Análise da atividade de morcegos em uma área rural do município de Ampére, Paraná

Abstract

The order Chiroptera is composed of the whole range of bat species in the world, these mammals they bring benefits to the environment where they are employed, as they help in pest control, regulating some insect populations, are seed dispersers, contributing to the preservation of forests, are important pollinators and are indicators of degrees of change in the environment. In view of the large gap in studies and knowledge in relation to bats, their distribution and habits in the state of Paraná, this work aims to carry out an analysis of bat activities in a rural area in the municipality of Ampére, taking into account taking into account the variables of light, temperature, humidity and wind speed. A single sampling point was defined in rural areas, and it was sampled for 31 nights, for a period of 20 minutes per night, totaling a sampling effort of 10h:20min. To analyze the activity of bats at this sample point, a Bat Detector (ultrasonic detector device) was used. In each night of sampling of the chiropterofauna, at the beginning and at the end of the sampling, the variables were measured light, temperature, air humidity and wind speed. A total of 353 bat passes were recorded during the sample period. Using simple linear models, it was found that bat activity showed a significant and positive relationship only with the luminosity variable. Thus, we observed that the activity of the chiropterans was higher in the early evening, where sunlight was still present. With that, we emphasize the importance of studies with bats in the region, because only through research will the transmission of knowledge be carried out and we will have a greater understanding of the life of these neotropical mammals.