Bats of Mesa Verde National Park, Colorado: composition, reproduction, and roosting habits

Product Type: 

Journal Article

Year: 

2011

Author(s): 

O’Shea, T.J., P.M. Cryan, E.A. Snider, E.W. Valdez, L.E. Ellison, and D.J. Neubaum

Suggested Citation: 

O’Shea, T.J., P.M. Cryan, E.A. Snider, E.W. Valdez, L.E. Ellison, and D.J. Neubaum. 2011. Bats of Mesa Verde National Park, Colorado: composition, reproduction, and roosting habits. Monographs of the Western North American Naturalist. 5(2011): 1-19.

We determined the bat fauna at Mesa Verde National Park (Mesa Verde) in 2006 and 2007, characterized bat elevational distribution and reproduction, and investigated roosting habits of selected species. We captured 1996 bats of 15 species in mist nets set over water during 120 nights of sampling and recorded echolocation calls of an additional species. The bat fauna at Mesa Verde included every species of bat known west of the Great Plains in Colorado, except the little brown bat (Myotis lucifugus). Some species showed skewed sex ratios, primarily due to a preponderance of males. Thirteen species of bats reproduced at Mesa Verde. Major differences in spring precipitation between the 2 years of our study were associated with differences in reproductive rates and, in some species, with numbers of juveniles captured...