Clutch size in populations and species of cnemidophorines (Squamata: Teiidae) on the eastern coast of Brazil

Anais da Academia Brasileira de Ciências

Vanderlaine A. Menezes¹  Carlos F.d. Rocha¹ 

关键词: clutch size;    Ameivula;    reproduction;    restinga;    tamanho da ninhada;    Ameivula;    reprodução;    restinga;   

DOI  :  10.1590/0001-37652014112212

来源: SciELO

【 摘 要 】

We analyzed some reproductive aspects of 16 coastal populations, belonging to five lizard species (A. ocellifera, A. abaetensis, A. nativo, A. littoralis and C. lacertoides) from different restinga habitats along the eastern coast of Brazil. This study aimed to evaluate to what extent the reproductive aspects vary geographically and among species. For each female, we recorded the number of vitellogenic follicles, size and color of the largest follicle, presence and size of corpora lutea, and number and size of oviductal eggs. Clutch size of almost all coastal populations/species of Ameivula had little variation and most clutches were composed of two eggs. There was a significant relationship between female size and the mean clutch size when females from different species were pooled. Mean egg volume, among species, varied from 420 to 655 mm3. Relative clutch mass varied from 0.129 to 0.159 and did not differ significantly among species. We concluded that the five coastal species studied (four bisexuals and one parthenogenetic) had similar reproductive characteristics. Most of them presented multiple clutches, low clutch size and low relative clutch mass, similar to other species in the genus and to unisexual and bisexual species of the Teiidae family.

【 授权许可】

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