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Redescription of the Advertisement Call of Five Species of Thoropa (Anura, Cycloramphidae), Including Recordings of Rare and Endangered Species

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Nunes-de-Almeida, Carlos H. L. ; Assis, Clodoaldo L. ; Feio, Renato N. ; Toledo, Luis Felipe
Número total de Autores: 4
Tipo de documento: Artigo Científico
Fonte: PLoS One; v. 11, n. 9 SEP 12 2016.
Citações Web of Science: 1

Frogs of the genus Thoropa comprise six endemic Brazilian species on the Eastern side of the country. Little is known about their natural history, especially about their acoustic communication. Therefore, aiming to provide an overview of their vocalizations, we analyzed and redescribed male advertisement calls of three living and two possibly extinct species. The smaller species, T. petropolitana and T. lutzi, produce simple calls (one single note) with a higher frequency range than the remaining larger ones. On the other hand, the larger species present complex calls, with more than one note: T. megatympanum calls have three notes, T. taophora calls have four notes, and T. miliaris calls varies from three to six notes. Population snout-vent length negatively correlated with peak of dominant frequency as expected. However, highlighted differences between two populations of T. lutzi, which could indicate need of further taxonomic evaluation of those lineages. Peculiar morphology, such as the absence of vocal sacs and slits, may have contributed to their call variation and highly banded frequency structure. If the observed population differences reflect species-level differences, T. lutzi may be classified as a critically endangered species, as T. petropolitana. Furthermore, we provided a suggestion to an unusual behavior in frogs: calling with the mouth open in the smaller species of the genus. (AU)

Processo FAPESP: 14/23388-7 - Comunicação e sistemas sensoriais em anuros da Mata Atlântica
Beneficiário:Luis Felipe de Toledo Ramos Pereira
Linha de fomento: Auxílio à Pesquisa - Regular
Processo FAPESP: 13/09964-2 - Reconstrução filogenética com base em morfologia interna e externa do gênero Thoropa cope, 1865 (Anura, Cycloramphidae)
Beneficiário:Carlos Henrique Luz Nunes de Almeida
Linha de fomento: Bolsas no Brasil - Mestrado