Foraging Habitat Preference of Black Woodpeckers in Broad-leaved Korean Pine Forests
From winter 2020 to winter 2022,the foraging habitat preference of black woodpeckers(Dryocopus martius)was investigated by using transect method and plot method in Liangshui National Nature Reserve of Heilongjiang Province.At the microhabitat scale,the species and state of feeding tree of black woodpecker were significantly different from that of the control plot(p<0.05).Black woodpeckers preferred to forage on Abies fabri(47.71%)and selected semi-dead stand-ing trees(73.86%)in most cases.Generally,this bird feed on the main trunk(86.93%)and preferred to forage on the middle upper part(43.14%)and upper part(32.03%)in terms of foraging site.In the square foraging scale,black wood-peckers preferred to forage in natural forests(96.73%)with canopy gap(92.16%),with preference to the foraging habitats with lower canopy density,lower average height of dominant trees,larger average diameter of dominant trees,less living standing trees in the plot,more dead standing trees and fallen trees,and short distance to human disturbance.The results of the resource selection function showed that the key factor affecting black woodpecker foraging habitat preference was for-aging tree species and the secondary key factors were the number of dead standing trees,average height of dominant trees,height of foraging trees,and the number of fallen trees.
Black woodpecker(Dryo-copus martius)Foraging habitat preferen-ceBroad-leaved Korean pine forestResource selection functi-ons
NETL
NSTL
万方数据
