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

变暖环境中营养相互作用的改变：对爆发性食草动物种群动态的见解

• 批准号: RGPIN-2015-04376
• 负责人: Carroll, Allan
• 金额: $ 2.33万
• 依托单位: University of British Columbia
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2015
• 资助国家: 加拿大
• 起止时间: 2015-01-01 至 2016-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=589758
• 关键词: Altered; trophic; interactions; warming; environment

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.

虽然气候变化对食草昆虫的直接和间接影响预计是可变和复杂的，但迄今为止最常见的记录结果是其分布的变化。阐明改变营养相互作用与分布变化和栖息地入侵的外来昆虫草食动物可以提供重要的见解基本生态过程。对于容易发生剧烈种群波动和大范围爆发的物种，比较新栖息地和原生栖息地的营养相互作用，可以确定影响其种群动态的关键因素，并量化塑造其进化的选择压力。