Pine Marten Diet Ecology and Conservation Welfare

Pine martens are recovering in parts of the UK and Ireland after centuries of persecution, with their ecological role as predators having both conservation and welfare dimensions.

Key Facts

Pine martens were virtually extinct in England and Wales by the early twentieth century due to persecution and habitat loss
Reintroductions in Wales (2015) and England (2019) are establishing new populations in suitable woodland habitats
Pine martens prey on small mammals, birds, invertebrates, and seasonal fruits including rowan and bilberry berries
Evidence from Ireland shows pine marten recovery may suppress invasive grey squirrel populations, benefiting red squirrels
Pine martens require large territories of woodland with suitable den sites in hollow trees or crevices

Welfare Considerations

Pine marten welfare considerations span both the martens themselves and their prey and competitors. Recovering pine marten populations still face persecution from illegal poisoning and trapping, which causes suffering and slows population recovery. Individual martens have large territories that require extensive woodland connectivity — fragmented habitats limit movement and increase road mortality risk. The ecological interaction between pine martens and grey squirrels benefits red squirrel welfare indirectly through competitive suppression of greys in marten-occupied areas. Ensuring safe passage across roads through underpasses and rope bridges reduces road mortality.

What You Can Do

Support pine marten reintroduction and monitoring programmes in England and Wales
Report illegal pine marten persecution to the Wildlife Crime Unit
Create woodland habitat connectivity by planting trees and maintaining hedgerow networks
Contribute to Mammal Society pine marten recording to track population recovery