SciELO - Scientific Electronic Library Online

vol.47 número13 índice de autoresíndice de assuntospesquisa de artigos
Home Pagelista alfabética de periódicos  

Serviços Personalizados




Links relacionados


Papéis Avulsos de Zoologia

versão impressa ISSN 0031-1049versão On-line ISSN 1807-0205


WOGEL, Henrique  e  POMBAL JR., José P.. Comportamento reprodutivo e seleção sexual em Dendropsophus bipunctatus (Spix, 1824) (Anura, Hylidae). Pap. Avulsos Zool. (São Paulo) [online]. 2007, vol.47, n.13, pp.165-174. ISSN 0031-1049.

Studies on sexual selection in anuran amphibians show that some morphological and/or behavioral characteristics, such as size, vocalizations, and chorus tenure can influence male mating success. The goals of this study were (1) to describe the breeding behavior of males and females of Dendropsophus bipunctatus, (2) to assess male mating success, and (3) to verify the female preferences for specific acoustical properties performed by males through the two-choice calls trials. During courtship activities, males performed a stationary calling position followed by frequent small switches of calling sites that could enhance mating success, as signals were emitted from different directions. Larger or heavier males did not obtain a larger number of females, whereas chorus tenure was the only variable significantly related to the reproductive success of males. We observed high percentage fertilization rate among all size and mass ratios of males and females, as well as size and mass assortative mating. The results of the two choice trials show that females of D. bipunctatus prefer signals produced at high call-rate than lower ones.

Palavras-chave : Dendropsophus bipunctatus; reproductive behavior; sexual selection; females preference trials; Atlantic rain forest.

        · resumo em Português     · texto em Português     · Português ( pdf epdf )


Creative Commons License Todo o conteúdo deste periódico, exceto onde está identificado, está licenciado sob uma Licença Creative Commons