Species richness and abundance of bats in fragments of the stational semidecidual forest, Upper Paraná River, southern Brazil

The Upper Paraná River floodplain is inserted in a region of the Mata Atlântica biome, which is a critical area to preserve. Due to the scarcity of researches about the chiropterofauna in this region, the present study investigated species richness and abundance of bats in remnants from the stational semidecidual forest of the Upper Paraná River, southern Brazil. Samplings were taken every month, from January to December 2006, using 32 mist nets with 8.0 x 2.5 m, resulting in 640 m²/h and totaling a capture effort of 87,040 m²/h. In order to estimate the species richness, the following estimators were employed Chao1 and Jack2. During the study, a total of 563 individuals belonging to 17 species (Artibeus planirostris, Artibeus lituratus, Carollia perspicillata, Platyrrhinus lineatus, Sturnira lilium, Artibeus fimbriatus, Myotis nigricans, Desmodus rotundus, Artibeus obscurus, Noctilio albiventris, Phylostomus discolor, Phylostomus hastatus, Chrotopterus auritus, Lasiurus ega, Chiroderma villosum, Pygoderma bilabiatum and Lasiurus blossevillii) were captured. The estimated richness curves tended to stabilize, indicating that most of the species were sampled. Captured species represented 10% of the taxa recorded in Brazil and 28% in Paraná State, revealing the importance of this area for the diversity of bats. These findings indicate the need to determine actions aiming to restrict human activities in these forest fragments, in order to minimize anthropogenic impacts on the chiropterofauna

Primeiro registro de Myotis riparius Handley (Mammalia, Chiroptera, Vespertilionidae) no Estado do Rio de Janeiro, sudeste do Brasil

No presente trabalho, é registrada a primeira ocorrência do morcego vespertilionídeo MyotisripariusHandley, 1960 no Estado do Rio de Janeiro. Sete exemplares dessa espécie foram capturados com redes de espera ("mist nets") na Reserva Biológica do Tinguá, uma área de Mata Atlântica no Município de Nova Iguaçu, Estado do Rio de Janeiro. Aspectos taxonômicos dessa espécie são discutidos e medidas obtidas para os exemplares são fornecidas.<br>In this paper, the first occurrence of the vespertilionid bat MyotisripariusHandley, 1960 in the Rio de Janeiro State, southeastern Brazil is reported. Seven specimens were caught with mist nets in the Reserva Biologica do Tinguá, an Atlantic Forest area in the Nova Iguaçu County, Rio de Janeiro state. Taxonomic aspects of this species are discussed. Measurements obtained for the specimens are also provided