1. Yale School of the Environment Yale University New Haven CT USA
2. Agronomy Department University of Florida Gainesville FL USA
3. Center for Ecosystem Society and Science (ECOSS) Northern Arizona University Flagstaff AZ USA
4. Bonanza Creek Long Term Ecological Research Site University of Alaska Fairbanks AK USA
5. Biological Sciences University of Texas at El Paso El Paso TX USA
6. Woods Hole Research Center Falmouth MA USA
7. Climate Sciences Department Climate and Ecosystem Sciences Division Lawrence Berkeley National Laboratory Berkeley CA USA