Importância local e regional de remanescentes de Cerrado para a conservação de anfíbios anuros, Brasil Central

Abstract

The Cerrado is home to a diverse assembly of anuran amphibian species, in which they are extremely threatened by the conversion of natural habitats. The objective of this study is to inventory the species of anuran amphibians of the Silvânia National Forest (FNS) and surroundings, in the Cerrado biome, assessing their composition, richness and abundance in different natural environments. Data were collected at 20 points between August 2017 and May 2018, using active search sampling methods and pitfall trap. Secondary and literature data were also included. 39 species of anuran amphibians have been recorded, distributed in 19 genera and nine families. A spatial segregation of species between open and forest environments was observed, in which most species were recorded in open environments, such as cerrado scrictu sensu and cerrado campo. The amphibian communities were more similar to the Conservation Units (Ucs) geographically closer to the FSN, located in the State of Goiás and Federal District. The FNS houses 16.66 of the anuran amphibian species that occur in the Cerrado. These results emphasize the importance of preserving not only Ucs, but also remnants of Cerrado with open and forest vegetation, for the maintenance of biodiversity. In addition, it highlights the importance of studies that evaluate amphibian communities in and around Ucs, in which they provide important information that contributes to the effectiveness of conservation strategies.