1. Land,
Air, and Water Resources, University of California, Davis, California 95616, United States
2. Energy
and Resources Group, University of California, Berkeley, California 94720, United States
3. Climate
and Carbon Sciences Program Area, Lawrence Berkeley National Laboratory, Berkeley, California 95720, United States
4. Center for
Conservation Biology, University of California, Riverside, California 92521, United States
5. Department
of Biology, University of California, Riverside, California 92521, United States
6. Department
of Microbiology and Plant Pathology, University of California, Riverside, California 92521, United States