大方县农区鼠类种群组成及种群数量预测

为了探讨农区鼠害防治对策,对贵州省大方县1996-2008年住宅、稻田、旱地3种生境类型的鼠情进行了调查.结果表明:大方县家栖鼠类和农田鼠类主要有7种,黑线姬鼠、褐家鼠、黄胸鼠、小家鼠、高山姬鼠、四川短尾鼩、锡金小家鼠.其中,褐家鼠为家栖鼠优势种,占总鼠数的73.33%;高山姬鼠、黑线姬鼠为稻田、旱地耕作区害鼠优势种,分别占总鼠数的62.32%、19.56%;锡金小家鼠为稀有种;褐家鼠、高山姬鼠、黑线姬鼠是大方县监测和防治的主要对象,每年4-5月为防治的关键时期.家栖鼠类和农田鼠类混合鼠种每年均在6月出现1个种群数量高峰,建立了住宅区、农田区混合鼠种数量峰种群数量预测预报方程分别为:y1＝1.3535x1+0.7009,y2＝1.3043x2+1.0540,可以提前2个月预报混合鼠种高峰期种群数量变动趋势.

The Population Composition and Prediction of Rodents in Dafang County

To develop the strategies to control the rats,the investigation was undertaken in 3 types of habitats as residential area,paddy field and upland in Dafang County from 1996 to 2008.The result showed that there were seven species of rodents in both residential area and farmland in Dafang County.Among them,Rattus norvegicus is dominant,which was 73.33%.Apodemus chevrieri and A.agrarius are dominant in paddy and upland,which were 62.32% and 19.56%,respectively.R.norvegicus,A.chevieri and A.agrarius are the main...