Abundance and population density of Callithrix flaviceps Thomas, 1903 (PRIMATES, CALLITRICHIDAE) in the Private Natural Heritage Reserve Fazenda Macedônia, Ipaba, MG and surroundings

• Ano de defesa: 2023
• Autor(a) principal: Corrêa, Thales Claussem Vicente
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: eng
• Instituição de defesa: Universidade Federal de Viçosa; Biologia Animal
• Palavras-chave em Português: Callithrix flaviceps - Habitat (Ecologia) - Conservação; Animais em extinção; Primatas - Conservação - Ipaba (MG); Conservação da Natureza
• Link de acesso: https://locus.ufv.br//handle/123456789/31162; https://doi.org/10.47328/ufvbbt.2023.360

Callithrix flaviceps, commonly known as the Buffy-headed marmoset, is a primate species endemic to the Southeastern Atlantic Forest of Brazil. Its range is one of the smallest among platyrrhine species. Unfortunately, this species is critically endangered and considered one of the 25 most threatened primate species in the world. The population decline is largely attributed to habitat fragmentation, competition, hybridization with other invasive species, and susceptibility to yellow fever. The objective of this research was to estimate the abundance and population density of Buffy-headed marmosets in the RPPN Fazenda Macedônia, located along the Doce River in Ipaba, MG, and its surroundings. Population data were collected using the playback method in randomized sampling units and analyzed using the N-mixture model. The results indicate that the population of this species in the region of RPPN Fazenda Macedônia has an estimated average of 257.3 individuals (95% CI = 205.5-309 ind.) and an average population density of 11.4 individuals/km² (95% CI = 9.1-13.7 ind./km²). During the sampling, five hybrid marmosets were identified, highlighting the need for management strategies to prevent them from becoming a threat to the local population. This study provides a hopeful outlook for the conservation of the species by revealing the numbers of an important population of Buffy-headed marmosets living in a protected area and indicating that the RPPN Fazenda Macedônia has been a valuable area for the species' survival. Keywords: Callithrix flaviceps - Habitat (Ecology) – Conservation. Endangered animals. Primates - Conservation - Ipaba (MG).