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通过对秦岭林区海拔１６００～２２００ｍ的中山地带华山松小蠹虫种类和生态位的研究，结果表明：在秦岭林区入侵危害寄主华山松的小蠹虫有１９种，其中能构成竞争和共存的小蠹虫主要有１１种。虽然，这１１种小蠹虫具有各自不同的生态位宽度，且存在不同程度的生态位重叠，但各小蠹虫可依据其对寄主树木营养和空间需求的不同、种群密度的相互制约，以及入侵寄主树木时序的差异达到竞争的平衡和共存。秦岭华山松小蠹生态系统的建立，首先是由华山松大小蠹入侵健康华山松，并通过携带蓝变真菌入侵寄主树木，迅速克服寄主树木抗性系统，使寄主树木树势衰弱；其次松六齿小蠹、暗额星坑小蠹和松十二齿小蠹，作为秦岭华山松的主要次期性小蠹，迅速入侵衰弱的寄主华山松；最后其它次期性小蠹虫入侵寄主树木，利用寄主华山松剩余营养和空间。从而实现秦岭华山松立木小蠹生态系统的动态稳定。
The results showed that there were 19 species of Bark beetle invaded the Pinus armandii, a species of Pinus armandii, in Qinling forest area, which could compete and coexist Silverfish main 11 species. Although these 11 species of bark beetles have different niche breadths and niche overlaps to varying degrees, each beetle may be based on its different requirements on host tree nutrition and space requirements, population density constraints, and host invasion Differences in tree timing achieve a balance of competition and coexistence. The establishment of Pinus armandii Cyclobalanopsis carinosae ecosystem in Qinling Mountains firstly involves the invasion of Pinus armandi by Pinus armandii and invades the host trees with blue-blown fungi and quickly overcomes the host tree resistance system and weakens the host tree shrubs. Secondly, Dendroctonus cheloneriana, Dendroctonus rubra and Dendrolimus punctatus as the major secondary beetles of Pinus armandii in the Qinling Mountains quickly invaded the weakened host Huashan pine. Finally, other second-term bee-bark beetles invaded the host trees, using the host Huashan Loose excess nutrition and space. So as to achieve the dynamic stability of Pinus armandii wood beetle ecosystem in Qinling Mountains.