During the last four decades, a decrease in ermine pelt procurement has been noted in Yakutia. To determine the possible reasons for this, material on the ecology of ermine and sables in Northeast Yakutia was collected from 1980–1994. The study examined 2890 sable stomachs for feed, and 1167 ermine skulls for Skrjabingylus infection. It was revealed that ermine are hunted by sables,but their …