Wildlife Welfare: Pine Marten Return and Red Squirrel Conservation

Pine marten recovery in the UK is having unexpected conservation benefits for red squirrels, with welfare and ecosystem management implications.

Key Facts

Pine martens were virtually extinct in England and Wales, confined to remnant Scottish populations
Reintroductions to Wales (2015-2017) and Forest of Dean (2019-2020) are expanding the population
Research shows that pine marten presence is associated with grey squirrel decline and red squirrel recovery
Grey squirrels spend more time on the ground and are more vulnerable to pine marten predation
Pine martens are recovering naturally in Scotland, supporting red squirrel strongholds

Welfare Considerations

Pine marten recovery creates complex welfare trade-offs - individual grey squirrels suffer predation mortality, while red squirrel welfare improves through reduced competition. This is a paradigm case of ecosystem-level welfare thinking, where restoring natural predation pressure produces welfare benefits at the population level for native species, at some welfare cost to individual members of the invasive species. Conservation translocation of pine martens must be accompanied by welfare-conscious capture, transport and release protocols.

What You Can Do

Support pine marten conservation and reintroduction programmes
Learn about the ecological interactions between pine martens, grey squirrels and red squirrels
Donate to the Vincent Wildlife Trust pine marten recovery programme
Advocate for ecosystem-based approaches to grey squirrel management that include pine marten recovery