Water voles have undergone one of the most dramatic declines of any UK mammal, losing over 90% of their population since the 1960s. Recovery requires tackling both mink predation and habitat loss.
Water voles face an existential welfare crisis caused by intensive predation pressure from mink. Death by mink predation is violent and distressing, and the species experiences chronic population-level insecurity wherever mink are present. Habitat fragmentation also means surviving voles may be isolated from conspecifics, preventing normal social behaviour. Recovery efforts that combine mink control with habitat creation restore both individual welfare and population viability.