1. School of Biology and Ecology University of Maine Orono ME 04469 USA
2. Department of Ecology, Evolution and Behavior University of Minnesota Saint Paul MN 55108 USA
3. Department of Forest and Wildlife Ecology University of Wisconsin–Madison Madison WI 53706 USA
4. John Muir Institute of the Environment and Department of Land, Air, and Water Resources University of California Davis CA 95616 USA
5. Department of Earth and Atmospheric Sciences and Department of Biological Sciences University of Alberta Edmonton AB T6G 2E3 Canada
6. Center for Advanced Land Management Information Technologies School of Natural Resources University of Nebraska–Lincoln Lincoln NE 68583 USA
7. Département de Sciences Biologiques et Institut de Recherche en Biologie Végétale Université de Montréal Québec H1X 2B2 Canada
8. Remote Sensing Laboratories University of Zurich Zurich 8057 Switzerland
9. Center for Global Discovery and Conservation Science Arizona State University Tempe AZ 85287 USA
10. School for Geographical Sciences and Urban Planning Arizona State University Tempe AZ 85281 USA
11. Department of Agricultural and Biological Engineering University of Florida Gainesville FL 32611 USA
12. School of Geography University of Nottingham Nottingham Nottinghamshire NG7 2RD UK
13. Ecology and Evolutionary Biology University of Tennessee Knoxville TN 37996 USA