Comportamento e reprodução em poleiro de quatro espécies de morcegos sinantrópicos neotropicais

Abstract

Replacement of natural areas with anthropomorphized landscapes brings a need to understand synanthropic animals. Bats are the mammalian group with the largest diversity in urban areas and many species roost in human constructions. describe aspects of the natural history of four species of Neotropical synanthropic bats through their perch ecology in the coastal region of northeastern Brazil. We monitored the roost using Infrared cameras for a year. Bats were divided according to roosting habits as exposed roosts (Saccopteryx leptura e Rhynchonycteris naso ) or cryptic roosts (Carollia perspicillata e Peropteryx macrotis). Roosts were located in the Fazenda Pacatuba (Sapé) and UFPB (João Pessoa) both in the state of Paraíba, Brazil. Roosts were all in human constructions and near natural areas. Behavior was monitored with scan samples. A qui-square test used to calculate seasonal difference. We found roost strategies to influence behavior, sociality, and reproduction. Species in cryptic roosts were more active, social interactions were more common during the day and they adopted resource defense polygyny. Species in exposed roosts were less active, social interactions were rare and adopted alternative mating systems. This is the first record of S. leptura adopting polyandry. All groups were more active in the rainy season than dry season.