Wildlife

Hazel Dormouse Welfare in Managed Woodland

Hazel dormice are declining due to loss of coppice woodland management and poor woodland connectivity, spending half their year in hibernation making welfare monitoring challenging.

Key Facts

Dormice populations have declined by 51% in the UK since 2000
They spend up to 7 months in hibernation, their long inactivity making disturbance particularly harmful
Hazel dormice require connected woodland corridors to move between sites
Loss of traditional coppice management has removed their preferred dense shrub layer
Climate change is causing mismatches between spring emergence and food availability

Welfare Considerations

Disturbance during hibernation causes arousal that consumes critical fat reserves; multiple arousals can cause starvation before spring. Loss of woodland connectivity isolates populations below viable thresholds. Dormice in fragmented woodlands show increased road mortality during dispersal. Climate-driven changes in spring phenology cause mismatches with food availability at emergence. Inappropriate woodland management removing shrub layer reduces food and nesting sites.

What You Can Do

Support coppice woodland management programs maintaining dormouse habitat
Donate to People's Trust for Endangered Species dormouse monitoring
Advocate for woodland connectivity programs linking isolated dormouse populations
Support hedgerow management providing dormouse dispersal corridors
Never disturb dormouse boxes during the hibernation period