云南西部小兽革螨群落相似性及分类研究

目的：探讨云南西部９种主要小兽体表革螨群落之间的相似性及移行规律，并对其进行数量分析。方法：模糊聚类分析。结果：黄胸鼠、褐家鼠及小家鼠体表革螨群落之间的相似性大，基本属于家鼠型革螨群落；卡氏小鼠、齐氏姬鼠及大绒鼠体表革螨群落为典型的野鼠型革螨群落；大足鼠、灰麝鼠句及大臭鼠句体表革螨群落界于两者之间，呈一过渡移行型。整个聚类过程显示出家鼠型革螨群落向野鼠型革螨群落逐级并类的趋势。结论：小兽宿主的生境分布对其体表革螨群落类型的影响突出，在生境选择相近的前提下，小兽宿主在动物分类上的关系越近，其体表革螨群落相似程度越高。

STUDIES ON THE SIMILARITY AND CLASSIFICATION OF GAMASID MITE COMMUNITIES ON SMALL MAMMALS IN THE WEST OF YUNNAN PROVINCE

AIM: To illustrate the similarity, transitional tendency and classification of gamasid mite communities on nine dominant species of small mammals in the west of Yunnan Province. METHOD: Fuzzy clustering analysis. RESULTS: The similarity among the gamasid mite communities on Rattus flavipectus, Rattus norvegicus and Mus musculus was prominent. These gamasid mite communities tended to be the type of house rats. The gemasid mite communities on Mus caroli, Apodemus chevrieri and Eothenomys miletus were proved to be the type of field rats. The gamasid mite communities on Rattus nitidus, Crocidura attenuata and Suncus murinus were the type of transitionals, being intermediate between the types of house rats and field rats in the fuzzy clustering phenogram. The whole fuzzy clustering process showed a tendency from the type of house rats to the type of field rats. CONCLUSION: The types of gamasid mite communities mainly depend upon the habitat preference of the corresponding hosts, small mammals. Under the similar habitat circumstances, the closer the hosts in taxonomy are, the more similar the gamasid mite communities on them will be.