1. Jet Propulsion Laboratory California Institute of Technology Pasadena CA USA
2. Cornell University Ithaca NY USA
3. USDA Forest Service Pacific Southwest Research Station Hilo HI USA
4. University of Hawai’i at Mānoa Honolulu HI USA
5. University of California Santa Cruz CA USA
6. Utah State University Logan UT USA
7. U.S. Forest Service Pacific Southwest Research Station Mammoth Lakes CA USA
8. Harvard Forest Harvard University Petersham MA USA
9. University of Hawai’i at Hilo Hilo HI USA
10. University of California Los Angeles CA USA
11. Indiana University Bloomington IN USA