关键词: 鼠情监测, 种群密度, 种群波动, 监测点, 灭鼠运动

Abstract: By a three years monitor of rodents in Shanghai from 1986 to 1988, it was found that Mus musculus was the dominant species whose proportions indoor of urban and rural districts were 67.84% and 46.08%, Rattus flavipectus was the second. The component proportions of R. norvegrcus and Apodemus agrarius in rural monitoring points were higher than those in urban district, this character was probably in relation to the rural ecological habitats. The curve of rodent densities of each month during three years shows that the tendencies of urban and rural commesal rodent population fluctuation were approximately the same. There were two peaks of population densities in spring (March-May) and fall (September-October), and sometimes 2-3 small waves diveded from a large one appear. The influence of eliminating rodent campaign on the variation of rodent density was also observed, for example, the quality and the degree of thoroughness of eliminating rodent in urban district were superior to rural district in 1988, it shows that the commesal rodent densities of urban district in lower than that the rural. The difference was vesy striking (P<0.01).