1. National Wildlife Research Center, Wildlife Services, Animal and Plant Health Inspection Service United States Department of Agriculture Fort Collins Colorado USA
2. United States Department of Agriculture, Animal and Plant Health Inspection Services, Wildlife Services National Feral Swine Damage Management Program Fort Collins Colorado USA
3. Department of Fish, Wildlife, and Conservation Biology Colorado State University Fort Collins Colorado USA
4. Savannah River Ecology Laboratory, Warnell School of Forestry and Natural Resources University of Georgia Aiken South Carolina USA
5. Buck Island Ranch Archbold Biological Station Lake Placid Florida USA
6. Centers for Epidemiology and Animal Health, Veterinary Services, Animal and Plant Health Inspection Service United States Department of Agriculture Fort Collins Colorado USA