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在稻田节肢动物群落中,与水稻无直接营养关系的中性昆虫,如摇蚊、蚊、蝇、弹尾虫等,构成了捕食者猎物的重要组分。系统分析显示,中性昆虫在水稻生长前期为主要的猎物,其丰盛度的比例可高达90%以上(富阳早稻)。相应地,结网类蜘蛛由于可以大量取食中性昆虫猎物,其个体数量占捕食性天敌的50%以上,优势种有食虫沟瘤蛛(富阳和句容稻区)、锥腹肖蛸(郑州稻区)等。在一定条件下,结网类捕食者与中性昆虫相对丰盛度的季节动态呈正相关。从农田生态系统的整体性考虑,中性昆虫的生态学意义有必要进一步深入研究
Nematode insects, such as Chironomus, mosquitoes, flies and ticks, which have no direct nutritional relationship with rice, constitute an important component of predator prey in paddy field arthropod community. Systematic analysis showed that neutral insects were the main prey in the early rice growth stage, and their abundance ratio could reach over 90% (Fuyang early rice). Correspondingly, the net-like spiders can feed large numbers of neutral insects prey, accounting for more than 50% of predatory natural enemies. The dominant species are insectivorous insects (Fuyang and Jurong area) (Zhengzhou rice area) and so on. Under certain conditions, the seasonal dynamics of relative abundance of net insects and nematode insects were positively correlated. From the perspective of the integrity of farmland ecosystem, it is necessary to further study the ecological significance of neutral insects