The parasitic rate of Ixodes persulcatus (54, 5%) on Apodemus agrarius and the parasitic index of Dermatcentor sih'artnn (17. 8) on Eulantias sibiricus are the highest.

黑线姬鼠体全沟硬蜱幼、若蜱的寄生百分率（54.5％）和花鼠体森林革蜱幼、若蜱的寄生指数（17．8）最高。

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The authors had collected 3 species of miniature mammals from habitat of Ranodon sibiricus, and researched interspecific relationship bet- ween Ranodon sibiricus and every miniature mammals.

在新疆北鲵栖息地捕获了三种小型兽类，并讨论了这三种小型兽类与新疆北鲵之间的种间关系。

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The paper is to illustrate the significance of Ranodon sibiricus rediscovery and to analyse the development of its species and its habitat environment, providing corresponding protective tactics.

文章对该种的发现及意义进行阐述，对种群动态、栖息地环境现状进行分析，提出相应的保护策略。

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