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植食性昆虫较捕食性和中性昆虫多。Phytophagous insects were more abundant than predatory and neutral insects.

此外，植物减少对那些食草类动物而言也缺少食物来源。In addition, the plant reduces speaking of these phytophagous animal also lacks food origin.

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植食性、捕食性、寄生性昆虫和蜘蛛的物种数分别为30、8、10和20。The species number of phytophagous , predatory, parasitic and spider groups was 30,8,10 and 20 respectively.

苹果园内植食性昆虫种群数量的上升和主要种类的变替，原因是多方面的。There are lots of factors causing infestation of phytophagous pests and changes of dominate species in the apple orchards.

物种之间的表观竞争被认为和资源竞争具有同等的重要性，尤其是对植食性昆虫来说更为重要。It is now known that apparent competition is as important as resource-mediated competition, especially for phytophagous insects.

该区的优势昆虫类群是鞘翅目、直翅目、半翅目和膜翅目的昆虫，且植食性昆虫占比例大。The dominant insects of this region are Coleoptera, Orthoptera, Hemiptera and Hymenoptera . Phytophagous insects account for a large proportion.

与杂食性鸡类、食虫鸟类及猛禽比较，勺鸡的消化系统具有典型植食性鸟类的特征。Compared with omnivorous pheasants, insectivorous birds and raptorial birds Koklass's digestive system is similar to the typical phytophagous birds.

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捕食性类群的多样性指数在稀植区最大，施肥区多样性指数最小，优势集中性指数与之相反。The dominant concentration indexes of Phytophagous group and Parasitic group were the most and Predatory group was the least in the low planted area.

无论从幼虫形态还是食性来看，植食性瓢虫都是瓢虫科最原始的类群，有可能最早从叶甲类昆虫进化而来。The larva and diet of phytophagous coccinellids indicate that that they are the most ancestral group of Coccinellidae evolving from ancestors like chrysomelids.

昆虫在幼虫和成虫期都具有学习能力，但幼虫期食料和取食经历不会对成虫行为产生直接影响。Phytophagous insects have the ability of learning in both larval and adult stages. However, larval diet and experience of feeding do not have direct influence on adult behavior.

研究表明，转基因741杨对目标昆虫和非目的植食性害虫存在负效应，而对天敌和中性节肢动物组成和发生无明显负作用。Transgenic insect-resistance hybrid poplar 741 had negative effect on target and non-target phytophagous pests, but had positive effect on natural enemies and neutral arthropod.

为了长期有效地控制害虫的危害，基于植食性昆虫寄主选择机制的行为调控策略已成为害虫治理研究的重要方向。The novel control strategy based on the behavioral manipulation of phytophagous insects has become a main research field in recent decades for sustainable management of crop pests.

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本文着重阑明了树木与植食性昆虫的互相策略，诱导抗性的生物化学基础以及诱导抗性在调节植食性昆虫种群中的重要性。In this paper have been discussed the mutual countermeasures between trees and phytophagous insects, bio-chemical basis of induced resistance in regulating phytophagous insects population.

树木挥发物质对植食性昆虫取食、产卵所产生的诱导抗性是树木与昆虫的长期协同进化过程中的必然结果。The induced resistance of volatile substance of trees to feeding and deposition of phytophagous insects is the inevitable outcome of coordinated evolution between trees and insects for a long time.