Dormouse Welfare and Woodland Conservation

The hazel dormouse is one of the UK's most endangered small mammals, dependent on coppiced woodland habitats and facing severe population decline.

Key Facts

UK dormouse populations have declined by around 70% since the mid-20th century
They hibernate for up to seven months and are highly sensitive to disturbance during dormancy
Dormice require connected woodland with diverse shrub layer including hazel, bramble, and honeysuckle
Climate change is affecting dormancy timing and creating vulnerability to mild winters with inadequate food availability

Welfare Considerations

Dormouse welfare is intimately tied to woodland habitat quality and connectivity. As specialist woodland mammals requiring the flowering and fruiting resources of a diverse shrub layer, dormice are unable to thrive in simplified woodland with limited species diversity. Hibernation welfare requires undisturbed dormancy sites — handling or disturbing dormant dormice in winter causes potentially fatal metabolic disruption. Climate-related changes to the timing of flowering and fruiting can mismatch with dormouse breeding season requirements, reducing chick feeding success. Woodland management that restores coppice cycles, increases shrub layer diversity, and maintains connectivity between woodland patches is the most impactful intervention for dormouse welfare.

What You Can Do

Support woodland conservation organizations restoring coppice management and shrub layer diversity
Avoid disturbing potential dormouse hibernation sites including log piles and bramble patches in winter
Participate in dormouse monitoring programs using licensed surveying techniques
Advocate for habitat connectivity planning that links woodland habitats across farmland landscapes