Detectable call types in short-term passive acoustic monitoring of Atlantic forest and Caatinga primates
- 1Programa de Pós-Graduação em Biologia Animal, Departamento de Zoologia, Laboratório de Ecologia, Comportamento e Conservação, Universidade Federal de Pernambuco, Av. Prof. Moraes Rego, 1235 - Cidade Universitária, Recife, PE 50670-901 Brazil
- 2Instituto SOS Caatinga, Povoado de Caboclo, São José da Tapera, AL 57445-000 Brazil
Abstract
Arboreal primates rely heavily on acoustic communication, making them ideal candidates for passive acoustic monitoring (PAM). Here, we investigated the detectability of vocalisations from Alouatta belzebul, Callithrix jacchus, Saimiri spp, and Sapajus flavius in three fragments of Atlantic Forest and two fragments of Caatinga Forest in northeastern Brazil. We recorded each area for 48 h per month over 7 months, placing one audiomoth recorder at each site. Our results show that all species were detectable through PAM, with varying detection rates: 8/13 known call types for C. jacchus, 14/31 for S. flavius, 2/4 for A. belzebul, and 6/27 for Saimiri spp. Not all calls from their vocal repertoire were detected. Call detectability was influenced by species, habitat, time of day, and month. We emphasise the importance of considering behavioural, dietary, and home-range patterns when designing PAM protocols for primates. Our findings provide valuable insights for optimising PAM studies and highlight the need for continued basic research on vocal repertoire descriptions to improve conservation efforts.
Supplementary Information: The online version contains supplementary material available at https://doi.org/10.1007/s10329-026-01280-1.
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BibTeX
@article{lacerda2026detectable,
title = {{Detectable call types in short-term passive acoustic monitoring of Atlantic forest and Caatinga primates}},
author = {Juliana Carneiro de Lacerda and Ana Luiza L. Matte and Geovana Lima and Rick Taynor and Marcos Araújo and Bruna Marcela Teixeira de Andrade and Bárbara Lins Caldas de Moraes and Bruna Bezerra},
journal = {Primates; Journal of Primatology},
year = {2026},
month = jul,
doi = {10.1007/s10329-026-01280-1},
url = {https://doi.org/10.1007/s10329-026-01280-1},
note = {CC BY 4.0},
}
RIS
TY - JOUR
TI - Detectable call types in short-term passive acoustic monitoring of Atlantic forest and Caatinga primates
AU - Juliana Carneiro de Lacerda
AU - Ana Luiza L. Matte
AU - Geovana Lima
AU - Rick Taynor
AU - Marcos Araújo
AU - Bruna Marcela Teixeira de Andrade
AU - Bárbara Lins Caldas de Moraes
AU - Bruna Bezerra
PY - 2026
DA - 2026/07/20
JO - Primates; Journal of Primatology
DO - 10.1007/s10329-026-01280-1
UR - https://doi.org/10.1007/s10329-026-01280-1
AB - Arboreal primates rely heavily on acoustic communication, making them ideal candidates for passive acoustic monitoring (PAM). Here, we investigated the detectability of vocalisations from Alouatta belzebul, Callithrix jacchus, Saimiri spp, and Sapajus flavius in three fragments of Atlantic Forest and two fragments of Caatinga Forest in northeastern Brazil. We recorded each area for 48 h per month over 7 months, placing one audiomoth recorder at each site. Our results show that all species were detectable through PAM, with varying detection rates: 8/13 known call types for C. jacchus, 14/31 for S. flavius, 2/4 for A. belzebul, and 6/27 for Saimiri spp. Not all calls from their vocal repertoire were detected. Call detectability was influenced by species, habitat, time of day, and month. We emphasise the importance of considering behavioural, dietary, and home-range patterns when designing PAM protocols for primates. Our findings provide valuable insights for optimising PAM studies and highlight the need for continued basic research on vocal repertoire descriptions to improve conservation efforts. Supplementary Information: The online version contains supplementary material available at https://doi.org/10.1007/s10329-026-01280-1.
SN - 0032-8332
SN - 1610-7365
ER -