Morcegos da Estação Ecológica de Pirapitinga, Morada Nova de Minas, Minas Gerais

Abstract

It was conducted a survey of bats in the Ecological Station (ESEC) at Pirapitinga, Morada Nova de Minas, Minas Gerais in the period from April 2009 to April 2010. Seven nights were realized of collections for each semester in 14 sampling points. The bats were collected with nets (mist-nets) armed at ground level on trails or clearings, near flowering or fruiting plants, possible places of refuge and on the banks of river. For each species an external (forearm length) and 13 cranial measurements were studied. The measurements of males and females were treated separately, due to sexual dimorphism reported for several species. A total of 250 individuals of 17 species were captured, distributed in 13 genera and four families: Phyllostomidae (nine genera and 12 species), Noctilionidae (one genus and one species), Molossidae (one genus and one species) and Vespertilionidae (two genera and three species). Taxonomic comments are provided for all species. The expected richness for ESEC Pirapitinga based on Chao index was 21,5 species, suggesting that the survey area is 79,06% complete. Among the vegetation types sampled, the more similar are “cerrad o” and “campo sujo”, which can be explained by the greater relative frequency of Platyrrhinus lineatus and Artibeus planirostris detected in these two areas, although species richness was higher in the “cerrado sensu stricto”. Profiles of diversity showed that the diversity of ESEC Pirapitinga shows less diversity when compared with fragments of the cerrado in Mato Grosso, Mato Grosso do Sul, Goias and greater diversity in areas of “cerrado sensu stricto” of the Distrito Federal.