Pine Marten, Martes martes, as a Eurasian Beaver, Castor fiber, lodge occupant and possible predator

Abstract

We trapped three adult Eurasian Pine Martens (Martes mattes) at an earlier trapped-out Eurasian Beaver (Castor fiber) lodge in southern Norway. At another site, Pine Marten feces containing remains of beaver claws and hair were found outside a beaver lodge. Pine Martens apparently feed on beavers and use their abandoned lodges as resting sites.