江宁农田褐家鼠13年的种群数量变化动态  

Population Dynamics of Rattus norvegicus in the Fieldsof Jiangning in 13 Years

作　　者：赵迳连 阮治安 沈兆昌[1,2] 

机构地区：[1]江宁县农业服务总站 [2]江苏省植物保护站

出　　处：《中国媒介生物学及控制杂志》1998年第5期324-325,共2页Chinese Journal of Vector Biology and Control

摘　　要：目的：观察江宁农田褐家鼠１３年的种群数量变化动态。方法：鼠夹捕鼠，计算捕获率；解剖观察怀孕率及胎指数。结果：１９８５～１９９７年褐家鼠种群数量变化呈马鞍形，其中１９８５～１９８７年捕获率在１％以上；１９８８～１９９３年为低谷期，最低为０．１７％；１９９４年起逐年回升，１９９６年达３．９％，为历史最高年份。The population dynamics of Rattus norvegicus from 1985 to 1997 was saddleshaped.From 1985 to 1987,the capture rate was higher than 1% per year,from 1988 to 1993,the rate was very low,the lowest rate was 0.17%,and since 1994,the rate was increasing,and it was up to 3.9% in 1996.The increasing population of R.norvegicus will do much more serious damage to both fields and houses in the countryside.

关 键 词：褐家鼠 种群数量 动态 

分 类 号：S443.9[农业科学—农业昆虫与害虫防治]