| Southern Appalachian | University of Tennessee, Knoxville |
| South Florida and Caribbean | Florida International University |
| Rocky Mountains | University of Montana |
| Piedmont-South Atlantic Coast | University of Georgia, Warnell School of Forestry and Natural Resources |
| Pacific Northwest | University of Washington |
| North Atlantic Coast | The University of Rhode Island |
| Hawai'i-Pacific Islands | University of Hawai'i at Hilo |
| Gulf Coast | Texas A&M University, AgriLife Research, Natural Resources Institute |
| Great Rivers | University of Missouri - Columbia on behalf of The Curators of the University of Missouri | University of Missouri System |
| Great Plains | University of Nebraska, Lincoln |
| Great Lakes-Northern Forest | University of Minnesota |
| Great Basin | University of Nevada, Reno |
| Desert Southwest | University of Arizona |
| Colorado Plateau | Northern Arizona University |
| Chesapeake Watershed | University System of Maryland |
| Californian | University of California (Berkeley) |
| Alaska | University of Alaska, Fairbanks |
