常规灭鼠下城市小型兽类生态的初步研究

Study on Ecology of Small Mammals in Cities Under Routine Rat-killing

为了了解常规灭鼠下城市小型兽类的种类组成和数量季节消长 ,通过分析浙江省杭州、宁波、绍兴、金华、湖州和萧山等 6个城市 1997- 1999年灭鼠情况和 3年的监测数据 ,结果表明 ,其种类组成啮齿目的褐家鼠、黄胸鼠、小家鼠、黑线姬鼠和食虫目的臭 ;其中褐家鼠占 42 .9%、小家鼠 32 .1%、黄胸鼠 10 .6 %、黑线姬鼠 6 %、臭 8.3 % ;这些动物的密度季节变化呈现单峰型或双峰型。每年 3 - 4月和 9- 10月开展两次灭鼠 ,能有效地控制小型兽类的密度 。

The species composition and seasonal dynamics of small mammals in cities under routine rat killing was studied by analyzing some cases and three years' monitoring data on small mammals from Hangzhou,Ningbo,Shaoxing,Jinhua,Huzhou and Xiaoshan from 1997 to 1999.The results showed that the small mammals included Rattus norvegicus(42.9%),Rattus flavipectus(10.6%),Mus musculus(32.1%),Apodemus agrarius(6%)of Rodentia and Suncus murinus(8.3%)of Insectivora in these cities and that the seasonal dynamics of small mammals varied with one peak or two peaks.The population density of small mammals can be controlled effectively by two times of rat killing one year from March to April and September to October,but attention should be paid to the changing of the types of rodent poison baits and applying mode.