Use este identificador para citar ou linkar para este item: http://repositorio.bc.ufg.br/handle/ri/12167
Tipo do documento: Artigo
Título: Reproductive biology of an endemic Physalaemus of the Brazilian Atlantic forest, and the trade-off between clutch and egg size in terrestrial breeders of the P. signifer group
Autor: Pupin, Nadya Caroline
Gasparini, João Luiz
Bastos, Rogério Pereira
Haddad, Célio Fernando Baptista
Prado, Cynthia Peralta de Almeida
Abstract: Physalaemus crombiei is a small foam-nesting frog endemic to the Atlantic forest. It is a member of the P. signifer group known only from its type locality in Santa Teresa, State of Espírito Santo, and from another locality in the State of Bahia, Brazil. Most Physalaemus species are aquatic breeders, and species in the P. signifer group are the only ones exhibiting a tendency toward terrestrial reproduction in the genus. Here we describe the reproductive period, breeding site and reproductive modes of P. crombiei from a third population in the Atlantic forest, southeastern Brazil. We also investigated reproductive effort and size–fecundity relationships in females. Reproductive traits were compared to other species in the genus Physalaemus, especially those included in the P. signifer group. Physalaemus crombiei is a prolonged breeder, reproducing throughout the year with a peak of activity during the most rainy months (October–March). Males called from the humid forest floor and eggs embedded in foam nests were deposited in the water as well as on the humid floor amidst the leaf litter, or inside fallen leaves or tree holes containing rainwater on the forest floor. As expected, P. crombiei exhibited three alternative reproductive modes, as described for other species of the P. signifer group. The number of eggs produced per female varied from 91 to 250. Female body size is positively correlated both with ovary mass and clutch size (number of eggs per clutch). Variation in the number and size of eggs observed in Physalaemus species may be explained not only by female size, but also by the terrestrial reproductive mode exhibited by the species in the P. signifer group.
Palavras-chave: Amphibia
Size–fecundity relationships
Reproductive modes
Reproductive effort
País: Outros
Instituição: The British Herpetological Society
Unidade acadêmica: Instituto de Ciências Biológicas - ICB (RG)
Citação: PUPIN, Nadya Carolina; GASPARINI, João Luiz; BASTOS, Rogério P.; HADDAD, Célio F. B.; PRADO, Cynthia P. A. Reproductive biology of an endemic Physalaemus of the Brazilian Atlantic forest, and the trade-off between clutch and egg size in terrestrial breeders of the P. signifer group. Herpetological Journal, London, v. 20, n. 3, p. 147-152, July 2010.
Tipo de acesso: Acesso Aberto
URI: http://repositorio.bc.ufg.br/handle/ri/12167
Data de publicação: Jul-2010
Aparece nas coleções:ICB - Artigos publicados em periódicos

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