春季香蕉假茎象甲自然种群生命表的研究  

Life table of natural population of banana pseudostem weevil,Odoiporus longicollis Oliver,in Spring.

作　　者：陆永跃[1] 梁广文[1] 曾玲[1] 

机构地区：[1]华南农业大学,农业部昆虫生态,毒理重点开放实验室,广州510642

出　　处：《应用生态学报》2002年第12期1642-1644,共3页Chinese Journal of Applied Ecology

基　　金：国际合作项目和广东省重点科技攻关资助项目

摘　　要：通过调查研究 ,组建了以作用因子为组分的春季香蕉假茎象甲 (OdoiporuslongicollisOliver)自然种群生命表 ,在此基础上运用排除作用控制指数法分析了各种因子对假茎象甲自然种群的作用 .结果表明 ,春季假茎象甲自然种群趋势指数成长蕉株上平均为 4 .3481,留头蕉茎上平均为 3.6 6 2 8.捕食及其它因子对该虫种群控制作用最大 ,排除作用控制指数成长蕉株为 1.92 5 6 ,留头蕉茎上为 2 .35 77;自然死亡作用次之 ,成长蕉株为 1.36 0 7,留头蕉茎上为 1.35 5 4 ;寄生或疾病因子作用最小 ,成长蕉株为 1.1988,留头蕉茎上为 1.16 6 8.捕食及其他是该虫种群增长的重要控制因子 .The active factor life tables of natural population of banana pseudostem weevil were built,and the controlling effect of active factors was evaluated by using exclusion index of population control (EIPC). The results showed that the population trend indices in growing and harvested banana trunks were 4.3481 and 3.6628,and the EIPC of predation and others were 1.9256 and 2.3577,respectively. The EIPC of natural death were 1.3607 and 1.3554,and that of parasitism and disease in growing and harvested banana trunks were 1.1988 and 1.1668, respectively. The factor of predation and others was important.

关 键 词：春季 香蕉假茎象甲 自然种群 生命表 控制指数 

分 类 号：S433.5[农业科学—农业昆虫与害虫防治]