Living on the edge: Forest cover threshold effect on endangered maned sloth occurrence in Atlantic Forest
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.biocon.2019.108264 http://hdl.handle.net/11449/201298 |
Resumo: | Habitat loss and the isolation of remaining habitats are undoubtedly the two greatest threats to biodiversity conservation, especially for the maned sloth, due to its ecological restrictions. In this study, we identified a critical threshold of forest cover for maned sloth occurrence and explored the effects of other local and landscape variables. We sampled 68 sites, where we searched for the maned sloth and collected local habitat variables. We calculated the percentage of forest cover and open areas, assessing the appropriated scale through model selection. We used occupancy models and model selection methods to identify the threshold and assess occupancy and detection probabilities. The occupancy probability of the maned sloth is 0.97, but it decreases abruptly at 35% of forest cover, reaching zero in areas with less than 20% of forest cover. The two landscape variables are the most important predictors of sloth occupancy, based on the cumulative weight of evidence, were: Forest cover (78%) and Open areas cover (46%); the latter influencing negatively maned sloth occupancy. This is the first attempt to identify the habitat requirements of the threatened maned sloth in a fragmented area using landscape and local variables. Our results imply that conservation of maned sloth will benefit from an increase in the amount of native forest at the landscape scale. Given difficulties in the creation of new public protected areas, this improvement could be achieved via the recovery of areas located in private properties that are protected by the Brazilian Forest Code. |
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Living on the edge: Forest cover threshold effect on endangered maned sloth occurrence in Atlantic ForestBradypus torquatusHabitat lossLandscape EcologyPilosaThreatenedXenarthraHabitat loss and the isolation of remaining habitats are undoubtedly the two greatest threats to biodiversity conservation, especially for the maned sloth, due to its ecological restrictions. In this study, we identified a critical threshold of forest cover for maned sloth occurrence and explored the effects of other local and landscape variables. We sampled 68 sites, where we searched for the maned sloth and collected local habitat variables. We calculated the percentage of forest cover and open areas, assessing the appropriated scale through model selection. We used occupancy models and model selection methods to identify the threshold and assess occupancy and detection probabilities. The occupancy probability of the maned sloth is 0.97, but it decreases abruptly at 35% of forest cover, reaching zero in areas with less than 20% of forest cover. The two landscape variables are the most important predictors of sloth occupancy, based on the cumulative weight of evidence, were: Forest cover (78%) and Open areas cover (46%); the latter influencing negatively maned sloth occupancy. This is the first attempt to identify the habitat requirements of the threatened maned sloth in a fragmented area using landscape and local variables. Our results imply that conservation of maned sloth will benefit from an increase in the amount of native forest at the landscape scale. Given difficulties in the creation of new public protected areas, this improvement could be achieved via the recovery of areas located in private properties that are protected by the Brazilian Forest Code.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Rufford FoundationCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Laboratório de Ecologia e Conservação Departamento de Biologia Geral Instituto de Ciências Biológicas Universidade Federal de Minas Gerais, Av. Presidente Antônio Carlos, 6627Laboratório de Ecologia Espacial e Conservação (LEEC) Departamento de Ecologia Universidade Estadual Paulista - UNESP, Av. 24 A, 1515Instituto de Pesquisa e Conservação de Tamanduás no Brazil Conjunto Porto das Barcas, sala 130Colorado State University Department of Fish Wildlife and Conservation BiologyDepartamento de Biologia Faculdade de Filosofia Ciências e Letras de Ribeirão Preto Universidade de São Paulo, Av. Bandeirantes, 3900Laboratório de Ecologia Espacial e Conservação (LEEC) Departamento de Ecologia Universidade Estadual Paulista - UNESP, Av. 24 A, 1515FAPESP: # 312045/2013-1FAPESP: #2013/50421-2FAPESP: #312292/2016-3CNPq: 141571/2017-9Rufford Foundation: 21498-1CAPES: 88881.188493/2018-01Universidade Federal de Minas Gerais (UFMG)Universidade Estadual Paulista (Unesp)Conjunto Porto das Barcasand Conservation BiologyUniversidade de São Paulo (USP)Santos, Paloma Marques [UNESP]Bailey, Larissa LynnRibeiro, Milton Cezar [UNESP]Chiarello, Adriano GarciaPaglia, Adriano Pereira2020-12-12T02:29:01Z2020-12-12T02:29:01Z2019-12-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1016/j.biocon.2019.108264Biological Conservation, v. 240.0006-3207http://hdl.handle.net/11449/20129810.1016/j.biocon.2019.1082642-s2.0-850744847384158685235743119Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengBiological Conservationinfo:eu-repo/semantics/openAccess2021-10-23T10:49:04Zoai:repositorio.unesp.br:11449/201298Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462021-10-23T10:49:04Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Living on the edge: Forest cover threshold effect on endangered maned sloth occurrence in Atlantic Forest |
title |
Living on the edge: Forest cover threshold effect on endangered maned sloth occurrence in Atlantic Forest |
spellingShingle |
Living on the edge: Forest cover threshold effect on endangered maned sloth occurrence in Atlantic Forest Santos, Paloma Marques [UNESP] Bradypus torquatus Habitat loss Landscape Ecology Pilosa Threatened Xenarthra |
title_short |
Living on the edge: Forest cover threshold effect on endangered maned sloth occurrence in Atlantic Forest |
title_full |
Living on the edge: Forest cover threshold effect on endangered maned sloth occurrence in Atlantic Forest |
title_fullStr |
Living on the edge: Forest cover threshold effect on endangered maned sloth occurrence in Atlantic Forest |
title_full_unstemmed |
Living on the edge: Forest cover threshold effect on endangered maned sloth occurrence in Atlantic Forest |
title_sort |
Living on the edge: Forest cover threshold effect on endangered maned sloth occurrence in Atlantic Forest |
author |
Santos, Paloma Marques [UNESP] |
author_facet |
Santos, Paloma Marques [UNESP] Bailey, Larissa Lynn Ribeiro, Milton Cezar [UNESP] Chiarello, Adriano Garcia Paglia, Adriano Pereira |
author_role |
author |
author2 |
Bailey, Larissa Lynn Ribeiro, Milton Cezar [UNESP] Chiarello, Adriano Garcia Paglia, Adriano Pereira |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Universidade Federal de Minas Gerais (UFMG) Universidade Estadual Paulista (Unesp) Conjunto Porto das Barcas and Conservation Biology Universidade de São Paulo (USP) |
dc.contributor.author.fl_str_mv |
Santos, Paloma Marques [UNESP] Bailey, Larissa Lynn Ribeiro, Milton Cezar [UNESP] Chiarello, Adriano Garcia Paglia, Adriano Pereira |
dc.subject.por.fl_str_mv |
Bradypus torquatus Habitat loss Landscape Ecology Pilosa Threatened Xenarthra |
topic |
Bradypus torquatus Habitat loss Landscape Ecology Pilosa Threatened Xenarthra |
description |
Habitat loss and the isolation of remaining habitats are undoubtedly the two greatest threats to biodiversity conservation, especially for the maned sloth, due to its ecological restrictions. In this study, we identified a critical threshold of forest cover for maned sloth occurrence and explored the effects of other local and landscape variables. We sampled 68 sites, where we searched for the maned sloth and collected local habitat variables. We calculated the percentage of forest cover and open areas, assessing the appropriated scale through model selection. We used occupancy models and model selection methods to identify the threshold and assess occupancy and detection probabilities. The occupancy probability of the maned sloth is 0.97, but it decreases abruptly at 35% of forest cover, reaching zero in areas with less than 20% of forest cover. The two landscape variables are the most important predictors of sloth occupancy, based on the cumulative weight of evidence, were: Forest cover (78%) and Open areas cover (46%); the latter influencing negatively maned sloth occupancy. This is the first attempt to identify the habitat requirements of the threatened maned sloth in a fragmented area using landscape and local variables. Our results imply that conservation of maned sloth will benefit from an increase in the amount of native forest at the landscape scale. Given difficulties in the creation of new public protected areas, this improvement could be achieved via the recovery of areas located in private properties that are protected by the Brazilian Forest Code. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-12-01 2020-12-12T02:29:01Z 2020-12-12T02:29:01Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1016/j.biocon.2019.108264 Biological Conservation, v. 240. 0006-3207 http://hdl.handle.net/11449/201298 10.1016/j.biocon.2019.108264 2-s2.0-85074484738 4158685235743119 |
url |
http://dx.doi.org/10.1016/j.biocon.2019.108264 http://hdl.handle.net/11449/201298 |
identifier_str_mv |
Biological Conservation, v. 240. 0006-3207 10.1016/j.biocon.2019.108264 2-s2.0-85074484738 4158685235743119 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Biological Conservation |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
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1799965724088729600 |