Diversidad de herpetofauna en una reserva en recuperación en Comandante Andresito, Misiones, Argentina
Palavras-chave:
Community Ecology, Atlantic Forest, Pitfall Traps, San Sebastián de la Selva, InventoryResumo
In this study, we report the herpetofauna of San Sebastian de la Selva Private Reserve, previously used as a fishing complex and cattle farm. We identified 4 sites based on plant communities, where species richness, abundance and other indexes were analyzed to determine alpha and beta diversity. Sampling was conducted actively by visual encounter surveys and acoustic surveys and passively by drift fence pitfall traps and artificial coverage, using a stratified random sampling design. We collected photographic records and calculated a rarefaction curve to assess sampling effort. As a result, we identified 38 species, including 21 species of anurans, 12 snakes, 3 lizards, 1 turtle and 1 amphisbaena. Alpha diversity was lowest on exotic grasslands and presented significant differences from the three other sites. There was low similarity among sites, with the exotic grassland showing the lowest values for both beta-diversity indices. We discussed the relationship between low alpha and beta diversity in the exotic grassland and the loss of biodiversity resulting from the destruction and replacement of native environments. We recommend a more thorough analysis of human impact on sites for a better correlation between habitat modification and biodiversity.
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