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Estimating primate population densities: the systematic use of playbacks along transects in population surveys.
Gestich, Carla C; Caselli, Christini B; Nagy-Reis, Mariana B; Setz, Eleonore Z F; da Cunha, Rogério G T.
Afiliação
  • Gestich CC; Departamento de Biologia Animal, Universidade Estadual de Campinas, Campinas, São Paulo, Brazil.
  • Caselli CB; Departamento de Ciências Biológicas, Universidade Federal Rural de Pernambuco, Recife, Pernambuco, Brazil.
  • Nagy-Reis MB; Departamento de Biologia Animal, Universidade Estadual de Campinas, Campinas, São Paulo, Brazil.
  • Setz EZ; Departamento de Biologia Animal, Universidade Estadual de Campinas, Campinas, São Paulo, Brazil.
  • da Cunha RG; Instituto de Ciências da Natureza, Universidade Federal de Alfenas, Alfenas, Minas Gerais, Brazil.
Am J Primatol ; 79(2): 1-9, 2017 Feb.
Article em En | MEDLINE | ID: mdl-27464028
Accurate measures of animal population densities are essential to assess their status, demography, and answer ecological questions. Among several methods proposed to collect abundance data, line transect sampling is used the most. The assumptions required to obtain accurate density estimates through this method, however, are rarely met when studying primates. As most primate species are vocally active, density estimates can be improved by associating transect sampling with playback point counts to scan the entire study area. Yet, attention to playback procedure and data collection design is necessary. Here, we describe a protocol to assess primate densities using playback and test its application on surveys of Callicebus nigrifrons, a small Neotropical primate that shows site fidelity and active vocal behavior. We list important steps and discuss precautions that should be considered, from the adjustments in the recordings in the lab to field procedures in the playback broadcasting sessions. Prior to the surveys, we conducted playback trials with three habituated wild groups at three forest remnants to test their response to the playback stimuli at different distances. Based on these trials, we defined the radius distance covered by the playback sessions. Then, we conducted two surveys in 12 forest remnants, in the northeast of São Paulo State Brazil. The results of density estimates were consistent between the two surveys. As the playback survey protocol we described has proved to be a simple and useful tool for surveying vocal primate and generated reliable data, we suggest that it is a good alternative method to estimate density of species, particularly for those that are responsive to playbacks and show site fidelity.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Primatas / Vocalização Animal Tipo de estudo: Risk_factors_studies Limite: Animals País/Região como assunto: America do sul / Brasil Idioma: En Revista: Am J Primatol Ano de publicação: 2017 Tipo de documento: Article País de afiliação: Brasil País de publicação: Estados Unidos
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Primatas / Vocalização Animal Tipo de estudo: Risk_factors_studies Limite: Animals País/Região como assunto: America do sul / Brasil Idioma: En Revista: Am J Primatol Ano de publicação: 2017 Tipo de documento: Article País de afiliação: Brasil País de publicação: Estados Unidos