Morcegos de Itaperuna, norte do estado do Rio de Janeiro, Sudeste do Brasil

Abstract

The bat fauna from Rio de Janeiro State still exists gaps in knowledgement, mainly to North of the State. This article attempts to fill this gap and increases some species to the State's final list. For the capture, mist nets were armed with the aid of aluminum stakes at different sampling points at ground level. For each night of capture, six to eight nets were stretched at dusk and collected after around four hours. The choice of the dimension and the quantity of nets was dependent on the conditions of the sampled site. In addition, an active search was carried out in places that could possibly be used as shelters for bat colonies. Were found 12 species, inserted in three families: Phyllostomidae, Molossidae, Vespertilionidae, and five subfamilies: Carollinae (two species), Desmodontinae (1), Glossophaginae (1), Stenodermatinae (4); Vespertilionidae (1), Phyllostominae (1), and Molossidae (2). Most of the recorded Chiroptera species in this study present a wide geographic distribution, occurring also in other Brazilian biomes. There are 77 species of bats to Rio de Janeiro State, and our study found which represents only 16.88% of the diversity from Rio de Janeiro. According to the richness estimator, 70.92% of the diversity was found. These values demonstrate how diversity may be even higher than that found in this study. However it is still believed that these values are far below reality. The reduced richness wasn’t expected, because the areas are next to wildlife reserve areas as APA Bacia do Rio São João, Estação Ecológica de Guaxindiba, and National park of Restinga de Jurubatiba.