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Semper-Pascual A, Bischof R, Milleret C, Beaudrot L, Vallejo-Vargas AF, Ahumada JA, Akampurira E, Bitariho R, Espinosa S, Jansen PA, Kiebou-Opepa C, Moreira Lima MG, Martin EH, Mugerwa B, Rovero F, Salvador J, Santos F, Uzabaho E, Sheil D. Occupancy winners in tropical protected forests: a pantropical analysis. Proc Biol Sci 2022; 289:20220457. [PMID: 35858066 PMCID: PMC9277235 DOI: 10.1098/rspb.2022.0457] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
The structure of forest mammal communities appears surprisingly consistent across the continental tropics, presumably due to convergent evolution in similar environments. Whether such consistency extends to mammal occupancy, despite variation in species characteristics and context, remains unclear. Here we ask whether we can predict occupancy patterns and, if so, whether these relationships are consistent across biogeographic regions. Specifically, we assessed how mammal feeding guild, body mass and ecological specialization relate to occupancy in protected forests across the tropics. We used standardized camera-trap data (1002 camera-trap locations and 2-10 years of data) and a hierarchical Bayesian occupancy model. We found that occupancy varied by regions, and certain species characteristics explained much of this variation. Herbivores consistently had the highest occupancy. However, only in the Neotropics did we detect a significant effect of body mass on occupancy: large mammals had lowest occupancy. Importantly, habitat specialists generally had higher occupancy than generalists, though this was reversed in the Indo-Malayan sites. We conclude that habitat specialization is key for understanding variation in mammal occupancy across regions, and that habitat specialists often benefit more from protected areas, than do generalists. The contrasting examples seen in the Indo-Malayan region probably reflect distinct anthropogenic pressures.
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Affiliation(s)
- Asunción Semper-Pascual
- Faculty of Environmental Sciences and Natural Resource Management, Norwegian University of Life Sciences, Ås, Norway
| | - Richard Bischof
- Faculty of Environmental Sciences and Natural Resource Management, Norwegian University of Life Sciences, Ås, Norway
| | - Cyril Milleret
- Faculty of Environmental Sciences and Natural Resource Management, Norwegian University of Life Sciences, Ås, Norway
| | - Lydia Beaudrot
- Program in Ecology and Evolutionary Biology, Department of BioSciences, Rice University, Houston, USA
| | - Andrea F. Vallejo-Vargas
- Faculty of Environmental Sciences and Natural Resource Management, Norwegian University of Life Sciences, Ås, Norway
| | - Jorge A. Ahumada
- Moore Center for Science, Conservation International, Arlington, VA, USA
| | - Emmanuel Akampurira
- Institute of Tropical Forest Conservation, Mbarara University of Science and Technology, Kabale, Uganda,Conflict Research Group, Ghent University, Belgium
| | - Robert Bitariho
- Institute of Tropical Forest Conservation, Mbarara University of Science and Technology, Kabale, Uganda
| | - Santiago Espinosa
- Facultad de Ciencias, Universidad Autónoma de San Luis Potosí, San Luis Potosí, Mexico,Escuela de Biología, Pontificia Universidad Católica del Ecuador, Quito, Ecuador
| | - Patrick A. Jansen
- Smithsonian Tropical Research Institute, Panama City, Panama,Wildlife Ecology and Conservation Group, Wageningen University, Wageningen, The Netherlands
| | - Cisquet Kiebou-Opepa
- Wildlife Conservation Society - Congo Program, Brazzaville, Republic of the Congo,Nouabalé-Ndoki Foundation, Brazzaville, Republic of the Congo
| | - Marcela Guimarães Moreira Lima
- Biogeography of Conservation and Macroecology Laboratory, Institute of Biological Sciences, Universidade Federal do Pará, Pará, Brazil
| | - Emanuel H. Martin
- Department of Wildlife Management, College of African Wildlife Management, Mweka, Moshi, Tanzania
| | - Badru Mugerwa
- Department of Ecological Dynamics, Leibniz Institute for Zoo and Wildlife Research, Berlin, Germany,Department of Ecology, Technische Universität Berlin, Berlin, Germany
| | - Francesco Rovero
- Department of Biology, University of Florence, Florence, Italy,MUSE-Museo delle Scienze, Trento, Italy
| | | | | | | | - Douglas Sheil
- Faculty of Environmental Sciences and Natural Resource Management, Norwegian University of Life Sciences, Ås, Norway,Forest Ecology and Forest Management Group, Wageningen University and Research, Wageningen, The Netherlands,Center for International Forestry Research, Bogor, Indonesia
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Sánchez-Clavijo LM, Martínez-Callejas SJ, Acevedo-Charry O, Diaz-Pulido A, Gómez-Valencia B, Ocampo-Peñuela N, Ocampo D, Olaya-Rodríguez MH, Rey-Velasco JC, Soto-Vargas C, Ochoa-Quintero JM. Differential reporting of biodiversity in two citizen science platforms during COVID-19 lockdown in Colombia. BIOLOGICAL CONSERVATION 2021; 256:109077. [PMID: 35702146 PMCID: PMC9186113 DOI: 10.1016/j.biocon.2021.109077] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Revised: 03/04/2021] [Accepted: 03/10/2021] [Indexed: 05/26/2023]
Abstract
The COVID-19 pandemic highlighted the potential of using data from long-term citizen science projects to answer questions about the impacts of unexpected events on biodiversity. We evaluate the suitability of data from the citizen science platforms iNaturalist and eBird to describe the effects of the "anthropause" on biodiversity observation in Colombia. We compared record distribution according to human footprint, sampling behaviors, overall and conservation priority species composition during the strictest phase of the COVID-19 lockdown in 2020 to the same periods in 2015-2019. Overall participation in both platforms during the lockdown was high when compared to previous years, but records were concentrated on highly-transformed regions, had lower sampling efforts, and fewer species were recorded. For eBird, species composition was similar to that observed in previous years, and records of species of conservation concern declined in proportion to the decrease in overall species richness across samples. For iNaturalist, the species pool sampled each year remained too dissimilar for comparisons. Once differences in observer behaviors are accounted for, data from these platforms can be used in unplanned comparisons of relatively common species, in regions with high levels of human transformation, and at narrowly defined geographical contexts. To increase the potential of citizen science to monitor rarer species, more natural areas, or be used in large-scale analyses, we need to build and strengthen more diverse networks of observers that can further promote decentralization, democratization, and cost-effectiveness in biodiversity research.
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Affiliation(s)
| | | | - Orlando Acevedo-Charry
- Instituto de Investigación de Recursos Biológicos Alexander von Humboldt, Bogotá, Colombia
| | - Angélica Diaz-Pulido
- Instituto de Investigación de Recursos Biológicos Alexander von Humboldt, Bogotá, Colombia
| | - Bibiana Gómez-Valencia
- Instituto de Investigación de Recursos Biológicos Alexander von Humboldt, Bogotá, Colombia
| | - Natalia Ocampo-Peñuela
- Instituto de Investigación de Recursos Biológicos Alexander von Humboldt, Bogotá, Colombia
| | - David Ocampo
- Instituto de Investigación de Recursos Biológicos Alexander von Humboldt, Bogotá, Colombia
| | | | | | - Carolina Soto-Vargas
- Instituto de Investigación de Recursos Biológicos Alexander von Humboldt, Bogotá, Colombia
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