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Roosting ecology of Amazonian bats : evidence for guild structure in hyperdiverse mammalian communities. (American Museum novitates, no. 3870)

Show simple item record Voss, Robert S. Fleck, David W. (David William), 1969- Strauss, Richard E. Velazco, Paúl M. Simmons, Nancy B. 2016-12-14T23:45:34Z 2016-12-14T23:45:34Z 2016-12-14
dc.description 43 pages : 1 map ; 26 cm. en_US
dc.description.abstract The ecological mechanisms that sustain high species richness in Neotropical bat communities have attracted research attention for several decades. Although many ecologists have studied the feeding behavior and diets of Neotropical bats on the assumption that food is a limiting resource, other resource axes that might be important for species coexistence are often ignored. Diurnal refugia, in particular, are a crucial resource for bats, many of which exhibit conspicuous morphological or behavioral adaptations to the roost environment. Here we report and analyze information about roost occupancy based on >500 field observations of Amazonian bats. Statistical analyses of these data suggest the existence of distinct groups of species roosting (1) in foliage, (2) exposed on the trunks of standing trees, (3) in cavities in standing trees, (4) in or under fallen trees, (5) beneath undercut earth banks, and (6) in arboreal insect nests; additionally, we recognize other groups that roost (7) in animal burrows, and (8) in rocks or caves. Roosting-guild membership is hypothesized to have a filtering effect on Amazonian bat community composition because some types of roosts are absent or uncommon in certain habitats. Among other applications of our results, cross-classifying bat species by trophic and roosting guilds suggests that the often-reported deficit of gleaning animalivores in secondary vegetation by comparison with primary forest might reflect habitat differences in roost availability rather than food resources. In general, ecological and evolutionary studies of Neotropical bats would be enhanced by considering both trophic- and roosting-guild membership in future analyses, but additional fieldwork will be required to determine the roosting behavior of many data-deficient species. en_US
dc.language.iso en_US en_US
dc.publisher American Museum of Natural History. en_US
dc.relation.ispartofseries American Museum novitates;no.3870.
dc.subject Bats. en_US
dc.subject Niche (Ecology) en_US
dc.subject Habitat (Ecology) en_US
dc.subject Resource partitioning (Ecology) en_US
dc.subject Mammal communities. en_US
dc.subject Biotic communities. en_US
dc.subject Ecology. en_US
dc.subject Amazon River Region. en_US
dc.title Roosting ecology of Amazonian bats : evidence for guild structure in hyperdiverse mammalian communities. (American Museum novitates, no. 3870) en_US
dc.title.alternative Evidence for guild structure in hyperdiverse mammalian communities. en_US

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  • American Museum Novitates
    Novitates (Latin for "new acquaintances"), published continuously and numbered consecutively since 1921, are short papers that contain descriptions of new forms and reports in zoology, paleontology, and geology. New numbers are published at irregular intervals.

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