Composition and natural history of snakes from Etá farm region, Sete Barras, south-eastern Brazil


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Abstract
Approximately 140 snake species are known to occur in the Atlantic Forest with nearly half being endemic to this ecoregion. However, the Atlantic forest is one of the most threatened tropical ecoregions, with only 16% of its original area remaining as forest. This extensive habitat loss must have had a negative effect on its snake fauna. Indeed, 53% of the threatened snakes of Brazil occur in the Atlantic forest. Therefore, basic natural history information that can potentially contribute to the conservation of Atlantic forest snakes are urgently needed. Here the natural history of a snake assemblage at Etá Farm region, Sete Barras municipality, south-eastern Brazil is described, and a visual guide and an identification key provided that can be used by researchers and local people to identify snakes from this region. Most of the species found in the field use both open areas and forests, are primarily terrestrial, present diurnal activity, and include frogs in their diet. A higher number of enlarged follicles, eggs, and/or embryos were recorded during the warm and rainy season. Seventeen different types of defensive tactics were recorded in the species found in the field. This study provides useful information for understanding the structure of snake assemblages of the Atlantic Forest and is potentially useful for conservation assessments and for designing conservation plans
Reference
Fiorillo BF., Silva BR, Menezes FA, Marques OAV, Martins M. Composition and natural history of snakes from Etá farm region, Sete Barras, south-eastern Brazil. Zookeys. 2020 Apr;931:115-153. doi:10.3897/zookeys.931.46882.
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https://repositorio.butantan.gov.br/handle/butantan/3043
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2020


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