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Biologia reprodutiva da cobra-coral Erythrolamprus aesculapii Linnaeus (Colubridae), no Sudeste do Brasil

1996; Sociedade Brasileira de Zoologia; Volume: 13; Issue: 3 Linguagem: Inglês

10.1590/s0101-81751996000300022

ISSN

1806-969X

Autores

Otávio Augusto Vuolo Marques,

Tópico(s)

Turtle Biology and Conservation

Resumo

ERYTHROUMPRUSAESCUUPIl LiNNAEUS (COLUBRIDAE) lN THE SOUTHEASTERN BRAZIL.Dissection of 286 specimens of the "false" coral snake Erythrolamprus aesculapii Linnaeus, 1766, combined with data on captive individuais, provided information on the reproductive biology of this colubrid snake.Adult females (li snout-vent length '" 74.5cm) attain larger body size than males (li SVL = 62.6).Clutch size ranged from one to eight eggs and was correlated with maternal body size.Neonates measured 20.2-22.5cmSVL and weighed 5.1-5.8g.Males attain sexual maturity earlier than females.Reproduction seems to be aseasonal, with vitellogenesis occurring throughout the year.Apparently the growth rate of follicles decreases in the dry season, possibly due to lower temperatures during this period.Multiple c\utches were recorded in captive snakes.Foraging strategies and availability ofprey may explain continuous reproduction in E. aesculapii.However, data for other related snakes suggest that continuous reproduction is conservative in the Xenodontini.

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