Black-tailed prairie dogs are keystone species of North American grasslands whose colony systems create habitat for hundreds of other species. Their welfare is threatened by poisoning campaigns, plague, and habitat loss.
Prairie dog poisoning campaigns create mass mortality events through rodenticides that cause internal hemorrhaging and prolonged painful death. Prairie dogs are social animals with complex alarm call systems, individual recognition, and clear attachment behaviors - the sudden death of colony members through poisoning creates social disruption and stress in surviving individuals. Sylvatic plague causes rapid death across entire colonies - the colony that appears healthy can be completely dead within weeks. Individual prairie dogs dying of plague experience fever, respiratory distress, and lymph node swelling before death. The preventable nature of most poisoning campaigns - based on debunked assumptions about cattle forage competition - makes the welfare cost particularly difficult to justify.