达乌尔鼠兔是内蒙古草原斑块分布的一种害鼠。它们在斑块间的扩散对其种群调节和进化都有重要意义。文章对两个家族的达乌尔鼠兔进行了无线电遥测研究。它们的巢区面积从 31 38m2到 1 70 62m2 ,核心区面积从 1 2 92 m2到 780 8m2。雄性—雌性巢区重叠面积比雌性—雌性巢区重叠面积大。该鼠的扩散和探索距离可达 2 0 0 m。从 9月开始鼠兔的活动就很活跃 ,尤其是探索活动和扩散。多数扩散个体在移居点很快消失。 Daur albino rabbit is a pest distribution in the plains of Inner Mongolia. Their spread between plaques is important for their population regulation and evolution. The article conducted a radio telemetry study of two families of Daurian rabbits. Their nest area ranged from 31 38 m2 to 1 70 62 m2 with core areas ranging from 1 2 92 m2 to 780 8 m2. Male-female nest overlap area is larger than female-female nest overlap area. The rat’s diffusion and exploration distance up to 200m. Since September, the activities of the rabbit have been very active, especially in exploring activities and proliferation. The majority of diffused individuals quickly disappear at the settlements.