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Provedor de dados:  Rev. Bras. Zool.
País:  Brazil
Título:  Reproductive biology of Echinanthera cyanopleura (Serpentes: Dipsadidae) in southern Brazil
Autores:  Zanella,Noeli
Cechin,Sonia Z.
Data:  2010-02-01
Ano:  2010
Palavras-chave:  Reproduction
Serpents
Sexual dimorphism
Resumo:  The reproductive cycles of snakes can be influenced by many factors, both biotic and abiotic, and information about these factors can contribute significantly to knowledge of the biology of many species. Here, we present data on the reproductive biology (body size, sexual dimorphism and female reproductive cycle) of the forest-dwelling colubrid Echinanthera cyanopleura (Cope, 1885), based on analyses of 128 specimens preserved in collections and originating from the states of Paraná, Santa Catarina, and Rio Grande do Sul in southern Brazil. The snout-vent length of females was significantly greater than in males. The tail length of mature females was greater than in males, although this difference was not significant. Vitellogenesis occurs from August to December and eggs were found in greater frequency from October through December. Juveniles were found in larger numbers beginning in February, indicating that recruitment occurs from January to April. The reproductive cycle of this species is seasonal, which is usual for oviparous colubrids of temperate areas of Brazil.
Tipo:  Info:eu-repo/semantics/article
Idioma:  Inglês
Identificador:  http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702010000100005
Editor:  Sociedade Brasileira de Zoologia
Relação:  10.1590/S1984-46702010000100005
Formato:  text/html
Fonte:  Zoologia (Curitiba) v.27 n.1 2010
Direitos:  info:eu-repo/semantics/openAccess
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