黄鼠巢和宿主密度的年间动态关系

根据内蒙古自治区正镶白旗乌宁巴图苏木1981～1993年达乌尔黄鼠Citellus dauricus密度和巢蚤指数监测资料进行分析，得到如下结果。共检巢蚤10种，其中方形黄鼠蚤蒙古亚种Citellophilus tesquorum mongolicus(45.4%)为优势蚤种，光亮额蚤Frontopsylla lucu lenta(25.0%)和阿巴盖新蚤Neopsylla abagaitui(21.3%)为次优势蚤种。二齿新蚤N.Bidentatiformis和角尖眼蚤Ophthalmopsylla praefecta为常见种，余为少见种。鼠密度与巢蚤指数 的关系不显著(p>0.10)、与巢染蚤率关系显著(p<0.05)，不同年份的蚤类多样性和均匀性比较稳定。巢蚤和体蚤指数的关系是显著的(PP<0.005)。

THE YEARLY DYNAMICS RELATIONSHIP BETWEEN BURROW NEST FLEA INDEX AND POPULATION OF CITELLUS DAURICUS

According to the fluctuation of population of CiteUus dauricus and its nest flea index in Wuningbatu Sumu, Zhengxiangbai Banner, Inner Mongolia Autonomous Region during 1981-1993, the authors have found that there are ten flea species with CiteUophilus tesquorum mongolicus (45.4%) as the most dominant member, Frontopsyllaluculenta (25.0O%) the second and Neopsylla abagaitui (21.3%) the third. N. bidentatiformis and Ophthalmopsylla praefecta are only of common occurrence whereas otherspecies are rather scarce. The correlation between the host population and its burrow nest flea index is not significant (P>0.10). But the correlation between the host population and the flea infection rate of its burrow nest is significant (P<0.05). The diversity and evenness of flea species seem stable in different years. Furthermore, the correlation between the body flea index and burrow nest flea index is significant (P<0.02), I.E. , burrow flea index=4. 08494-8. 7483 body flea index. The mean value of the burrowflea index is 9.74 times as high as that of the body flea index, and the difference between them is significant (P<0.005).