自70年代初由内蒙迁入吉林省西部风沙草原地带的长爪沙鼠种群,现已成为该地区啮齿动物群落的重要组成部分。二十几年来每年平均以18.25km的速度向东北方向扩散。现已分布于吉林省西部达乌尔黄鼠鼠疫自然疫源地的三分之一左右。尽管通过对其分布扩散及有关生态因素的研究认为分布扩散已近停止,种群规模也不会有更大的 Mongolian gerbil Mongolian gerbil migrated from Inner Mongolia to the windy and grassy meadow in the western Jilin Province since the early 1970s has become an important part of rodent communities in the area. Over the past few decades, the average annual rate of 18.25km spread to the northeast. Now distributed in western Jilin Province Daurian yellow rat plague natural foci about one-third. Although the spread of distribution has almost stopped by studying its distribution and related ecological factors, the population size will not be greater