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

Abstract

in forest remnants of the Cerrado savanna of eastern Mato Grosso, Brazil. Biota Neotrop. 13(2): http://www.biotaneotropica.org.br/v13n2/en/abstract?inventory+ bn03313022013Abstract: In the state of Mato Grosso, studies aiming to investigate the diversity and richness of bats are still scarce. In the present study, the chiropteran fauna of eastern Mato Grosso (Brazil) was investigated at four sites representing the Cerrado savanna biome with different degrees of anthropogenic impact, in the municipality of Nova Xavantina. Surveys were conducted between January and December, 2010, with a total of 48 nights of mist-netting. A total of 423 bats were captured, representing 25 species distributed in five families. A greater abundance of individuals was recorded at all sites during the rainy season, with considerable variation being observed over the course of the year in species richness and composition, and the abundance of bats. Species richness and bat abundance were higher in the better preserved habitats in comparison with the impacted areas. The timing of foraging activities appeared to vary among the specimens and there was a progressive increase in activity until 19:30 h, with a marked decline after 22:30 h. The ecological diversity (Shannon-Wiener index) of the bat community within the study area was H' = 2.37. Keywords: Chiroptera, conservation, species richness, diversity. SOUSA, R.F., VENERE, P.C. & FARIA, K.C. Morcegos em remanescentes florestais de Cerrado do leste de Mato Grosso, Brasil. Biota Neotrop. 13(2): http://www.biotaneotropica.org.br/v13n2/pt/abstract?inventory +bn03313022013Resumo: No estado de Mato Grosso, os estudos visando investigar a diversidade e riqueza de morcegos ainda são escassos. Neste estudo, a quiropterofauna da região leste mato-grossense foi investigada por meio de capturas em quatro áreas remanescentes de Cerrado com diferentes índices de conservação, no município de Nova Xavantina. As capturas ocorreram de janeiro a dezembro de 2010, totalizando 48 noites de amostragem. Foram capturados 423 indivíduos, distribuídos em 25 espécies e cinco famílias. Os quatro ambientes apresentaram maior abundância na estação chuvosa e, ao longo dos meses e entre as estações do ano a composição, riqueza e abundância de morcegos variaram. As áreas mais preservadas apresentaram maior riqueza e maior abundância de morcegos em relação às áreas degradadas. Foi possível verificar que o horário de forrageamento variou entre os espécimes capturados, ocorrendo um pico crescente de atividade até às 19:30h e uma redução acentuada por volta das 22:30h. A diversidade calculada pelo índice de Shannon-Wiener (H') para as áreas foi de H'=2,37. Palavras-chave: Chiroptera, conservação, riqueza, diversidade. 237 Bats in the Cerrado savanna of Mato Grosso

Bat fauna of the Cerrado savanna of eastern Maranhão, Brazil, with new species occurrences

“…These species belong to 42 genera, distributed in eight families (except Natalidae), of which the Phyllostomidae is the most diverse (55 species), followed by the Molossidae (20) and Vespertilionidae with 12 (Sousa et al 2013). A similar pattern of diversity was recorded in the present study, given that the predominant family was the Phyllostomidae, with 23 species, followed by the Molossidae (four species) and Vespertilionidae, with three species.…”

Occurrence of Phyllostomus elongatus (Geoffroy St.-Hilaire, 1810) (Chiroptera, Phyllostomidae) in the Cerrado of Tocantins and a compilation of its Brazilian distribution

“…Additionally, there is also a record for the Pantanal on an area of semideciduous forest (Bordignon and França 2009). The previous record of P. elongatus for the Cerrado was captured in a gallery forest in the transition between the Cerrado and Amazonia (Sousa et al 2013). The compilation and revision of the geographic distribution of P. elongatus suggest that this species is more frequent on forested habitats with higher humidity.…”

New records on the use of man-made constructions as diurnal roosts by bats from the southern Amazon in central Brazil

“…Together with Miranda et al (2015), the occurrence of T. cirrhosus between Porto Alegre do Norte and Confresa municipalities is the southernmost record of this species for the Amazon, a distance of roughly 500 km east of the record at the Medium Teles Pires River. Considering the vegetational similarity and the short distance (Figure 1), this record therefore opens up the possibility of the occurrence of this species in Tocantins State where the species have never been recorded, since their flight capabilities has enabled bats to overcome geographical barriers, allowing them to make long-distances dispersal (Sousa et al 2013;Arnone et al 2016).…”

“…Instead, there was a colony of more than 50 Pteronotus parnellii Gray, 1843 individuals, a Mormoopidae bat species (Figures 2B and 2C). (Miranda et al 2015) and Juruena National Park (Dalponte et al 2016), respectively; 4 and 5: the first formal record of T. cirrhosus for the Cerrado of the Mato Grosso State at the Nova Xavantina municipality (Sousa et al 2013) and the recent record of this species for the Chapada dos Guimarães National Park (Lima et al in press), respectively. For details, see the main text.…”

“…In spite of being considered of broad geographical distribution, the first formal record of this species for the Mato Grosso State took place only in 2013 (Sousa et al 2013). Since then, its geographical distribution has been extended to new localities in this state (Miranda et al 2015;Dalponte et al 2016;Lima et al in press).…”