Ranienie drzew przez niedźwiedzia brunatnego (Ursus arctos) w Bieszczadach

Authors :: Zyśk-Gorczyńska, Ewa
Jakubiec, Zbigniew
Publication Year :: 2014
Publisher :: Polskie Towarzystwo Leśne, 2014.
Abstract: Debarking of trees and foraging on the phloem is an economical problem for forestry in North America. Scientists in America investigated the feeding behavior of black bears (Ursus americanus) during the spring while this problem was only partially investigated in Poland. In the Polish Carpathians most damage occurs on coniferous trees such as fir Abies alba, larch Larix decidua and spruce Picea abies.<br />Sylwan 158 (5): 377-382