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Bat diversity of a Cerrado habitat in central Brazil

  • Marlon Zortéa
  • Cleber J. R. Alho
Original Paper

Abstract

The Cerrado is considered one of the 25 biodiversity hotspots in the world by conservation organizations. There are few studies on bat taxonomic groups for this biome. Herein we present a bat survey employing mist nets in the protected area of a private natural heritage reserve Reserva Particular do Patrimônio Natural Pousada das Araras, located in the west-central Brazil. We investigate the hypothesis that the Cerrado habitat complexity plays a role on the different structuring forces in bat ecological communities. Bats represent a diversity of trophic levels, and they occupy a wide range of available Cerrado habitats and microhabitats. The patterns and processes we discuss represent the factors influencing coexisting species of bats in different habitats and their implications for conservation. We captured 758 individuals of 25 species belonging to four families. Phyllostomidae was the dominant family, represented by 20 species (80%). The average recapture rate was 6.2%, and the species with most proportional recapture was A. caudifer. Greater species richness was observed among bats with predominantly insectivore habits, followed by frugivores. Glossophaga soricina was a dominant species, with about 30% of the captures. There was seasonal variation relating to the number of bats captured, with greater bat frequency occurring during the wet season, although some species occurred at higher rates during the dry season, such as C. perspicillata and S. lilium. Sanguivore bats were abundant, reflecting the availability of shelters and food supply (livestock) in the surrounding area. Compared to other surveyed areas, Pousada das Araras may be considered of high species diversity, supplanting the majority of known Cerrado studied areas. Apparently Cerrado favours the occurrence of insectivore species, with emphasis on the foliage-gleaning insectivores belong to the subfamily Phyllostominae. This study indicates that apparently the conservation of the Cerrado savanna fragments can support a considerable diversity of bat species.

Keywords

Brazil Cerrado Chiroptera Community Diversity Savanna 

Notes

Acknowledgements

This work was supported by WWF-Brasil (Worldwide Fund for Nature). CAPES (Coordenação de Aperfeiçoamento de Pessoal de Nível Superior) granted M. Zortéa a fellowship. We are especially indebted to the staff of Pousada das Araras for their permission to carry out our study in the reserve, and to. M. H. Assis, E. Nascimento, Q. M. Zortéa and J. G. Duarte for their valuable help during the fieldwork.

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Copyright information

© Springer Science+Business Media B.V. 2008

Authors and Affiliations

  1. 1.Universidade Federal de GoiásJataiBrazil
  2. 2.Programa de Pós-graduação em Meio Ambiente e Desenvolvimento RegionalUNIDERP (Universidade para o Desenvolvimento do Estado e da Região do Pantanal)Campo GrandeBrazil

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