Pine Marten Recovery and Red Squirrel Benefit

The pine marten has recovered across Scotland and is being reintroduced in Wales and England, with evidence that marten presence benefits red squirrel populations.

Key Facts

Pine martens were near-extinct in England and Wales by the early 20th century
Scottish pine marten populations have recovered to an estimated 3,500 individuals
Research shows grey squirrel abundance declines in areas where pine martens recover
Grey squirrels are more vulnerable to marten predation than red squirrels due to behavioural differences
Pine marten reintroduction to Wales began in 2015 with population growth observed

Welfare Considerations

Pine marten welfare is affected by road traffic mortality, habitat fragmentation, and illegal killing. Individual martens killed on roads may suffer from traumatic injuries before death. The ecological interaction between martens and grey squirrels provides an interesting conservation and welfare nexus — marten predation affects individual grey squirrel welfare but may benefit red squirrel population viability. Conservation of pine martens as an apex predator benefits woodland ecosystems and indirectly supports the welfare and survival of native prey species adapted to coexist with marten predation.

What You Can Do

Support pine marten conservation and reintroduction programmes in Wales and England
Report pine marten sightings to the Vincent Wildlife Trust for population monitoring
Advocate for road crossing structures in pine marten habitat to reduce road mortality
Create forest habitat connections enabling pine marten range expansion