1. Rocky Mountain Biological Laboratory Crested Butte CO USA
2. Environmental Change Institute School of Geography and the Environment University of Oxford Oxford UK
3. Department of Environmental Science, Policy, and Management University of California Berkeley CA USA
4. Department of Physical Geography Stockholm University Stockholm Sweden
5. Earth and Environmental Sciences Division Los Alamos National Laboratory Los Alamos NM USA
6. Department of Botany and Biodiversity Research Centre University of British Columbia Vancouver BC Canada