Water voles are Britain's fastest-declining wild mammal, with mink predation, habitat loss, and water pollution driving catastrophic population decline, but concerted conservation is achieving recovery.
Water vole welfare conservation demonstrates the power of targeted intervention. Individual water voles face predation by mink — a traumatic, violent death — and habitat loss that forces exposure in open areas. Conservation interventions that remove mink pressure and restore bankside vegetation with deep root systems for burrow tunnelling directly improve both survival and daily welfare. The speed of recovery when conditions are improved demonstrates that water vole welfare deficits are environmentally rather than intrinsically caused, making them highly amenable to targeted conservation action.