Emerging evidence suggests that pine marten recovery may suppress grey squirrel populations through predation, potentially reducing the need for grey squirrel culling while supporting red squirrel conservation. This creates interesting welfare considerations.
The pine marten and grey squirrel dynamic presents a welfare trade-off worth examining. Pine marten predation of individual grey squirrels causes acute welfare costs to those individuals. However, if pine marten recovery reduces the need for extensive grey squirrel culling programmes, the aggregate welfare impact may be positive by reducing the scale of managed killing. Natural predation and managed culling both cause individual animal deaths, but the former is self-regulating and does not require ongoing human intervention. The welfare implications of this ecological solution versus management-heavy approaches merit honest assessment.