Snake assemblage from Serra do Sudeste, Pampa Biome in Southern Brazil

Arlete B. Outeiral, Rafael L. Balestrin, Lize H. Cappellari, Thales de Lema, Vanda Lúcia Ferreira


Serra do Sudeste, located in Southern Campos and included in the Pampa biome, displays a high biological importance in Brazil. The vegetation is made up of a mosaic of pasture transition zones and Semideciduous Seasonal Forest, with most of the area strongly threatened. In this context, the aim of the present study was to assess the diversity of local snake communities using several capture methods. Natural history aspects, activity patterns, habitat use, and the diet of some species are discussed. The snake community is made up of 33 species, representing more than one third of the species of the known species for the state of Rio Grande do Sul, and the highest species richness observed in areas influenced by temperate climates in neotropical regions. Bothrops pubescens (Cope, 1870) and Philodryas patagoniensis (Girard, 1858) presented the highest relative abundance. The active search and resident collector methods were the best sampling methods for measuring species richness.

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