1. Center for Applications of Remote Sensing Department of Geography Oklahoma State University Stillwater Oklahoma 74078 USA
2. Center for Advanced Land Management Information Technologies School of Natural Resources University of Nebraska‐Lincoln Lincoln Nebraska68583USA
3. Department of Earth and Atmospheric Sciences University of Alberta Edmonton Alberta T6G 2E3 Canada
4. Department of Biological Sciences University of Alberta Edmonton Alberta T6G 2R3 Canada
5. Nebraska Director of Science The Nature Conservancy Aurora Nebraska 68818 USA
6. Department of Ecology, Evolution and Behavior University of Minnesota Saint Paul Minnesota 55108 USA