Population and community ecology of the brown spruce longhorn beetle

随着全球贸易的增加，外来入侵森林昆虫已成为北美森林生态和经济的严重干扰因素。祖母绿灰螟（原产于远东）和褐云杉长角甲虫（原产于东欧）是最近在加拿大东部出现的两种杀树昆虫。这些昆虫在其原生范围内不是害虫，但由于缺乏监管控制和允许种群爆炸的新型生态相互作用，导致加拿大树木死亡。我的研究调查了杀死树木的昆虫、它们的宿主树木和天敌的生态和行为，目的是了解地方病种群为何以及如何转变为流行病。

With increasing global trade, invasive alien forest insects have become agents of severe ecological and economic disturbance in North American forests. The emerald ash borer (native to the Far East) and the brown spruce longhorn beetle (native to Eastern Europe) are two examples of tree-killing insects that have recently established in Eastern Canada. These insects are not pests in their native range but cause tree mortality in Canada as a result of novel ecological interactions that lack regulatory controls and permit population explosions. My research investigates the ecology and behaviour of tree-killing insects, their host trees and natural enemies with the goal of understanding why and how endemic populations transition into epidemics.