Annual and daily patterns of calling activity in male Scinax fuscomarginatus (Anura: Hylidae) from Central Brazil
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2020-12
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Resumo
Bioacoustics is an effective way of recording detailed data during population surveys and monitoring. In the
present study, we used an automated digital recorder (ADR) to describe the temporal variation in the calling activity of Scinax
fuscomarginatus (Lutz, 1925) in central Brazil. We also evaluated the role of climatic variables (air temperature and precipitation)
on calling activity by using a Generalized Additive Model (GAM). We conducted the recordings at five ponds in the
Cerrado savanna of Rio Verde Municipality, in Goiás state between November 2013 and October 2014. The analysis of the
43.2 hours of acoustic recording showed that S. fuscomarginatus has a prolonged breeding pattern. The ADR provides a finescale
description of the nocturnal calling pattern, as well as the oscillations between the rainy and dry seasons. The results
of the analytical model also indicate that calling patterns were related to minimum (but not maximum) air temperatures
and precipitation, which may be related to their reproductive and thermoregulatory requirements. Based on these findings,
we conclude that the ADR method has potentially valuable applications for the collection of data on the natural history of
anuran species, as well as supplying important insights for conservation initiatives.
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Acoustic survey, Vocalization behavior, Anurans, Seasonal variability, Automated recording, Breeding period, Phenology
Citação
SOUZA, Antonio Olímpio de; OLIVEIRA, Seixas Rezende; PROTO, Gardênia Dias; BASTOS, Rogério Pereira; MORAIS, Alessandro Ribeiro de. Annual and daily patterns of calling activity in male Scinax fuscomarginatus (Anura: Hylidae) from Central Brazil. Zoologia, Curitiba, v. 37, e54148 , 2020. DOI: 10.3897/zoologia.37.e54148. Disponível em: https://www.scielo.br/j/zool/a/9WYq9DrXtq7DbbVRDKQTfNj/?lang=en. Acesso em: 08 mar. 2023.