褐家鼠在新疆阿拉山口口岸居民区形成种群

The Population of Rattus norvegicus Moved by Traffic to Residential Area in Alashankou ,Xinjiang

为了解新疆阿拉山口口岸居民区褐家鼠的迁入现状，作者等于１９９３年６、１２月对该区域的鼠类进行了调查。结果表明：阿拉山口居民区的褐家鼠是通过铁路建设被迁移到当地的，进而定居，并逐渐形成了当地居民区的优势鼠种。其捕获率达１１．９％，占家栖鼠类的６２．５％。此外，就该鼠种的繁殖、危害等进行了调查。

n order to find out presently moving state of Rattus norvegicus in residential area in Alashankou,Xin-jiang,a survey of the rattus was made in this area in l993.Results showed that the rats had been moved to the region by building railway,then settled and became dominant population gradually in this local area.In this in-vestigation,capture rate of this kind rat was 11.9%with 62.5 percentage out of all home rodents.In addi-tion,reproduction of the rat and its harmfuIness were also investigated.