1. Department of Community Ecology, Helmholtz-Centre for Environmental Research—UFZ and formerly with the Institute of Ecology, Technische Universität, Berlin, Germany
2. Department of Ecology, Evolution, and Natural Resources, Rutgers University, Brunswick, New Jersey
3. University of Missouri, Columbia, Missouri
4. University of Puerto Rico, San Juan, Puerto Rico
5. Ulm University, Ulm, Germany
6. University of Helsinki, Helsinki, Finland
7. Cornell University, Ithaca, New York
8. Auburn University, Auburn, Alabama
9. University of Helsinki, Faculty of Biological and Environmental Sciences, Ecosystems and Environment Research Programme in Lahti, Finland
10. Department of Biological Sciences, University of Toronto Scarborough, Toronto, Ontario, Canada
11. Department of Biodiversity and Conservation Biology, Swiss Federal Institute for Forest, Snow, and Landscape Research, Birmensdorf, Switzerland
12. Department of Environmental Conservation, University of Massachusetts—Amherst, Amherst, Massachusetts and the Department of Ecology, Evolution, and Natural Resources at Rutgers University, in Brunswick, New Jersey
13. Department of Biology, Pittsburg State University, Pittsburg, Kansas
14. Center for Tree Science, Morton Arboretum, Lisle, Illinois
15. University of Sydney, Sydney, Australia
16. University of Cape Town, Cape Town, South Africa
17. University of Melbourne, Melbourne, Australia