1. The Rocky Mountain Biological Laboratory Crested Butte CO81224 USA
2. Department of Ecology & Evolutionary Biology University of Arizona Tucson AZ85721 USA
3. Center for Macroecology, Evolution & Climate Natural History Museum of Denmark University of Copenhagen DK‐2100 Copenhagen Denmark
4. The Chicago Botanic Garden Glencoe IL60622 USA
5. Department of Ecology & Evolutionary Biology University of California Irvine Irvine CA92697 USA
6. Institute of Integrative Biology ETH Zürich8092 Zürich Switzerland
7. Graduate Group in Ecology University of California Davis Davis CA95616 USA
8. Rubenstein School of Environment and Natural Resources University of Vermont Burlington VT05405 USA