1. Smithsonian Environmental Research Center, Edgewater, MD 21403, USA
2. Silvestrum Climate Associates, LLC, San Francisco, CA 94102, USA
3. US Geological Survey, Western Ecological Research Center, Vallejo, CA 93644, USA
4. Yunnan University, Kunming, PR China
5. Bryn Mawr College, Bryn Mawr, PA 19010, USA
6. Johns Hopkins University, Baltimore, MD 21218, USA