The composition of trees with the signs of brown bear activity of Upper Pechora and Western Sayan
The materials collected at Upper Pechora (2002, 2004, 2005 years) and at Western Sayan (2007-2009 years) are analyzed. 1724 trees of six species with the signs of brown bear activity were described in total. There were 3 functional types of recorded trees: the bear trees, the carcass trees and the defensive trees. The carcass trees and the defensive trees were rare in both of regions. The bear trees were divided according to species belonging and for four groups about the time behavior of marking.