Activity of European beavers (Castor fiber L.) in young pedunculate oak (Quercus robur L.) forests (CROSBI ID 137882)
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Podaci o odgovornosti
Margaletić, Josip ; Grubešić, Marijan ; Dušak, Vesna ; Konjević, Dean
engleski
Activity of European beavers (Castor fiber L.) in young pedunculate oak (Quercus robur L.) forests
Beaver were brought into Posavina part of Croatia in the period from 1996 to 1998. The research of their influence on specifically conditions lowland forest was carried out in March 2003 in the young pedunculate oak forests (Quercus robur L.), and included the analysis of numbers of damaged trees and bushes, the presence of certain plant species in the field and measuring the height of damages and diameter under the damaged place. The percentage of damaged trees and bushes was carried out on the sample of 1648 plants analysed on seven transects. 75 % of plants were undamaged. The most frequently damaged species was C. avellana. 200 plants were used as samples for measuring the height of damages and the diameter under the place of damages. Most plants were damaged on the height between 30 and 40 cm, and the diameter on the place of the damage was from two to four cm.
beaver ; Castor fiber ; lowland forests ; damage
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