关键词: 残存鼠, 种群生态位, 生态位宽度, 生态位重叠值

Abstract: The utilization and allocation ways of space and time resources of remnant rodent in the various building style dwelling house as well as the different inside environment of dwelling house, factorty, enterprise and hotel are analysised by use of the niche breadth and the niche overlapping value. The investigating result shows that the niche breadth of the remnant rodent in dwelling building is large and the overlapping value is also high, but the niche breadth and overlapping value of the various environment points are both low. The time niches of the remnant rodent investigated during 18 months are all large, however, the time niches of the rodent in various environment points of the dwelling building and the factory, enterprise are all low. Three species rodents (Mus musculus, Rattus flavipectus, R. norvegicus)coexist in urban ecology system because of the resource utilization and allocation difference of the remnant rodent in different niche dimension.