夏玉米田昆虫群落优势功能集团的组成与演替

Dynamics and composition of dominant guilds of insect community in summer maize

通过对新乡夏玉米田昆虫群落进行系统调查,总计调查到47种昆虫,分属于10个目的 30个科.在此基础上,把夏玉米昆虫群落划分为4个营养层、7个功能集团、17个类群.其中植食性昆虫占42.6%,捕食性天敌占31.9%,寄生性天敌占14.9%,其余为中性昆虫.优势种和关键种随玉米生育期的不同而发生变化.最后,分析和讨论了关键种、优势类群和功能集团在害虫综合治理中的作用.

The insect community in summer maize in the suburbs of Xingxiang was investigated and analysised.The results showed that there were 47 species which belong to 30 families of 10 orders.All of the insects were divided to 4 nutrient classes,7 guilds,and 22 groups,which include herbivores,predators,parasite and others.In which,42.6% is phytophagous insect,31.9% is carnivore,14.9% is parasite and 10.6% is other neutral insects.These species change with the growth of corns.The function of the key species,dominant groups and guilds in the integrated pest management about maize was analyzed and discussed.