Morcegos (Mammalia: Chiroptera) da Estação Ecológica Serra Geral do Tocantins: composição específica e considerações taxonômicas

Abstract

During 28 days of field work in rainy season in 2003 and 2008, 39 species of bats were recorded in the Estação Ecológica Serra Geral do Tocantins, northeastern State of Tocantins. This is one of the first studies about bat communities in the State of Tocantins increasing the number of species known to occur in that Federal unit, with 29 species representing the first occurrence for the State. Frugivores P. lineatus and C. perspicillata were the most common species in the community, with 23.5 and 15.4% of total captures. Diversity at the family level also was high with seven families recorded: Phyllostomidae (26 species), Vespertilionidae (5), Molossidae (3), Emballonuridae (2), Mormoopidae (1), Noctilionidae (1), and Thyropteridae (1). Most of mesic and cerrado (s.s.) areas are not included in this Conservation Unit, imposing a problem for the conservation of habitat-restricted species like T. devivoi which was captured only in "veredas" with Heliconiacea until now. Additionally, the region is facing an increase in the tourism, agriculture and pasture activities. Due to the high expected bat diversity for the area, the known ecological functions played by bats, and the several human induced threats, there is urgency concerning the conservation strategies for this group of mammals in the vicinity of the Estação Ecológica Serra Geral do Tocantins. The species with high importance in relation to taxonomy, biogeography and conservation issues are: Lonchophylla dekeyseri, Glyphonycteris behnii, Micronycteris sanborni, Artibeus anderseni, Sturnira tildae and the recently described Thyroptera devivoi.

Morcegos da Chapada do Araripe, nordeste do Brasil

“…O levantamento feito por nós registrou um nú-mero de espécies dentro do esperado para áreas de Caatinga e Cerrado, que normalmente reportam entre 15 e 25 espécies (Willig, 1983;Pedro & Taddei, 1997;Silva et al, 2004b;Tomáz & Zoréa, 2008;Gregorin et al, 2011). Contudo, estudos de longo prazo que empreguem um esforço amostral superior tendem a apresentar uma riqueza de espécies consideravelmente maior (e.g., Esbérard, 2003;Sampaio et al, 2003;Faria et al, 2006;Sá-Neto & Marinho-Filho, 2013).…”

Bats in forest remnants of the Cerrado savanna of eastern Mato Grosso, Brazil

“…The value recorded in Nova Xavantina (H' = 2.37) is, as expected for the region, higher than the results of surveys of southern portions of the biome (Bordignon 2006, Zortéa & Alho 2008, Camargo et al 2009, Ferreira et al 2010, Zortéa et al 2010). Gregorin et al (2011) recorded H' = 2.86 in preserved areas of the northern Cerrado.…”

First record of Micronycteris sanborni (Chiroptera: Phyllostomidae) from Central Amazonia, Brazil: range expansion and description of its echolocation

“…The species has only been previously recorded in the mesic habitats of cerrado and caatinga where it is thought to be typically associated with dry open areas such as savannahs and pastures ( Simmons 1996, Brooks et al 2002, Simmons 2002, Gregorin et al 2008, Nogueira et al 2008, Rocha 2010, Gregorin et al 2011. Eleven of the 12 records of the species are from Brazil.…”