Abstract
Brown bear ( Ursus arctos L.) populations in the forest zone form communicative systems of marks left primarily on trees. This species also inhabits areas with low forest cover, including the subalpine belt. We studied the communication systems of brown bear populations in 2007-2009 in the Western Sayan, in the Ergaki natural park. The purpose of the study was to identify signs of the life activity of the brown bear in the subalpine belt, which could be used by these animals for indirect communication. We registered a total of 120 bear trees (BT) among which Siberian pine ( Pinus sibirica ) prevailed (83.3%). The linear frequency of marking was registered low: 2.66 BT per 10 km of the route. We found increased incidence of damaging marks and footprint marks left by adult males. Cluster analysis of data by 15 types of bear marks revealed two major groups: marks left by adult males and “marks” that bears of all age and sex groups are capable to leaving on BT.
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Schedule a callMore From: Bulletin of Udmurt University. Series Biology. Earth Sciences
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