利用Vanderloge和Scavia选择指数方法研究了甘肃白水江国家级自然保护区羚牛(Budorcas taxicolor)、鬣羚(Capricornis sumatraensis)、斑羚(Naemorhedus goral)和毛冠鹿(Elaphodus cephalophus)4种有蹄类动物在栖息地选择上的差异。结果表明:体形小的种类更倾向于选择低海拔植被类型;地貌方面,斑羚倾向于脊部,毛冠鹿倾向于谷地,鬣羚倾向于坡面和谷地,羚牛呈现随机选择;羚牛、鬣羚、斑羚对5 km内的居民点表现出回避。4种动物对栖息地植被、地貌和居民点距离的选择,反映出其生态位的分化。

In this study,we investigated the difference of habitat selection patterns among four ungulates,Takin(Budorcas taxicolor),Serow(Capricornis sumatraensis),Goral(Naemorhedus goral)and Tufted deer(Elaphodus cephalophus)living in Baishuijiang National Nature Reserve,Gansu Province.This investigation involved 3336 pieces of effective habitat selection data(vegetation,land form and distance from residential area).We used Vanderloge and Scavia indexes to analyze these data in order to conclude a habitat selection preference of these four species.Our results indicate that small species prefer low-altitude habitat.In terms of topography,Goral prefers ridge,Tufed deer prefers valley,Serow prefers slopes and valley,while the selection pattern of Takin is at random.Except Tufted deer,all the rest three of these four species avoid using habitat less than 5 km away from their residential areas.Habitat selection patterns of these four species reflected the differentiation of their niches.