中文摘要：

2005年的4～7月,采用样方法和直接观察法,对甘肃省盐池湾自然保护区喜马拉雅雪鸡(Tetraogallus himalayensis)的巢址选择进行了研究。共测量16个巢址。研究表明,喜马拉雅雪鸡的巢主要分布于3 301～3 500 m之间、多在灌丛草地和高山岩石草地、灌木下或草丛中及突出大石下、中坡以上的坡位、坡度26°～40°之间的阳坡和半阳坡上营巢。主成分分析结果表明,影响巢址选择的主要因子可分为捕食因子和食物因子两类,捕食因子在雪鸡巢址选择中占据了首要地位。其主要因子依次为地面异质性、灌丛高度、灌丛宽度和附近(500 m内)悬崖的数量。

英文摘要：

An experiment was conducted to investigate the nest-site selection of the Himalayan Snowcock(Tetraogallus himalayensis) in Yanchiwan Nature Reserve of Gansu Province by the methods of direct observation and sampling from April to July,2005.Totally 16 nests were measured in this study.The indexes of altitude,grade of slope,slope aspect,slope location,species richness,cover of grasses,density of grasses,heterogeneity of ground environments,distance to cliff and grassland,quantity of cliff in 500 m,degree of c...