Abstract
The Barranca de Metztitlan Biosphere Reserve (BMBR) is an extensive protected area (96 042.94 ha) in Hidalgo state of central Mexico. The reserve is well known for its globally significant endemic flora, but relatively little information is available regarding its herpetofauna. We examined reptile and amphibian community biodiversity occurring in each of 4 vegetation types characteristic of the reserve: pine-oak forest, tropical deciduous forest, sub-montane shrubland, and arid tropical scrubland. Field work was carried out between June 2006 and August 2007, a period spanning both wet and dry seasons. Overall, we found 7 species of amphibians and 31 species of reptiles in the BMBR, distributed in 14 families and 29 genera. Across all vegetation types, reptile species richness was greater in the rainy season, whereas amphibian species richness was greater in the dry season. Among vegetation types, tropical deciduous forest exhibited the highest diversity and richness of amphibians and reptiles. Pine-oak forest exhibited greatest species evenness and species diversity than the other vegetation types. Arid tropical scrubland and sub-montane shrubland were more similar to each other in species diversity. This study represents a significant addition to our knowledge of the herpetofauna from the BMBR, and an important base for future studies on the natural history of amphibians and reptiles in this reserve.
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