Occurrence and conservation of the Vulnerable titi monkey Callicebus melanochir in fragmented landscapes of the Atlantic Forest hotspot

Autor(es)

Costa-Araujo, Rodrigo ^{[1, 2]} ; Luis Regolin, Andre ^{[3, 4]} ; Martello, Felipe ^[5] ; Pedro Souza-Alves, Joao ^{[6, 7]} ; Hrbek, Tomas ^[2] ; Cezar Ribeiro, Milton ^[4]

Afiliação do(s) autor(es)

^[1] Inst Nacl de Pesquisas da Amazonia, Manaus, Amazonas - Brazil

^[2] Univ Fed Amazonas, Lab Evolucao & Genet Anim, Ave Rodrigo Octavio Jordao Ramos 3000, BR-69077000 Manaus, Amazonas - Brazil

^[3] Colorado State Univ, Dept Fish Wildlife & Conservat Biol, Ft Collins, CO 80523 - USA

^[4] Univ Estadual Paulista, Lab Ecol Espacial & Conservacao, Rio Claro - Brazil

^[5] Univ Fed Sao Carlos, Sao Carlos - Brazil

^[6] Univ Fed Pernambuco, Programa Posgrad Biol Anim, Recife, PE - Brazil

^[7] Univ Fed Pernambuco, Lab Ecol Comportamento & Conservacao, Recife, PE - Brazil

• Tipo de documento: Artigo Científico
• Fonte: ORYX; v. 55, n. 6, p. 916-923, NOV 2021.
• Citações Web of Science: 1

Resumo

Tropical forest hotspots have a high diversity of species but have lost > 70% of their original vegetation cover and are characterized by a multitude of small and isolated fragments. Paradoxically, conservation actions in these areas are still mainly focused on protection of large tracts of forests, a strategy now infeasible because of the small area of forest remnants. Here we use the Vulnerable black-handed titi monkey Callicebus melanochir as a model to study the effects of habitat loss, fragmentation and degradation on arboreal mammals and to provide insights for science-driven conservation in fragmented landscapes in tropical forest hotspots. We surveyed 38 Atlantic Forest fragments in Bahia State, Brazil and assessed the effects of patch area, quality and visibility, and landscape connectivity on the occurrence of our model species. Patch area was the single best model explaining species occurrence. Nonetheless, patch quality and visibility, and landscape connectivity, positively affect occurrence. In addition to patch area, patch quality, patch visibility and landscape connectivity are useful for predicting the occurrence of arboreal mammals in the fragments of tropical forest hotspots. We encourage the assessment of habitat quality (based on remotely sensed vegetation indices) and habitat visibility (based on digital elevation models) to improve discoverability of arboreal mammal populations and selection of fragments for conservation purposes across fragmented landscapes of tropical forest hotspots. Large remnants of tropical forest hotspots are scarce and therefore we require baseline data to support conservation actions and management in small forest fragments. (AU)

• Processo FAPESP: 13/50421-2 - Novos métodos de amostragem e ferramentas estatísticas para pesquisa em biodiversidade: integrando ecologia de movimento com ecologia de população e comunidade
• Beneficiário: Milton Cezar Ribeiro
• Modalidade de apoio: Auxílio à Pesquisa - Regular