几种鼠体寄生蚤种间协调格局的研究

A Study on the Pattern of Interspecific Association among Fleas on Several Species of Rats

笔者对贵州都匀市郊农耕地４种常见鼠寄生蚤种的空间关系进行了测定和研究。结果表明，某些蚤种在某种鼠体表分布呈现正协调关系，另一些则呈负协调关系。

The pattern of interspecific association among fleas on 4 dominant species of rats was studied,the preliminary survey was made in 1986 and 1987 at the suburbs of Duyun,Guizhou Province.The coefficient of association was used in the paper, the result showed that:1.Neopsylla specialis specialis and Leptopsylla segnis on Apodemus chevrieri presented positive association(V=0.74,P<0.01):2.N.s.specialis and Ctenophthalmus eothenomus on Apodemus agrarius presented positive association(V=0.68,P<0.01):3.There was apparently negative association between N.s.specialis and C.eothenomus on Mus pahari(V=0.47,P<0.05 ):4.C.eothenomus and C.breviprojiciens on Eothenomys miletus presented positive association(V=0.40,P<0.05):so did N.s.specialis and C.eothenomus,N.s.specialis and C.breviprojiciens on E. miletus(V=0.6s,P<0.01:V=0.42,P<0.01).