Dormouse Habitat Creation: Evidence-Based Welfare Gardening

Creating dormouse-friendly habitat in gardens and green spaces is an evidence-based welfare contribution to Britain's most endangered small mammal.

Key Facts

Hazel dormice need a mosaic of species-rich woodland and scrub with hazel, honeysuckle, and bramble.
Dormice are almost entirely arboreal — they rarely descend to the ground, making habitat connectivity through continuous canopy essential.
Garden nest boxes provide essential nesting sites in areas where natural holes in trees are scarce.
Dormice breed once annually (June-July); nest boxes checked outside this period may reveal hibernating individuals.
People's Trust for Endangered Species (PTES) coordinates the National Dormouse Monitoring Programme.

Welfare Considerations

Dormouse welfare in fragmented landscapes is threatened by habitat isolation: populations cut off by roads, agricultural land, and development face local extinction through genetic bottlenecking and inability to recover from local catastrophes. Individual dormice in depleted habitats experience reduced foraging success and poorer overwintering condition. Habitat creation welfare benefits include: providing the hazel, honeysuckle, and bramble that constitute dormice's primary food sources; creating nest box networks that replace lost natural cavity nesting sites; and establishing canopy connectivity that allows population movements between habitat patches. PTES box-checking protocols specify minimal disturbance during nesting season and careful handling by trained monitors. Community dormouse projects demonstrate that volunteer-led habitat creation makes a measurable contribution to population welfare.

What You Can Do

Plant native hazel, honeysuckle, and bramble in your garden to create dormouse habitat and food resources.
Erect dormouse nest boxes on trees at height following PTES guidance.
Join your local dormouse group through PTES to participate in monitored nest box schemes.
Advocate for wildlife corridors in local planning that maintain habitat connectivity for dormice.
Donate to Woodland Trust coppice restoration projects which are critical for dormouse population recovery.