1. School of Forestry, Northern Arizona University, Flagstaff, AZ, USA
2. Dorena Genetic Resource Center, USDA Forest Service, Cottage Grove, OR, USA
3. Department of Mathematics, The University of Miami, Coral Gables, FL, USA
4. Theoretical Ecology, University of Regensburg, Regensburg, Germany
5. Department of Environmental Science and Policy, University of California, Davis, CA, USA
6. Department of Ecology, Evolution, and Behavior, Iowa State University, Ames, IA, USA
7. Department of Wildland Resources & Ecology Center, Utah State University, Logan, UT, USA
8. Department of Biology, The Pennsylvania State University, University Park, PA, USA
9. Department of Geography, Humboldt-University Berlin, Berlin, Germany
10. Department of Land Change and Science, Swiss Federal Institute WSL, Birmensdorf, Switzerland
11. Nature Conservation and Landscape Ecology, University of Freiburg, Freiburg, Germany