Wildlife

Pine Marten Impact on Red Squirrel Populations

Pine martens, recovering in parts of the UK and Ireland, appear to benefit red squirrels by suppressing grey squirrel populations.

Key Facts

Grey squirrels are less adept at escaping pine marten predation than red squirrels
Studies in Ireland show red squirrel recovery correlating with pine marten presence
Pine martens were extirpated from much of the UK through persecution and habitat loss
Pine marten reintroductions to Wales and England are now underway

Welfare Considerations

Pine martens prey on grey squirrels, which are themselves sentient animals. Managing this relationship for conservation outcomes should consider the welfare of all species involved.

What You Can Do

Support pine marten reintroduction programmes in suitable habitat
Engage with debates on grey squirrel management that consider welfare
Follow research on trophic cascades and multi-species welfare outcomes