Long-term bat study on an island in the southeastern Brazilian coast with comparison of richness and composition of species among sites
2017
Gomes, Luiz Antonio Costa | Esbérard, Carlos Eduardo Lustosa
Although Rio de Janeiro is one of the best sampled states of Brazil for bats, there are still some poorly studied islands on its coast. Hence, we inventoried the bat species of an island on the southwestern coast of Rio de Janeiro, compared five sites sampled within this island, and compared its bat community with seven other sites in the same region. We carried out sampling in July 1995 and from September 2006 to August 2010, comprising 58 samplings. We captured a total of 1502 individuals of 25 bat species with mist nets set far from roosts, or close to or inside roosts. The most abundant species were Artibeus lituratus, Molossus molossus , and Carollia perspicillata . Total sampling effort was 89,400 m ² h. The present study was one out of five inventories carried out in the southwestern coast of Rio de Janeiro that registered more than 1000 bat individuals from more than 24 bat species. Long-term inventories on islands are still needed, because they can result in a large number of species and captures as observed in the present study.
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