布氏田鼠数量和空间分布的年际动态及周期性初步分析  

PRELIMINARY ANALYSIS OF ANNUAL FLUCTUATION OF BRANDT'S VOLE(MICROTUS BRANDTI)

作　　者：房继明[1] 孙儒泳[1] 

机构地区：[1]北京师范大学生物学系

出　　处：《动物学杂志》1994年第6期35-37,共3页Chinese Journal of Zoology

基　　金：国家攻关项目

摘　　要：布氏田鼠的分布特点是避开山丘、季节河河床和芨芨文草滩；主要分布在季节河两侧，分布区缩小时，向季节河两侧收缩。布氏田鼠年动态是否有周期性尚难以下最后的结论，但存在季节动态是可以肯定的。布氏田鼠在其地理分布中心区和边缘区的种群年际动态可能存在差异，中心区的种群动态相对可能稳定些，边缘区的种群波动可能大些。This Study Was Conducted at the border district of geographical distribution of Brandt's voles.The voles preferred the both sides of seasonal rivers as their main habitat of spatial distribution rather than the riverbed and the hilly land,especially when the vole spatial distribution area was narrowed year after year. It was still difficult to conclude its annual cyclical fluctuations Although the seasonal fluctuation of the vole was known. The difference between the central or border districts of vole geographical distribution might be existed in the vole annual cyclical fluctuation.The annual fluctuation of vole population was more significant in the border districts than in the central areas.

关 键 词：种群数量 空间分布 年动态 布氏田鼠 啮齿目 

分 类 号：Q959.837[生物学—动物学]