Roost use by bats in Espírito Santo, Brazil: comparison of a protected area, a rural landscape, and an urban landscape

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Data

2011-12

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National Distance Education University (UNED)

Resumo

Bats use a wide array of roosts that have several important roles for bats. The present study was conducted in three areas in the state of Espírito Santo, southeastern Brazil: a protected area, a rural landscape, and an urban landscape. In each area we actively searched for roosts, and when one was found we set mist-nets (from one to four, depending on roost size) close to the roost entrance. These mist-nets stayed open from three to six hours after sunset. We observed bats using several types of roosts: hollow trees, foliage, caves, rock crevices, buildings, abandoned houses, bridges, and rain pipes. We found a total of 12 roosts, four in each sampled area. To our knowledge we present the first record of Lonchorhina aurita using man-made roosts. Roosts are of paramount importance to the persistence of bat populations. Therefore, bat roost ecology will play a vital role in managing and conserving bat species.
Los murciélagos utilizan una variedad de refugios, con funciones diferentes e importantes en la ecología del grupo. El conocimiento de estos refugios es importante en su gestión y conservación. Este estudio se realizó en tres localidades de Espíritu Santo, sudeste de Brasil: (1) Colina de Vargas (una zona protegida), (2) un paisaje rural, y (3) un paisaje urbano. En estas tres áreas se llevó a cabo la búsqueda activa de refugiospara instalar entre una y cuatro redes de niebla (dependiendo del tamaño del refugio) cerca de la entrada principal del refugio. Las redes se mantuvieron activas 3-6 horas después del atardecer. Se encontró un total de 12 refugios, cuatro en cada área, incluyendo: huecos de árboles, follaje, cuevas, grietas de las rocas, edificios, casas abandonadas, puentes y tuberías de aguas pluviales. Este es el primer registro de refugio natural de Lonchorhina aurita.

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Palavras-chave

Roost ecology, Urban landscape, Rural landscape, Atlantic Forest, Chiroptera, Ecología de refugios, Paisaje urbano, Paisaje rural, Atlántico

Citação

MENDES, Poliana; VIEIRA, Thiago Bernardi; OPREA, Monik; BRITO, Daniel; DITCHFIELD, Albert David. Roost use by bats in Espírito Santo, Brazil: comparison of a protected area, a rural landscape, and an urban landscape. Research Journal of the Costa Rican Distance Education University, San José, v. 3, n. 2, p. 151-157, Dec. 2011.