Dormouse Conservation Welfare in the UK

The hazel dormouse is a protected species in serious decline in the UK, with welfare implications from habitat fragmentation, cold weather and nest disturbance.

Key Facts

Hazel dormice have declined by around 70% in the UK over the past 20-30 years
They spend approximately half the year in hibernation, making them vulnerable during torpor
Dormice are strictly nocturnal and rarely seen, making population monitoring challenging
Nest box schemes have become a key conservation tool, providing artificial nesting sites
Dormice require continuous hedgerow and woodland connectivity for movement and foraging
Climate change is disrupting hibernation timing, with dormice emerging into periods of food scarcity

Welfare Considerations

Dormice face welfare risks from multiple sources: disturbance during hibernation (which depletes fat reserves and can be fatal), habitat fragmentation preventing access to food resources, and climate disruption causing mismatches between emergence timing and food availability. Legal protection makes disturbance of dormice or their nests an offence. Conservation work - checking nest boxes, monitoring populations and restoring hedgerow connectivity - must be done under appropriate licensing to minimise welfare impacts. Rewilding and hedgerow restoration directly benefit dormouse welfare.

What You Can Do

Support Peoples Trust for Endangered Species dormouse conservation programmes
Plant hazel, bramble and honeysuckle in gardens to provide dormouse food sources
Maintain hedgerow connectivity on land where you have influence
Report dormouse sightings to county wildlife trusts for population monitoring
Avoid disturbing woodland undergrowth and hedgerows during dormouse hibernation (October-April)