1. Graduate Degree Program in Ecology, Colorado State University, Fort Collins, Colorado, USA
2. Natural Resource Ecology Laboratory, Colorado State University, Fort Collins, Colorado, USA
3. United States Geological Survey, Fort Collins Science Center, Fort Collins, Colorado, USA
4. Institute of Environmental Change and Society, University of Regina, Regina, Saskatchewan, Canada
5. Institute of Arctic and Alpine Research, University of Colorado Boulder, Boulder, Colorado, USA
6. U.S. Geological Survey, Water Resources, Reston, Virginia, USA