The main biological characteristics of JBM and JBW were observed and compared through constructing life table, and mating selection of JBM and JBW were investigated by mating experiments; 通过组建生命表的方法,对JBM和JBW主要生物学特性进行了观察比较,同时设置交配试验,检验JBM和JBW是否存在交配选择性;