贺兰山岩羊种群结构的季节性变化

余玉群郭松涛白庆生李志刚胡天华吕海军

The Seasonal Change of Blue Sheep Population

YU Yuqun GUO Songtao BAI Qingsheng LI Zhigang HU Tianhua LU Haijun

. 2004, (3): 200 -204 .