当前位置：
X-MOL 学术
›
Forest Ecol. Manag.
›
论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Invasion of Red Turpentine Beetles led to the increase of native trunk-boring beetles in Chinese pine stands
Forest Ecology and Management ( IF 3.7 ) Pub Date : 2024-02-20 , DOI: 10.1016/j.foreco.2024.121758 Yizhou Liu , Bingtao Gao , Liangliang Bian , Lili Ren , Youqing Luo
Forest Ecology and Management ( IF 3.7 ) Pub Date : 2024-02-20 , DOI: 10.1016/j.foreco.2024.121758 Yizhou Liu , Bingtao Gao , Liangliang Bian , Lili Ren , Youqing Luo
The Red Turpentine Beetle () is a forest pest that invaded China from North America. There is few research on the damage characteristics of in China, particularly given the changes in its biological and ecological characteristics compared to its original habitat. The impact of this exotic bark beetle native insects is also insufficiently studied. In our study, we felled 12 damaged trees, categorizing them into three stages of attack: green, yellow, and red. Native trunk-boring beetles and natural enemy insects colonizing the roots, trunks, and branches were counted and identified. Our observations revealed a significantly higher density of in the green-attack stage at the base of Chinese pine trunks compared to the other stages (=0.028). At the roots, densities of in the green-attack stage significantly differed from those in the red-attack stage (=0.048). We identified a total of 13 species of native trunk-boring beetles and 2 species of natural enemy insects colonizing the injured trees. Native beetle abundance, species richness, and Shannon diversity indices increased considerably from the green to yellow stages (with almost all significant differences in roots, trunks and branches). The attack stages were the most significant factor in determining community composition, followed by the relative moisture content of the phloem (including cambium), trunk/branch diameter, relative height above ground, and the section of the tree (trunk/branch). Our research revealed the colonization times and locations of these species as well as the temporal-spatial niches of each species. Additionally, our findings demonstrated that was more active, and colonized the hosts earlier than all native trunk-boring beetles. Most native species exhibited neither spatial overlap nor competitive interaction with . Our survey did not identify any natural enemies of . The invasion by has resulted in increased mortality and degradation of Chinese pines, thereby creating favorable conditions for the proliferation of native trunk-boring beetles. We recommend the implementation of management strategies during the green-attack stage in newly invaded areas to effectively control , which could also mitigate its impact on local insect populations. Felling trees in the yellow and red stages does not contribute to the control of .
更新日期：2024-02-20
京公网安备 11010802027423号