Altered trophic interactions in a warming environment: insights into the population dynamics of eruptive herbivores

尽管气候变化对食草性昆虫的直接和间接影响预计是多种多样和复杂的，但迄今为止记录在案的最常见的变暖结果是它们的分布发生了变化。阐明与外来昆虫食草动物的分布变化和栖息地入侵相关的改变的营养相互作用可以为基本的生态过程提供重要的见解。对于容易发生种群剧烈波动和大范围暴发的物种，比较新栖息地和原生生境中的营养相互作用，可以确定影响其种群动态的关键因素，并量化影响其进化的选择压力。

Although the direct and indirect influences of climate change on herbivorous insects are expected to be variable and complex, the most commonly documented result of warming to date has been shifts in their distribution. Elucidation of altered trophic interactions associated with distributional changes and habitat invasion by an alien insect herbivore can provide important insights into fundamental ecological processes. For species prone to dramatic population fluctuations and widespread outbreaks, comparisons of trophic interactions in novel and native habitats make it possible to identify key factors influencing their population dynamics, and quantify the selective pressures shaping their evolution.