罗尼神山矮岩羊(Pseudois schaeferi)集群和生境选择初报  

A Primary Study on Group Type and Habitat Selection of Dwarf Blue Sheep (Pseudois schaeferi) in Luoni Mountain

作　　者：刘国库[1] 周材权[1] 杨志松[1] 廖文波[1] 黄燕 李庆涛 

机构地区：[1]西华师范大学生命科学学院珍稀动植物研究所,四川南充637009 [2]白马雪山自然保护区奔子栏管理所,云南奔子栏674501

出　　处：《西华师范大学学报（自然科学版）》2010年第2期114-121,共8页Journal of China West Normal University(Natural Sciences)

基　　金：国家自然科学基金资助项目(No.30570275;30770256);四川省青年科技基金资助项目(06ZQ026-025);四川省教育厅预研资助项目(2005C1011);四川省重点学科基金资助项目(No.SZD0420);教育部新世纪优秀人才支持计划

摘　　要：报道了白马雪山自然保护区罗尼神山矮岩羊的种群生态学的初步调查资料,调查期间共观察到矮岩羊7群,准确记录6群,其中母子群5群,雌性群1群.共记数25只矮岩羊,种群平均大小为4.17±2.56只,最大集群9只,最小2只.矮岩羊偏爱灌丛和仙人掌灌丛、隐蔽级中等、坡位中位或中下位、坡度较大、人为干扰较弱、距水源和裸岩较近、灌木高度1-2m、灌木盖度>50%以及草本盖度较小的东坡或南坡生境.矮岩羊生境因子主成分分析表明前4个特征值的累积贡献率已经达到了84.69%,其可以较好地反映矮岩羊选择的生境特征,影响矮岩羊生境的三个主要因素为食物资源、水源和安全性.A primary study on population ecology of Dwarf Blue Sheep （Pseudois schaeferi） was carried out in Baimaxueshan Nature Reserve in Luoni Mountain in September,2009. The results showed that 6 groups with totally 25 individual blue sheep, including 5 mother-baby groups and 1 female groups, were observed accurately. The mean group size was 4.17 ± 2.56, ranging from 2 to 9 individuals. The preferred habitat of Dwarf Blue Sheep included shrub and cactus shrub 1 -2m high with shrub canopy over 50% and lower grass canopy,middle slopes or low and middle slopes, near water and barerook with less human disturbance, in east or south aspect. The principal component analysis showed that the first four principal components can explain 84.69% of the total variance, which may reflect the preferred habitat characters. The PCA also identified the following 3 factors food resource, water and safety as key axes of variation in Dwarf Blue Sheep.

关 键 词：矮岩羊 种群生态 白马雪山自然保护区 

分 类 号：Q958[生物学—动物学]