Uma nova espécie de Hylodes (Anura, Hylodidae) da Serra do Japi: descrição, modo reprodutivo e comunicação

• Ano de defesa: 2013
• Autor(a) principal: Sá, Fábio Perin de [UNESP]
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Estadual Paulista (Unesp)
• Palavras-chave em Português: Anura; Anuro; Animais - Comunicação; Anfíbio; Rã; Morfologia (Animais); Japi, Serra do (SP)
• Link de acesso: http://hdl.handle.net/11449/108745

The Hylodes species from Serra do Japi mountain range, included in the Hylodes lateristrigatus group, is a torrent frog endemic to this mountain range in the São Paulo state, Brazil; it exhibits territorial males and elaborated courtship behavior. It is morphologically similar to H. amnicola, H. ornatus, H. perere, and H. sazimai; however, distinguishable by its color pattern, advertisement call, and DNA sequences. Divided into two chapters, we present data on taxonomy, phylogenetic systematic, natural history, and conservation status, besides information on the reproductive mode and communication of this hylodid. In the chapter I we present the descriptions of the new species, including the description of its tadpoles. Moreover, in this chapter we provide, for the first time for a Hylodes species, details of the spawning, traits of the fertilized eggs, and the behavior of the female helping to conceal the underwater constructed chamber after oviposition. In the chapter II we study the communication of this species of torrent frog, revealing the most complex visual displays repertoire among amphibian anurans, including five new displays that we describe. Never before registered for frogs, we also describe the individualized use of the vocal sacs by the males, according to the receiver’s position, and the visual-tactile multimodal communication performed by females during the courtship. Finally, concluding the chapter II, a review on visual displays in Neotropical torrent frogs highlights the behavioral diversity currently known for the family Hylodidae. Our research evidences that it is important to conduct more studies comprising: (1) integrative taxonomy and phylogeny within the genus Hylodes, combining data on morphology, vocalizations, geographic distribution, and DNA sequences, thereby revealing potential cryptic species and, as a consequence, the true diversity of the genus; and (2) the visual communication in the genus Hylodes...