青海牦牛的类群特征与生态环境的关系研究

Relationship between Environment and Population Characteristics of Yak in the Qinghai Province

采用生态地理比较分析法,根据青海牦牛类群分布的自然环境特点,研究了青海牦牛形成与分布的自然生态规律,青海牦牛不同类群的体型结构(体尺、体型结构)与生态因子(海拔、气温、降雨量、植被状况)的相关规律。结果表明:为了适应不同的生态环境,青海不同类群的牦牛的体型指标、生理指标有明显的差异。

Based on the environmental characteristics of yak populations distributed in the Qinghai province, the natural ecological rule in the formation and distribution of Qinghai yak as well as the related rules of body structure （body size, body shape） and ecological factors （altitude, air temperature, rainfall and vegetation status） of Qinghai yak were investigated using the method of eco-geographic comparison analysis. The results showed that the significant differences in the index of body and physiology about different Qinghai yak populations, for adapt to different environmental conditions.