牛背梁保护区的兽类资源现状

Mammal condition of Niubeiliang National Nature Reserve in Shaanxi

报道了调查牛背梁保护区的兽类动物资源状况．结果表明，该保护区兽类计有６０种，其中国家Ⅰ级保护动物２种，Ⅱ级６种，省级１种．区系组成：东洋界种类占５７．６％，古北界占２５．４％，广布种占１７．０％．文中阐明了区内动物资源存在的主要危胁因素及其产生的原因．

The mammals in Niubeiliang National Nature Reserve, Shaanxi were investigated from April to August, 1996. The mammals total 60 species in the Reserve. The species number of the Oriental Region is predominant: of the 60 species, there are 34 (57.6%) Oriental species, 15(25.4%) Palaerctic species and 10(17.0%) widespread species. There are 8 species of national protected mammals in China among the 60 species. This paper presents some basic factors that will endanger the mammals and their cause.