidade Federal de Mato Grosso Cuiabá, Mato Grosso Brazil
| | - Emma J. Sayer
- Lancaster Environment Centre Lancaster University Lancaster, Lancashire UK
- Smithsonian Tropical Research Institute Balboa, Ancon, Panama City Panama
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31
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Combining DNA and people power for healthy rivers: Implementing the STREAM community-based approach for global freshwater monitoring. Perspect Ecol Conserv 2021. [DOI: 10.1016/j.pecon.2021.03.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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32
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da Silva PG, Mota Souza JG, Neves FDS. Dung beetle β‐diversity across Brazilian tropical dry forests does not support the Pleistocene Arc hypothesis. AUSTRAL ECOL 2021. [DOI: 10.1111/aec.13080] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Pedro Giovâni da Silva
- Programa de Pós‐Graduação em Ecologia, Conservação e Manejo da Vida Silvestre Universidade Federal de Minas Gerais Belo Horizonte, Minas Gerais Brazil
| | | | - Frederico de Siqueira Neves
- Programa de Pós‐Graduação em Ecologia, Conservação e Manejo da Vida Silvestre Universidade Federal de Minas Gerais Belo Horizonte, Minas Gerais Brazil
- Departamento de Genética, Ecologia e Evolução Instituto de Ciências Biológicas Universidade Federal de Minas Gerais Belo Horizonte, Minas Gerais Brazil
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33
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eDNA sampled from stream networks correlates with camera trap detection rates of terrestrial mammals. Sci Rep 2021; 11:11362. [PMID: 34131168 PMCID: PMC8206079 DOI: 10.1038/s41598-021-90598-5] [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: 03/03/2021] [Accepted: 05/13/2021] [Indexed: 11/14/2022] Open
Abstract
Biodiversity monitoring delivers vital information to those making conservation decisions. Comprehensively measuring terrestrial biodiversity usually requires costly methods that can rarely be deployed at large spatial scales over multiple time periods, limiting conservation efficiency. Here we investigated the capacity of environmental DNA (eDNA) from stream water samples to survey terrestrial mammal diversity at multiple spatial scales within a large catchment. We compared biodiversity information recovered using an eDNA metabarcoding approach with data from a dense camera trap survey, as well as the sampling costs of both methods. Via the sampling of large volumes of water from the two largest streams that drained the study area, eDNA metabarcoding provided information on the presence and detection probabilities of 35 mammal taxa, 25% more than camera traps and for half the cost. While eDNA metabarcoding had limited capacity to detect felid species and provide individual-level demographic information, it is a cost-efficient method for large-scale monitoring of terrestrial mammals that can offer sufficient information to solve many conservation problems.
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34
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González TM, González-Trujillo JD, Muñoz A, Armenteras D. Differential effects of fire on the occupancy of small mammals in neotropical savanna-gallery forests. Perspect Ecol Conserv 2021. [DOI: 10.1016/j.pecon.2021.03.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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35
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Davies RW, Edwards DP, Medina-Uribe CA, Cárdenas-Bautista JS, Haugaasen T, Gilroy JJ, Edwards FA. Replacing low-intensity cattle pasture with oil palm conserves dung beetle functional diversity when paired with forest protection. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 283:112009. [PMID: 33508552 DOI: 10.1016/j.jenvman.2021.112009] [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: 09/03/2020] [Revised: 01/12/2021] [Accepted: 01/13/2021] [Indexed: 06/12/2023]
Abstract
Meeting rising demand for oil palm whilst minimizing the loss of tropical biodiversity and associated ecosystem functions is a core conservation challenge. One potential solution is focusing the expansion of high-yielding crops on presently low-yielding farmlands alongside protecting nearby tropical forests that can enhance provision of ecosystem functions. A key question is how this solution would impact invertebrate functional diversity. We focus on oil palm in the Colombian Llanos, where plantations are replacing improved cattle pastures and forest fragments, and on dung beetles, which play key functional roles in nutrient cycling and secondary seed dispersal. We show that functional richness and functional diversity of dung beetles is greater in oil palm than in cattle pasture, and that functional metrics did not differ between oil palm and remnant forest. The abundance-size class profile of dung beetles in oil palm was more similar to forest than to pasture, which had lower abundances of the smallest and largest dung beetles. The abundance of tunneling and rolling dung beetles did not differ between oil palm and forest, while higher forest cover increased the abundance of diurnal and generalist-feeding beetles in oil palm landscapes. This suggests that prioritizing agricultural development on low-yielding cattle pasture will have positive effects on functional diversity and highlights the need for forest protection to maintain ecosystem functioning within agricultural landscapes.
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Affiliation(s)
- Robert W Davies
- Department of Animal and Plant Sciences, University of Sheffield, Sheffield, UK.
| | - David P Edwards
- Department of Animal and Plant Sciences, University of Sheffield, Sheffield, UK
| | - Claudia A Medina-Uribe
- Instituto de Investigación de Recursos Biológicos Alexander von Humboldt, Carrera 8 # 15-08, Villa de Leyva, Boyacá, Colombia
| | - Johann S Cárdenas-Bautista
- Grupo de Investigación Biodiversidad y Conservación, Facultad de Ciencias, Universidad Pedagógica y Tecnológica de Colombia. Av. Central Del Norte # 115-39, Tunja, Boyacá, 150001, Colombia
| | - Torbjørn Haugaasen
- Faculty of Environmental Sciences and Natural Resource Management, Norwegian University of Life Sciences, Ås, Norway
| | - James J Gilroy
- School of Environmental Science, University of East Anglia, Norwich, NR4 7TJ, UK
| | - Felicity A Edwards
- Department of Animal and Plant Sciences, University of Sheffield, Sheffield, UK
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36
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Develey PF. Bird Conservation in Brazil: Challenges and practical solutions for a key megadiverse country. Perspect Ecol Conserv 2021. [DOI: 10.1016/j.pecon.2021.02.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
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Abstract
Identification of priority areas for conservation is crucial for the maintenance and protection of biodiversity, particularly in tropical forests where biodiversity continues to be lost at alarming rates. Surveys and research on umbrella species can provide efficient and effective approaches to identify potential areas for conservation at small geographical scales. Army ants of the genus Eciton are keystone species in neotropical forests due to their major role as top predators and due to the numerous vertebrate- and invertebrate associated species that depend upon their colonies for survival. These associates range from the iconic army ant-following birds to a wide range of arthropod groups, some of which have evolved intricate morphological, behavioural and/or chemical strategies to conceal their presence and integrate into the colony life. Furthermore, Eciton colonies require large forested areas that support a diverse leaf litter prey community and several field-based and genetic studies have demonstrated the negative consequences of forest fragmentation for the long-term maintenance of these colonies. Therefore, Eciton species will not only act as umbrella for their associates but also for many other species in neotropical forests, in particular for those that require a large extent of forest. This review summarises past and recent accounts of the main taxonomic groups found associated with Eciton colonies, as well research assessing the impact of forest fragmentation on this army ant, to encourage the adoption of Eciton army ants as umbrella species for the identification of priority areas for conservation and assessments of the effect of disturbance in neotropical forests.
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38
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Assessing different methods for measuring mammal diversity in two southern African arid ecosystems. MAMMAL RES 2021. [DOI: 10.1007/s13364-021-00562-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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39
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Ahmad A, Gary D, . R, . S, . S, Putra W, Sagita N, Adirahmanta SN, Miller AE. Leveraging local knowledge to estimate wildlife densities in bornean tropical rainforests. WILDLIFE BIOLOGY 2021. [DOI: 10.2981/wlb.00771] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Affiliation(s)
- Abrar Ahmad
- A. Ahmad (https://orcid.org/0000-0002-2568-7641) ✉ , Rodiansyah, Sinta, Srifitria, W. Putra, N. Sagita and A. E. Miller, Yayasan Planet Indonesia, Pontianak, West Kalimantan, Indonesia. Sinta also at: Jalan Perdamaian Kompl
| | - Demi Gary
- AA, AEM and D. Gary, Planet Indonesia – 241 Selma, St. Louis, MO, USA. DG also at: 279 G Street SW, Washington DC, USA
| | - Rodiansyah .
- A. Ahmad (https://orcid.org/0000-0002-2568-7641) ✉ , Rodiansyah, Sinta, Srifitria, W. Putra, N. Sagita and A. E. Miller, Yayasan Planet Indonesia, Pontianak, West Kalimantan, Indonesia. Sinta also at: Jalan Perdamaian Kompl
| | - Sinta .
- A. Ahmad (https://orcid.org/0000-0002-2568-7641) ✉ , Rodiansyah, Sinta, Srifitria, W. Putra, N. Sagita and A. E. Miller, Yayasan Planet Indonesia, Pontianak, West Kalimantan, Indonesia. Sinta also at: Jalan Perdamaian Kompl
| | - Srifitria .
- A. Ahmad (https://orcid.org/0000-0002-2568-7641) ✉ , Rodiansyah, Sinta, Srifitria, W. Putra, N. Sagita and A. E. Miller, Yayasan Planet Indonesia, Pontianak, West Kalimantan, Indonesia. Sinta also at: Jalan Perdamaian Kompl
| | - Wahyu Putra
- A. Ahmad (https://orcid.org/0000-0002-2568-7641) ✉ , Rodiansyah, Sinta, Srifitria, W. Putra, N. Sagita and A. E. Miller, Yayasan Planet Indonesia, Pontianak, West Kalimantan, Indonesia. Sinta also at: Jalan Perdamaian Kompl
| | - Novia Sagita
- A. Ahmad (https://orcid.org/0000-0002-2568-7641) ✉ , Rodiansyah, Sinta, Srifitria, W. Putra, N. Sagita and A. E. Miller, Yayasan Planet Indonesia, Pontianak, West Kalimantan, Indonesia. Sinta also at: Jalan Perdamaian Kompl
| | | | - Adam E. Miller
- A. Ahmad (https://orcid.org/0000-0002-2568-7641) ✉ , Rodiansyah, Sinta, Srifitria, W. Putra, N. Sagita and A. E. Miller, Yayasan Planet Indonesia, Pontianak, West Kalimantan, Indonesia. Sinta also at: Jalan Perdamaian Kompl
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40
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Birds and Bioenergy within the Americas: A Cross-National, Social–Ecological Study of Ecosystem Service Tradeoffs. LAND 2021. [DOI: 10.3390/land10030258] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Although renewable energy holds great promise in mitigating climate change, there are socioeconomic and ecological tradeoffs related to each form of renewable energy. Forest-related bioenergy is especially controversial, because tree plantations often replace land that could be used to grow food crops and can have negative impacts on biodiversity. In this study, we examined public perceptions and ecosystem service tradeoffs between the provisioning services associated with cover types associated with bioenergy crop (feedstock) production and forest habitat-related supporting services for birds, which themselves provide cultural and regulating services. We combined a social survey-based assessment of local values and perceptions with measures of bioenergy feedstock production impacts on bird habitat in four countries: Argentina, Brazil, Mexico, and the USA. Respondents in all countries rated birds as important or very important (83–99% of respondents) and showed lower enthusiasm for, but still supported, the expansion of bioenergy feedstocks (48–60% of respondents). Bioenergy feedstock cover types in Brazil and Argentina had the greatest negative impact on birds but had a positive impact on birds in the USA. In Brazil and Mexico, public perceptions aligned fairly well with the realities of the impacts of potential bioenergy feedstocks on bird communities. However, in Argentina and the USA, perceptions of bioenergy impacts on birds did not match well with the data. Understanding people’s values and perceptions can help inform better policy and management decisions regarding land use changes.
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41
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Edwards FA, Edwards DP, Hamer KC, Fayle TM. Tropical land-use change alters trait-based community assembly rules for dung beetles and birds. Oecologia 2021; 195:705-717. [PMID: 33559003 PMCID: PMC7940334 DOI: 10.1007/s00442-020-04829-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Accepted: 12/09/2020] [Indexed: 12/04/2022]
Abstract
Tropical rainforest disturbance and conversion are critical drivers of biodiversity loss. A key knowledge gap is understanding the impacts of habitat modification on mechanisms of community assembly, which are predicted to respond differently between taxa and across spatial scales. We use a null model approach to detect trait assembly of species at local- and landscape-scales, and then subdivide communities with different habitat associations and foraging guilds to investigate whether the detection of assembly mechanisms varies between groups. We focus on two indicator taxa, dung beetles and birds, across a disturbance gradient of primary rainforest, selectively logged rainforest, and oil palm plantations in Borneo, Southeast Asia. Random community assembly was predominant for dung beetles across habitats, whereas trait convergence, indicative of environmental filtering, occurred across the disturbance gradient for birds. Assembly patterns at the two spatial scales were similar. Subdividing for habitat association and foraging guild revealed patterns hidden when focusing on the overall community. Dung beetle forest specialists and habitat generalists showed opposing assembly mechanisms in primary forest, community assembly of habitat generalists for both taxa differed with disturbance intensity, and insectivorous birds strongly influenced overall community assembly relative to other guilds. Our study reveals the sensitivity of community assembly mechanisms to anthropogenic disturbance via a shift in the relative contribution of stochastic and deterministic processes. This highlights the need for greater understanding of how habitat modification alters species interactions and the importance of incorporating species' traits within assessments.
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Affiliation(s)
- Felicity A Edwards
- School of Biology, University of Leeds, Leeds, LS2 9JT, UK.
- Department of Animal and Plant Sciences, University of Sheffield, Sheffield, S10 2TN, UK.
| | - David P Edwards
- Department of Animal and Plant Sciences, University of Sheffield, Sheffield, S10 2TN, UK
| | - Keith C Hamer
- School of Biology, University of Leeds, Leeds, LS2 9JT, UK
| | - Tom M Fayle
- Biology Centre of the Czech Academy of Sciences, Institute of Entomology, Ceske Budejovice, 370 05, Czech Republic
- Institute of Tropical Biology and Conservation, Universiti Malaysia Sabah, Kota Kinabalu, Sabah, Malaysia
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42
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Edwards FA, Massam MR, Cosset CCP, Cannon PG, Haugaasen T, Gilroy JJ, Edwards DP. Sparing land for secondary forest regeneration protects more tropical biodiversity than land sharing in cattle farming landscapes. Curr Biol 2021; 31:1284-1293.e4. [PMID: 33482111 DOI: 10.1016/j.cub.2020.12.030] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 10/19/2020] [Accepted: 12/21/2020] [Indexed: 11/29/2022]
Abstract
Effectively managing farming to meet food demand is vital for the future of biodiversity.1,2 Increasing yields on existing farmland can allow the abandonment (sparing) of low-yielding areas that subsequently recover as secondary forest.2-5 A key question is whether such "secondary sparing" conserves biodiversity more effectively than retaining wildlife-friendly habitat within farmland ("land sharing"). Focusing on the Colombian Choco-Andes, a global hotspot of threatened biodiversity,6 and on cattle farming, we examined the outcomes of secondary sparing and land sharing via simulated scenarios that maintained constant landscape-wide production and equal within-pasture yield: (1) for species and functional diversity of dung beetles and birds; (2) for avian phylogenetic diversity; and (3) across different stages of secondary forest regeneration, relative to spared primary forests. Sparing older secondary forests (15-30 years recovery) promotes substantial species, functional, and phylogenetic (birds only) diversity benefits for birds and dung beetles compared to land sharing. Species of conservation concern had higher occupancy estimates under land-sparing compared to land-sharing scenarios. Spared secondary forests accumulated equivalent diversity to primary forests for dung beetles within 15 years and within 15-30 years for birds, highlighting the need for longer term protection to maximize the biodiversity gains of secondary sparing. Promoting the recovery and protection of large expanses of secondary forests under the land-sparing model provides a critical mechanism for protecting tropical biodiversity, with important implications for concurrently assisting in the delivery of global targets to restore 350 million hectares of forested landscapes.7,8.
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Affiliation(s)
- Felicity A Edwards
- Department of Animal and Plant Sciences, University of Sheffield, Western Bank, Sheffield S10 2TN, UK.
| | - Mike R Massam
- Department of Animal and Plant Sciences, University of Sheffield, Western Bank, Sheffield S10 2TN, UK
| | - Cindy C P Cosset
- Department of Animal and Plant Sciences, University of Sheffield, Western Bank, Sheffield S10 2TN, UK
| | - Patrick G Cannon
- Department of Animal and Plant Sciences, University of Sheffield, Western Bank, Sheffield S10 2TN, UK
| | - Torbjørn Haugaasen
- Faculty of Environmental Sciences and Natural Resource Management, Norwegian University of Life Sciences, Ås, Norway
| | - James J Gilroy
- School of Environmental Science, University of East Anglia, Norwich Research Park, Norwich NR4 7TJ, UK
| | - David P Edwards
- Department of Animal and Plant Sciences, University of Sheffield, Western Bank, Sheffield S10 2TN, UK.
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Greenspace sites conserve taxonomic and functional diversity of dung beetles in an urbanized landscape in the Brazilian Cerrado. Urban Ecosyst 2021. [DOI: 10.1007/s11252-021-01093-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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44
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Silva JLD, Silva RJD, Fernandes IM, Sousa WOD, Vaz-de-Mello FZ. Species composition and community structure of dung beetles (Coleoptera: Scarabaeidae: Scarabaeinae) compared among savanna and forest formations in the southwestern Brazilian Cerrado. ZOOLOGIA 2020. [DOI: 10.3897/zoologia.37.e58960] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Although dung beetles are important members of ecological communities and indicators of ecosystem quality, species diversity, and how it varies over space and habitat types, remains poorly understood in the Brazilian Cerrado. We compared dung beetle communities among plant formations in the Serra Azul State Park (SASP) in the state of Mato Grosso, Brazil. Sampling (by baited pitfall and flight-interception traps) was carried out in 2012 in the Park in four habitat types: two different savanna formations (typical and open) and two forest formations (seasonally deciduous and gallery). A total of 5,400 individuals collected comprised 57 species in 22 genera. Typical savanna had the greatest species richness and abundance, followed by open savanna and deciduous forest, while the gallery forest had the fewest species but high abundance. Tunnelers (one of three main nesting behavior guilds) showed the greatest richness and abundance (except in the gallery forest, where one dweller species was extremely abundant) in all plant formations. We found that species richness and abundance of the dung beetle community are influenced by differences among plant formations. Habitat heterogeneity in the different plant formations along with anthropic influences (fire, habitat fragmentation) are cited as important factors that explain guild and species richness and distribution patterns. These results emphasize the importance of protected areas, such as SASP, for the maintenance and conservation of species diversity in the Brazilian Cerrado.
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Correa CMA, Puker A, Abot AR. Impacts of Exotic Pasture Establishment on Dung Beetle Assemblages (Coleoptera: Scarabaeidae: Scarabaeinae) in the Brazilian Cerrado. ENVIRONMENTAL ENTOMOLOGY 2020; 49:1335-1344. [PMID: 33159442 DOI: 10.1093/ee/nvaa132] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Indexed: 06/11/2023]
Abstract
The Brazilian Cerrado is the second largest Neotropical biome and an important hotspot of biodiversity. However, land use change in this ecosystem is producing landscapes with modified natural environments and anthropogenic environments, such as exotic pastures. In this study, we evaluated how conversion of native Cerrado vegetation to exotic pastures affects the dung beetle assemblages (Coleoptera: Scarabaeidae: Scarabaeinae). We sampled dung beetles in four areas of Cerrado (sensu stricto) and in four areas of exotic pastures (Urochloa spp.) in Aquidauana, Mato Grosso do Sul, Brazil. In all, 7,544 individuals from 43 species of dung beetles were collected, and 19 species were found in both the Cerrado and exotic pastures. The abundance and species richness of dung beetles were higher in Cerrado remnants. Species composition differed between Cerrado and exotic pastures, where 11 species were classified as specialists of Cerrado, 10 species were considered specialists of exotic pastures, and 6 species were habitat generalists. Roller beetles were most negatively affected by exotic pasture establishment. We demonstrated that exotic pasture establishment has a negative impact on dung beetle assemblages in Brazilian Cerrado. The decline in abundance and richness of roller beetles has important implications for the understanding of ecosystem functioning because it can reduce the ecological functions performed by dung beetle assemblages in exotic pastures. Finally, the high number of dung beetle species shared between Cerrado and exotic pastures suggests that the Cerrado remnants is a fundamental requirement for the conservation of biodiversity of dung beetles in exotic pastures in the Brazilian Cerrado.
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Affiliation(s)
- César M A Correa
- Universidade Estadual de Mato Grosso do Sul, Aquidauana, Mato Grosso do Sul, Brazil
| | - Anderson Puker
- Instituto Federal de Educação, Ciência e Tecnologia de Rondônia, Colorado do Oeste, Rondônia, Brazil
- Instituto Federal de Educação, Ciência e Tecnologia de Mato Grosso, Guarantã do Norte, Mato Grosso, Brazil
| | - Alfredo R Abot
- Universidade Estadual de Mato Grosso do Sul, Aquidauana, Mato Grosso do Sul, Brazil
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Ferreira KR, Puker A, Correa CMA. The Attraction of Amazonian Dung Beetles (Coleoptera: Scarabaeidae: Scarabaeinae) to the Feces of Omnivorous Mammals Is Dependent on Their Diet: Implications for Ecological Monitoring. ENVIRONMENTAL ENTOMOLOGY 2020; 49:1383-1392. [PMID: 32960219 DOI: 10.1093/ee/nvaa106] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Indexed: 06/11/2023]
Abstract
The immense sampling effort used in ecological research on dung beetles (Coleoptera: Scarabaeidae: Scarabaeinae) has required large amounts of human feces to conduct experiments in the field. Thus, the amount of human feces available can be an important limiting factor for research. Therefore, dung from large omnivorous mammals, such as pig, has been used to reduce this limitation. Here, we evaluated how the type of diet can influence the attractiveness of omnivorous-mammal feces to Amazonian dung beetles. We sampled dung beetles in 10 fragments of Amazon rainforest in July 2018 (dry season) and March 2019 (rainy season), using pitfall traps baited with swill pig dung (household waste-based diet), grain pig dung (maize+soybean-based diet), and human feces (control) in Juína, Mato Grosso, Brazil. In all, 2,080 individuals from 51 species of dung beetles were collected. Between the pig dung evaluated, higher total abundance and species richness was captured with grain pig dung. However, the species composition and community structure were similar between pig dung types. Additionally, grain pig dung captured total species richness, species composition, and structure similar to that for human feces. Thus, although grain pig dung did not sample total abundance similar to human feces, this type of dung can be efficient for an accurate survey of the total species richness, species composition, and structure of dung beetles in the Amazon rainforest.
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Affiliation(s)
- Kleyton R Ferreira
- Instituto Federal de Educação, Ciência e Tecnologia de Mato Grosso, Juína, Mato Grosso, Brazil
| | - Anderson Puker
- Instituto Federal de Educação, Ciência e Tecnologia de Mato Grosso, Guarantã do Norte, Mato Grosso, Brazil
| | - César M A Correa
- Universidade Estadual de Mato Grosso do Sul, Aquidauana, Mato Grosso do Sul, Brazil
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47
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Targeting Conservation Actions at Species Threat Response Thresholds. Trends Ecol Evol 2020; 36:216-226. [PMID: 33293193 DOI: 10.1016/j.tree.2020.11.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2020] [Revised: 11/03/2020] [Accepted: 11/10/2020] [Indexed: 11/24/2022]
Abstract
Given the failure of the world's governments to improve the status of biodiversity by 2020, a new strategic plan for 2030 is being developed. In order to be successful, a step-change is needed to not just simply halt biodiversity loss, but to bend the curve of biodiversity loss to stable or increasing species' populations. Here, we propose a framework that quantifies species' responses across gradients of threat intensity to implement more efficient and better targeted conservation actions. Our framework acknowledges the variation in threat intensities as well as the differences among species in their capacity to respond, and is implemented at a relevant scale for national and international policy-making.
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48
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Thomas‐Walters L, Vieira S, Jiménez V, Monteiro D, Ferreira B, Smith RJ, Veríssimo D. Challenges in the impact evaluation of behaviour change interventions: The case of sea turtle meat and eggs in São Tomé. PEOPLE AND NATURE 2020. [DOI: 10.1002/pan3.10162] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Affiliation(s)
- Laura Thomas‐Walters
- Durrell Institute of Conservation and Ecology School of Anthropology and Conservation University of Kent Canterbury UK
| | - Sara Vieira
- Programa Tatô Largo do Bom Despacho Cidade de São Tomé São Tomé Sao Tome and Principe
| | - Victor Jiménez
- Programa Tatô Sítio da Pedragosa Barão de São João Portugal
| | - Domingas Monteiro
- Programa Tatô Largo do Bom Despacho Cidade de São Tomé São Tomé Sao Tome and Principe
| | | | - Robert J. Smith
- Durrell Institute of Conservation and Ecology School of Anthropology and Conservation University of Kent Canterbury UK
| | - Diogo Veríssimo
- Department of Zoology University of Oxford Oxford UK
- San Diego Zoo Institute for Conservation Research Escondido CA USA
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49
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Metcalf OC, Barlow J, Devenish C, Marsden S, Berenguer E, Lees AC. Acoustic indices perform better when applied at ecologically meaningful time and frequency scales. Methods Ecol Evol 2020. [DOI: 10.1111/2041-210x.13521] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Oliver C. Metcalf
- Conservation, Ecology, Evolution and Behaviour (CEEB) Ecology and Environment Research Centre (EERC) Manchester Metropolitan University Manchester UK
| | - Jos Barlow
- Departamento de Biologia Universidade Federal de Lavras Lavras Brazil
- Lancaster Environment Centre Lancaster University Lancaster UK
- MCTIC/Museu Paraense Emílio Goeldi Belém Brazil
| | - Christian Devenish
- Conservation, Ecology, Evolution and Behaviour (CEEB) Ecology and Environment Research Centre (EERC) Manchester Metropolitan University Manchester UK
| | - Stuart Marsden
- Conservation, Ecology, Evolution and Behaviour (CEEB) Ecology and Environment Research Centre (EERC) Manchester Metropolitan University Manchester UK
| | - Erika Berenguer
- Lancaster Environment Centre Lancaster University Lancaster UK
- Environmental Change Institute School of Geography and the Environment University of Oxford Oxford UK
| | - Alexander C. Lees
- Conservation, Ecology, Evolution and Behaviour (CEEB) Ecology and Environment Research Centre (EERC) Manchester Metropolitan University Manchester UK
- Cornell Lab of Ornithology Cornell University Ithaca NY USA
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50
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Correa CM, Da Silva PG, Puker A, Abot AR. Spatiotemporal patterns of taxonomic and functional β‐diversity of dung beetles in native and introduced pastures in the Brazilian Pantanal. AUSTRAL ECOL 2020. [DOI: 10.1111/aec.12963] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- César M.A. Correa
- Universidade Estadual de Mato Grosso do Sul Aquidauana Mato Grosso do Sul79200‐000Brazil
| | - Pedro G. Da Silva
- Programa de Pós‐Graduação em Ecologia Conservação e Manejo da Vida Silvestre Universidade Federal de Minas Gerais Belo Horizonte Minas GeraisBrazil
| | - Anderson Puker
- Instituto Federal de EducaçãoCiência e Tecnologia de Mato Grosso Guarantã do Norte Mato GrossoBrazil
- Instituto Federal de EducaçãoCiência e Tecnologia de Rondônia Colorado do Oeste, Guarantã do NorteRondônia Brazil
| | - Alfredo R. Abot
- Universidade Estadual de Mato Grosso do Sul Aquidauana Mato Grosso do Sul79200‐000Brazil
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