云杉八齿小蠹生态学研究进展

云杉八齿小蠹是欧洲最具危害性的小蠹虫之一,嗜食衰弱木,利用雄性产生的信息素进行大面积聚集。聚集信息素不仅具有引诱聚集的作用,其种类和数量还具有调节其聚集密度的效应。在定殖过程中,云杉八齿小蠹既能利用寄主挥发物定位寄主,也能利用非寄主挥发物作为远距离的嗅觉示踪来区别寄主和非寄主。在森林生态系统内捕食性天敌和寄生性天敌很大程度上影响着云杉八齿小蠹的种群密度和行为生态。本文从云杉八齿小蠹的分布与扩散、天敌的种类及控制作用、化学信息物质对小蠹虫及其天敌的行为调控作用以及信息素防治现状等方面进行了综述,并展望了其研究前景。

Research progress on ecology of Ips typographus

Ips typographus is one of the most damaging bark beetles in Europe,which can attack weak spruces and aggregate in larger area via the pheromone produced by males.The aggregation pheromones can not only lead to aggregation,but also modify the density of aggregation.During the period of host orientation,both host volatiles and nonhost volatiles could be used to distinguish host or nonhost.In forest ecosystem,predatories and parasitoids greatly affect the population density and behavioral ecology of I.typographus.This paper reviewed the research progress on the distribution and pervasion of I.typographus,kinds of natural enemies and their control functions,behavioral control of beetle and its natural enemies by semiochemicals,and present status of pheromone protection.