【摘要】 目的了解板齿鼠种群数量季节变化规律和种群繁殖特征的变动规律。方法夹日法进行密度调查,所捕获的板齿鼠调查其种群构成及繁殖情况。结果板齿鼠年均密度1.51%,年均种群构成41.37%,平均怀孕率为47.65%,平均胎仔数为5.43只,平均繁殖指数为1.40。结论板齿鼠是该地农田鼠害监测和防制的主要对象。更多还原

【Abstract】 Objective To study the regularity of population dynamics and breeding characteristics.Method The population density of Bandicota indica was detected by clip method,and investigated the population structure and breeding status.Results The results showed that the whole year average density of Bandicota indica was 1.51%,the annual average population structure was 41.37%,the mean pregnancy rate was 47.65%,average litter size was 47.65% and the reproductive index was 1.40.Conclusions Bandicota indica was the target rodent for surveillance and control in the field.更多还原