1. National Wildlife Research CenterUSDA APHIS Wildlife Services, 4101 LaPorte Ave Fort Collins CO USA
2. National Wildlife Research Center, USDA APHIS Wildlife Services, Biological SciencesDept. 2715 North Dakota State University, PO Box 6050 Fargo North Dakota USA
3. Department of Plant Sciences, 1360 Albrecht Blvd. Loftsgard HallNorth Dakota State University Fargo North Dakota USA
4. Veterinary Services, USDA APHIS CO USA
5. Texas A&M CommerceCommerce Texas USA