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Journal article
Temporal variation in prey consumed by big brown bats (Eptesicus fuscus) in a maternity colony
Northwest science., Vol.73(2), pp.114-120
1999
Handle:
https://hdl.handle.net/2376/1160
Abstract
We hypothesized that prey consumed by bats in maternity colonies differed by season and perhaps by time of day during postnatal development of young. Such was based on information that availability of prey to aerial-foraging bats differs spatially and temporally, some bats are selective of prey, and activity of lactating females varies with stage of development of young and their demands for energy. We identified prey in fecal samples collected at 2400 and 0600 h at weekly intervals from beneath two clusters of big brown bats (Eptesicus fuscus) in a maternity colony in a barn in Benton County, Oregon during postnatal development of young. Only consumption of moths (Lepidoptera) differed significantly by week; neither percent frequency nor average percent volume for any taxon of prey differed significantly by time of day. The overwhelming preponderance of caddisflies (Trichoptera) consumed possibly obscured variation in frequency and volume of other taxa of prey eaten. A maternity colony more distant from a single abundant, highly desirable, source of easily captured prey possibly would exhibit greater differences in prey consumed during postnatal development of young
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Details
- Title
- Temporal variation in prey consumed by big brown bats (Eptesicus fuscus) in a maternity colony
- Creators
- B. J. Verts (Author)Leslie N. Carraway (Author)John O. Jr. Whitaker (Author)
- Publication Details
- Northwest science., Vol.73(2), pp.114-120
- Academic Unit
- Northwest Science
- Publisher
- WSU Press
- Identifiers
- 99900501524001842
- Copyright
- In copyright ; openAccess ; http://rightsstatements.org/vocab/InC/1.0/ ; http://purl.org/eprint/accessRights/OpenAccess
- Language
- English
- Resource Type
- Journal article