There is a growing focus among ecologists on the importance of predatory in
teractions between competing species, but because of its mixed character, i
t is difficult to pinpoint the possible, competitive component of the inter
action. We tested degree of prey consumption in intraguild predation of Eur
asian lynxes on red foxes against assumed 'pure' predation, i.e. roe deer a
nd mountain hares. The proportion of uneaten fox carcasses was highly signi
ficantly larger than the proportion of both other prey species, indicating
that interference competition may play a role in the intraguild predation o
f lynxes on red foxes.