Mature stand developmental stage has ceased to constitute the most suitable habitat for the capercaillie in the Augustow Forest,Poland

作     者：Stanisław Drozdowski Dorota Zawadzka Grzegorz Zawadzki Marcin Studnicki Bogdan Brzeziecki Stanis?aw Drozdowski;Dorota Zawadzka;Grzegorz Zawadzki;Marcin Studnicki;Bogdan Brzeziecki

作者机构：Institute of Forest SciencesWarsaw University of Life SciencesNowoursynowska 15902-776 WarszawaPoland Department of Forest SciencesUniversity of LodzBranch in Tomaszow MazowieckiKonstytucji 3 Maja 65/6797-200 Tomaszow MazowieckiPoland Institute of AgricultureWarsaw University of Life SciencesNowoursynowska 15902-776 WarszawaPoland 

出 版 物：《Forest Ecosystems》 (森林生态系统（英文版）)

年 卷 期：2021年第8卷第4期

页      面：685-698页

核心收录：

学科分类：09[农学] 0903[农学-农业资源与环境] 

主　　题：Habitat suitability Lek occupancy Logistic regression Lowland forest Stand structure Tetrao urogallus 

摘      要：Background:Forest management affects the habitat conditions for many forest-dwelling *** them,the capercaillie(Tetrao urogallus)is a rare forest grouse inhabiting old,mature *** compared the structure of forest habitat among 9 active and 9 abandoned leks in the Augustow Forest(North-Eastern Poland),within a radius of 1 km of the leks,defined as the Key Areas for the capercaillie in lowland temperate *** measurements were conducted on 1779 circular *** made on all plots related to 13 habitat variables measured or noted in the field,including stand structure,canopy closure,stand developmental stage,percentage of Scots pine(Pinus sylvestris),soil fertility and soil moisture,the share of undergrowth,the cover of shrubs,the cover of bilberry(Vaccinium sp.),and the presence of certain habitat elements important to the ***:To compare the still-occupied and the abandoned KAs for the capercaillie,a logistic regression model was *** variables best explaining differences between these two categories were:the occurrence of undergrowth layers,canopy closure in the second canopy layer,and stand *** to the model,with the increase of the shrub-layer cover as well as the density of trees,the probability of the presence of the capercaillie *** capercaillie in the area of the Augustow Forest occupy mainly dry and poor,middle-aged,pinedominated forests,with a moderate extent of stand canopy closure and only weakly-developed layers of ***:The filling-in of mature stands with sub-canopy trees and shrubs(the process which is stimulated by climate change and site eutrophication)causes structural changes,which are unfavourable to the *** might explain why in the course of the recent decades the capercaillie has abandoned the oldest stands,distinguished by the presence of bigger shares of *** capercaillie has shifted to younger stands,which reveal a lesser ex