动物学研究2013，Vol.34Issue(3)：166-173,8.DOI:10.11813/j.issn.0254-5853.2013.3.0166
莫莫格自然保护区白鹤秋季迁徙停歇期觅食生境选择
Foraging habitat selection of Siberian Crane (Grus leucogeranus) during autumn migration period in the Momoge Nature Reserve
摘要
Abstract
In autumn of 2008 and 2009,we studied the foraging habitat selection of Siberian Crane (Grus leucogeranus) in the Momoge Nature Reserve of Jilin province.Using the resource selection index,resource selection functions,and the chi-squared test,we found that the Siberian Crane exhibited selectivity in their preferred foraging environments in relation to the distance to human disturbances,vegetation density,coverage and height,foraging vegetation density and water level.Interestingly,this selectivity in regards to large scale disturbances was lower than other factors.The characteristics of favorite foraging habits of Siberian Cranes include a variety of factors:a distance ＞5000 m from a national highway,＞1500 m from a non-gravel road,＞1000 m from the nearest road,＞1000 m from a residential area,＞1000 m from farmland; plant density between 20 and 50 grass/m2; plant coverage lower than 10％; plant height lower than 20 cm; Scirpus planiclmis density between 1 and 50 grass/m2; Scirpus triqueter density between 1 and 10 grass/m2; and the water level between 40 and 60 cm.The resource selection functions of Siberian Crane foraging habitat in autumn can be described thusly:Logistic (P) =0.663 + 0.565×distance to national highway + 0.042×distance to non-gravel road + 0.519×distance to the nearest road + 0.353×distance to residential area + 0.169×distance to farmland-0.455×vegetation density-0.618×vegetation coverage-0.548×vegetation height-0.158×Scirpusplaniclmis density-0.404×Scirpus triqueter density + 0.920 ×water level,T (x) =eLogistic(p) / [1 + eLogistic(p)],with an overall prediction accuracy of 82.9％.关键词
白鹤/觅食生境选择/资源选择指数/资源选择函数Key words
Siberian Crane (Grus leucogeranus)/ Foraging habitat selection/ Resource selection index/ Resource selection functions分类
生物科学引用本文复制引用
孔维尧,郑振河,吴景才,宁宇,王永,韩晓东..莫莫格自然保护区白鹤秋季迁徙停歇期觅食生境选择[J].动物学研究,2013,34(3):166-173,8.基金项目
"十一五"林业科技支撑项目(2006BAD03A1901) （2006BAD03A1901）
