The Herpetological Journal
The Herpetological Journal is the Society's prestigious quarterly scientific journal. Articles are listed in Biological Abstracts, Current Awareness in Biological Sciences,Current Contents, Science Citation Index, and Zoological Record.
ISSN 0268-0130
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pdf 02. Reproductive traits of two sympatric viviparous skinks (Mabuya macrorhyncha and Mabuya agilis) in a Brazilian restinga habitat
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Open Access
pp.43-53
Authors: Carlos Frederico Duarte Rocha And Davor Vrcibradic
Abstract: The reproductive cycles, fat body cycles and some life-history traits of the sympatric viviparous skinks Mabuya macrorhyncha and M. agilis were compared in a seasonal "restinga" habitat of south-eastern Brazil. Both male and female reproductive and fat body cycles are very similar between species, with gestation lasting 9-12 months and parturition occurring during the early wet season. Clutch size of M. macrorhyncha was smaller than that of M. agilis. Females mature at a larger size in M. macrorhyncha than in M. agilis, but males of both species appear to mature at similar sizes. In both species, females are larger than males, but the latter have proportionately larger heads. Reproductive traits of M. agilis are typical of Neotropical Mabuya, but those of M. macrorhyncha have some peculiarities, one of which (small clutch size) is believed to result from constraints imposed by its morphological adaptation (i.e. relatively flattened body plan) to bromelicolous habits.
Keywords: Reproduction, life history, Mabuya, Brazilian skink
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