1. Botany Department University of Wyoming Laramie Wyoming USA
2. Environmental Studies Program and Department of Biology University of Oregon Eugene Oregon USA
3. Beijing Key Laboratory of Biodiversity and Organic Farming, College of Resources and Environmental Sciences China Agricultural University Beijing China
4. Department of Ecology and Evolutionary Biology and Kansas Biological Survey University of Kansas Lawrence Kansas USA
5. Department of Ecology, College of Urban and Environmental Science, and Key Laboratory for Earth Surface Processes of the Ministry of Education Peking University Beijing China
6. Department of Biological Sciences Dartmouth College Hanover New Hampshire USA
7. School of Biological Sciences The University of Western Australia Crawley Western Australia Australia
8. Department of Environmental Sciences University of Virginia Charlottesville Virginia USA
9. Department of Biology Ohio Wesleyan University Delaware Ohio USA
10. Department of Plant Sciences UC Davis Davis California USA
11. Department of Environmental Science Policy and Management University of California at Berkeley Berkeley California USA
12. Department of Biology Reed College Portland Oregon USA
13. Department of Environmental Science, Policy and Management University of California Berkeley California USA
14. Department of Forestry Michigan State University East Lansing Michigan USA
15. Department of Ecology, Evolution, and Behavior University of Minnesota Saint Paul Minnesota USA
16. Department of Fish, Wildlife & Conservation Biology, and Center for Watershed Sciences University of California, Davis Davis California USA
17. Ronin Institute for Independent Scholarship Montclair New Jersey USA
18. Institute of Arctic and Alpine Research University of Colorado Boulder Boulder Colorado USA