Wildlife

Wild Dormouse UK Decline and Conservation

Hazel dormice have declined by approximately 50% in the UK since 2000. Understanding threats and conservation interventions is critical for this protected species.

Key Facts

Hazel dormice are protected under the Wildlife and Countryside Act 1981
Population has declined by approximately 51% since 2000
Habitat loss and fragmentation are primary drivers of decline
Dormice are obligate hibernators, sleeping for 7 months
They require a continual supply of flowering and fruiting shrubs through summer and autumn

Welfare Considerations

Dormice disturbed during hibernation face life-threatening energy expenditure. Habitat fragmentation isolates populations, increasing inbreeding and reducing food availability. Conservation interventions including habitat management, nest box provision, and wildlife corridors improve both welfare and population viability.

What You Can Do

Support the People's Trust for Endangered Species dormouse conservation programme
Record dormouse sightings on national monitoring schemes
Manage garden hedgerows to provide continuity of food supply through the season