关键词: 特殊环境, 居民环境, 鼠类生态, 褐家鼠, 小家鼠

Abstract: The species composition, heterageneity and equitability of rodent population varied from districts and in their dwelling, but Rattus norvegicus (R.n.) and Mus musculus (M.m.) were always the dominant species in urban. The difference between the densities of rodents in the two environments varied from district to district, In Jilin Province and Inner Mongolia, the densities of rodents in some special environment (SE), such as grain shop, grain, depot and food shop, etc, were significantly lower than than those in residential quarter environment(RE), (P<0.001). However, it was quite the contrary in Hubei Provinve(P<0.001). In Jilin Province, the densities of the rodents in the two environments were basically of synchro-undulation but in Hubei Province it was quite different The density of one species and its fluctuation curves were different between districts and environments. In Jilin Province the density of R.n. in SE was similar to that in RE; with synchro-undulation basically, lu Hubei Province, the density of R.n. in SE was significantly higher, than that in RE and their fluctuation surves were quite differnt. In Jilin Province the density of M.m. in SE was significantly lower than that in RE with synchro-undulation basically, but it was contrary in Hubai province. The variabilities of densities of R.n. or M.m. ia SE were greater than thase in RE in the Province. The sex ratio of R.n. or M.m. varied with districts. Totally, the higher, the female ratio, the higher the density of rodents it was. The density or M.m. show positive correlation with its female ratio(r=0.563, P<0.05). There was no obvious relation to R.n. The classified investigation in SE in Baotou City and other investigations were also reported. The building area of RE was thirteen limes as large as that in SE. The density of rodent in store room was eleven times as big as that in living room.