Snakes preying on bats: New records from Brazil and a review of recorded cases in the Neotropical Region

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Abstract

Predation on bats by snakes is relatively infrequently reported in the literature, though it may actually not be an uncommon phenomenon, since bat colonies represent a potential concentration of food for many medium-sized or large snakes. Herein we describe four events of bat predation by snakes and present a review of predation records of snakes on bats in the Neotropics compiled from the literature. a total of 20 species of snakes have been recorded so far as predators of bats in the New World tropics, with boiids being represented by the greatest number of cases. Due to the semi-arboreal habits of most of its species, their large size and their usual preference for mammalian prey, the Boiidae are probably the main reptilian predators of bats in the Neotropics, though predation by colubrids may also be relatively frequent. Two types of predatory events can be pointed out: (1) on active bats outside refuges or exiting them, and (2) on animals (active or inactive) inside refuges. the former strategy is apparently used mainly by boiids, whereas the latter strategy appears to be the one most used by large colubrids.

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Esbérard, C. E. L., & Vrcibradic, D. (2007). Snakes preying on bats: New records from Brazil and a review of recorded cases in the Neotropical Region. Revista Brasileira de Zoologia, 24(3), 848–853. https://doi.org/10.1590/S0101-81752007000300036

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