辽宁省家栖鼠种类组成与数量动态的研究

本文以1985～1991年城乡家栖鼠鼠情监测资料为主要依据,揭示了辽宁省城乡家栖鼠种类组成与数量的月变动及七年来年变动趋势。城乡1年内均有两个数量商峰,城市数量高峰为4～5月与9～10月,农村数量高峰为3～4月与10～11月。城市家鼠数量明显呈下降趋势,鼠密度被控制在1%以下;农村鼠密度也下降,但平均密度高于2%。

Study on Species Composition and Quantity Fluctuation of Domestic Rodents in Liaoning Province

On the basis of the data of domestic rodent infestation surveillance in the urban and rural areas from 1985 to 1991. the species composition of domestic rodents and the fluctuation of monthly and annual quantity in the urban and rural areas of Liaoning province were understood. It was known that there were two peaks of rodent density annually in the urban and rural areas. In recent years, the variety trend of domestic rodent density in tbe urban areas has obviously declined, the rodent density has been controlled below 1 percent(capture ratio).The rodent density in the rural areas has also decreased, but it is still above 1 percent.