生态学报2018，Vol.38Issue(2)：493-501,9.DOI:10.5846/stxb201609261942
蓝冠噪鹛繁殖期生境选择特征分析
Habitat selection of the Blue-Crowned Laughingthrush during the breeding season
摘要
Abstract
We investigated breeding groups of the Blue-crowned Laughingthrush (Garrulax courtosis) from April—July in 2013-2015 in Wuyuan,Jiangxi Province.For each breeding plaque,we measured the altitude,distance from mountain,water resource,and disturbance,we also calculated the area,perimeter,and shape index of the plaques.We set four control plaques (5km away from the breeding plaques) in the same forest type as that of the breeding plaques.Thereafter,we compared the breeding and control plaques for the factors mentioned above.The results showed that the altitude,distance from mountain,and disturbance of the breeding plaques were significantly smaller than that of the control plaques.The laughingthrush preferred to breed in low altitude,broad-leaved forests close to the mountain and village.This might be related to abundance of food and lower density of predators in these areas.At the microhabitat scale,we chose breeding site B as the study area,because it was the most stable.We measured 10 factors in the breeding area and the control area without nests of laughingthrush in the same forest.The 10 factors were analyzed with resource selection functions and selectivity coefficient of Vanderploeg and Scavia.The result of resource selection functions indicated that herb density and herb height were the main factors influencing habitat selection of the laughingthrush at microhabitat scale.However,the regression coefficient demonstrated that the laughingthrush preferred to build its nests on Celtis tetrandra,Liquidambar formosana,and Pterocarya stenoptera,with height ＞20m and diameter at breast height (DBH) 40-80cm,in an area with moderate-high herb coverage (60％-90％).In conclusion,these results suggested that the laughingthrush was selective for the nesting tree species,and its height and DBH.In addition,they required moderate-high herb coverage under the nesting tree.Herb density might reflect the availability of insects,which was the main food in the breeding season.This finding indicated the laughingthrush chose to nest in the area with better food abundance.关键词
蓝冠噪鹛/生境选择/繁殖生境/微生境尺度/资源选择函数Key words
blue-crowned laughingthrush/habitat selection/breeding plaque/microhabitat scale/resource selection functions引用本文复制引用
黄慧琴,刘涛,石金泽,刘鹏,张微微..蓝冠噪鹛繁殖期生境选择特征分析[J].生态学报,2018,38(2):493-501,9.基金项目
国家自然科学基金项目(31360521,31660608) （31360521,31660608）
国家科技支撑项目(2012BAC11B02) （2012BAC11B02）
江西省科技计划项目(20133BBG70004,20132BAB214013) （20133BBG70004,20132BAB214013）
