1. Department of Agricultural Biology and Graduate Degree Program in Ecology Colorado State University Fort Collins Colorado U.S.A.
2. United States Department of Agriculture, Agricultural Research Service, Pollinating Insect–Biology, Management, and Systematics Research Unit, Department of Biology, UMC5310 Utah State University Logan Utah U.S.A.
3. U.S. Geological Survey Fort Collins Science Center Fort Collins Colorado U.S.A.
4. Department of Biology, Centre for Biodiversity Dynamics (CBD) Norwegian University of Science and Technology (NTNU) Trondheim Norway
5. Department of Biology and Graduate Degree Program in Ecology Colorado State University Fort Collins Colorado U.S.A.