Estimated Areal Extent of Colonies of Black-tailed
Prairie Dogs in the Northern Great Plains
Acknowledgments
We thank D. Mulhern, R. Myhre, J. Oldemeyer, G. Schenbeck, and the Biodiversity Legal Foundation, early catalysts for the aerial survey, and the United States Northern Great Plains Interagency Assessment Team for supporting this project. We also thank W. Bellah, C. Gardner, D. Gilbert, L. Mittleider, G. Mason, G. Morris, and M. Whitt for aviation, and global positioning system and geographic information system support. We are grateful to F. Andelt (Nebraska Game and Parks Commission), E. Dowd (South Dakota Game, Fish and Parks Department), R. Luce (Wyoming Game and Fish Department), G. Williams (South Dakota Department of Agriculture), and others who provided locations of colonies of black-tailed prairie dogs. We also thank R. E. Kirby of the United States Geological Survey and D. Cawrse and M. Peterson of the United States Department of Agriculture, Forest Service for support. P. Gober, R. King, S. Miller, G. A. Sargeant, G. C. White, and anonymous reviewers provided useful comments on the manuscript.
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