Journal
ECOGRAPHY
Volume 33, Issue 4, Pages 667-677Publisher
WILEY
DOI: 10.1111/j.1600-0587.2009.05746.x
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Funding
- National Park Service
- National Center for Environmental Research STAR program of the US-EPA [R-82909101-0]
- NSF/NIH joint program in Ecology of Infectious Diseases [DEB-0224328]
- USGS
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Black-tailed prairie dogs consistently functioned as a keystone species in that there were strong statistically significant differences in community composition on versus off prairie dog colonies across the species range in prairie grassland. Small mammal species composition varied along both latitudinal and longitudinal gradients, and species richness varied from 4 to 11. Assemblages closer together were more similar; such correlations approximately doubled when including only on- or off-colony grids. Black-tailed prairie dogs had a significant effect on associated rodent assemblages that varied regionally, dependent upon the composition of the local rodent species pool. Over the range of the black-tailed prairie dog, on-colony rodent richness and evenness were less variable, and species composition was more consistent than off-colony assemblages.
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