Macrophyllum macrophyllum (CHIROPTERA, PHYLLOSTOMIDAE) IN THE BRAZILIAN CAATINGA SCRUBLANDS: RIVER BASINS AS POTENTIAL ROUTES OF DISPERSAL IN XERIC ECOSYSTEMS

We present the first record of Macrophyllum macrophyllum in the Brazilian Caatinga. The foraging strategy of this species, mainly over water, is consistent with the lack of records for the semi-arid Caatinga biome. During a survey in the municipality of Paripiranga, in northern Bahia, an adult male of M. macrophyllum was captured on 27th March 2012 (dry season) on the margin of the Vaza-Barris River. Given its ecological and behavioral adaptations, it seems likely that M. macrophyllum occurs only in association with the principal perennial rivers of the Caatinga. Further research may confirm that Macrophyllum is more widespread in the Caatinga, but likely restricted to local corridors of habitat associated with the region's perennial rivers. RESUMO. Macrophyllum macrophyllum (Chiroptera, Phyllostomidae) na Caatinga brasileira: bacias hidro- graficas como potenciais rotas de dispersao em ecossistemas xericos. Nos apresentamos o primeiro registro de Macrophyllum macrophyllum na Caatinga. A estrategia de forrageio desta especie, principalmente sobre a agua, e consistente com a ausencia de registros para o bioma semiarido brasileiro. Durante um levantamento no municipio de Paripiranga, no norte do estado da Bahia, um macho adulto de M. macrophyllum foi capturado em 27 de marco de 2012 (estacao seca) as margens do rio Vaza-Barris. Considerando sua adaptacao ecologica e comportamental parece provavel que M. macrophyllum ocorra apenas ao longo dos principais rios perenes da Caatinga. Futuras pesquisas podem confirmar se Macrophyllum possui uma distribuicao mais ampla na Caatinga, embora provavelmente restrito a corredores de habitat associados com rios perenes.

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