1. Conservation Ecology Center Smithsonian Conservation Biology Institute Front Royal Virginia USA
2. Forest Global Earth Observatory Smithsonian Tropical Research Institute Panama Republic of Panama
3. Center for Tree Science The Morton Arboretum Lisle Illinois USA
4. Harvard University Petersham Massachusetts USA
5. Midwest Dendro LLC Naperville Illinois USA
6. Department of Geography & Environmental Studies University of New Mexico Albuquerque New Mexico USA
7. Department of Biology Wilfrid Laurier University Waterloo ON Canada
8. School of Natural Resources University of Nebraska‐Lincoln Lincoln Nebraska USA
9. School of Ecosystem and Forest Sciences University of Melbourne Richmond VIC. Australia
10. University of Alberta Edmonton Alberta Canada
11. National Parks Wildlife and Plant Conservation Department Bangkok Thailand
12. Swiss Federal Institute for Forest, Snow and Landscape Research Birmensdorf Switzerland
13. Faculty of Forestry University of British Columbia Vancouver British Columbia Canada
14. Department of Forestry and Natural Resources Purdue University West Lafayette Indiana USA
15. Department of Forest Ecology The Silva Tarouca Research Institute for Landscape and Ornamental Gardening Brno Czech Republic
16. S. J. & Jessie E. Quinney College of Natural Resources and the Ecology Center Utah State University Logan Utah USA
17. Fort Collins Science Center U.S. Geological SurveyNew Mexico Landscapes Field Station Los Alamos New Mexico USA
18. Department of Geography Indiana University Bloomington Indiana USA
19. Smithsonian Environmental Research Center Edgewater Maryland USA
20. CIRAD Montpellier France
21. School of Biological Sciences University of Nebraska Lincoln USA
22. Center for Plant Science Innovation University of Nebraska Lincoln USA
23. Canadian Forest Service Northern Forestry Centre Edmonton Alberta Canada
24. Forest Ecology and Forest Management Group Wageningen The Netherlands