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通过对松毛虫一个暴发周期中不同发生类型区内松林林冠层昆虫群落的多样性及其动态分析结果表明，群落平均多样性特别是潜伏期多样性越大，群落越稳定，食叶类群多样性对整个群落的多样性和稳定性起重要的作用。捕食类群对刺吸类群控制作用较大，而寄生类群对食叶类群的控制作用较大。中性昆虫在群落中也有一定的作用。松毛虫不同发生阶段中，上升阶段多样性最大，如此时多样性足够大，可有效地抑制松毛虫的暴发，否则松毛虫将在竞争中占优势地位，数量猛增，导致大发生。通过研究认为，群落中并联形式的多样性可增加系统的冗余和负反馈作用，导致系统的稳定性；而串联形式的多样性不能导致系统的稳定性。
Based on the diversity and dynamic analysis of the canopy insect community in different occurrence types of pine caterpillars in a single outbreak period, the results showed that the average community diversity, especially the diversity of incubation period, the more stable the community, The diversity and stability of the entire community play an important role. Predatory groups have a greater control over the sucking populations, while parasitic groups have greater control over the leaf-eating groups. Neutral insects also have a role in the community. Dendrolimus in different stages of development, the largest diversity in the ascending stage, when diversity is large enough, which can effectively inhibit the outbreak of pine caterpillars, or pine caterpillars will prevail in the competition, the number soared, resulting in a large occurrence. According to the research, the diversity of parallel forms in the community can increase the redundancy and negative feedback of the system, leading to the stability of the system. However, the diversity of the serial forms can not lead to the stability of the system.