Reavaliação do canto de anúncio de Scinax similis (Cochran, 1952) (Anura: Hylidae)

Abstract

In the amphibian class, anurans stand out for their vocal repertoire, which allows us to better understand their identity, social behavior and reproductive biology, in addition to their social interactions. Among the sounds emitted, the advertisement call is a behavior in which the male emits vocalizations with the aim of attracting the female for mating. In the present study, we reviewed the advertisement call of Scinax similis based on new recordings made in the Sete Cidades National Park, located in the northern region of the state of Piauí, Northeastern Brazil. We observed that the advertisement call of this species consists of a single type of multipulsed note of relatively short duration. Furthermore, we note the presence of two frequency bands. The dominant frequency can be in the lower or upper band, or vary between both throughout the call emissions. Our evaluation and discussion highlight song characteristics that differ from what has been previously described in the literature, in addition to providing more details about the song of this species.