关键词: 残存鼠, 种群, 空间分布格局, 平均拥挤度, 聚集性指数

Abstract: By using mean crowding(M^*), cluster index(M^*/M) from Lloyd and equation of regressive line between mean crowding and population density M^*=α+βM from Iwao, and with help of IBM computer, the spatial pattern of the population of urban remnant rodent during 18 successive months after attaining urban rodent calamity free level has been analysised. The result shows(1)Remnant Mus musculus, Rattus norvegicus amd R. flavipectus among dwelling building are in cluster distribution; (2)The three species of remnant indoor rodents have cluster spatial pattern of their population in the way of individual group, which is different from Apodemus agrarius in fields. the research on the spatial pattern of urban remnant rodent and mean density versus time order is significant to taking rodent control measure correctly, selecting proper position for poisonous bait putting, and deciding on the poison amount style, etc.