Insect population dynamics in changing environments

变化环境中的昆虫种群动态

• 批准号: 138202-2010
• 负责人: Roland, Jens
• 金额: $ 2.48万
• 依托单位: University of Alberta
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2011
• 资助国家: 加拿大
• 起止时间: 2011-01-01 至 2012-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=475796
• 关键词: Insect; population; dynamics; changing; environments

My research program examines the processes that drive insect populations, in particular at a large spatial and temporal scale. Insect populations are particularly suitable for such studies because of the wide range of dynamics that different species show; my research program makes use of three insect systems with very different dynamics. Projects combine long-term monitoring of populations, and the experimental study of process that drive those dynamics. I examine the effect of fragmentation of boreal forests on the dynamics of outbreaking, cyclic pest populations of the forest defoliator, the forest tent caterpillar. These studies identify that the more severe outbreaks in fragmented forest result in part from the effect of fragmentation de-coupling the tent caterpillar from its natural enemies.

我的研究项目考察了驱动昆虫种群的过程，特别是在大的空间和时间尺度上。昆虫种群特别适合进行这类研究，因为不同物种表现出的动态范围很广；我的研究项目利用了三种动力学非常不同的昆虫系统。项目结合了对人口的长期监测，以及对驱动这些动态的过程的实验研究。我研究了北方森林破碎化对森林落叶虫、森林帐篷毛虫爆发、循环虫害种群动态的影响。这些研究表明，破碎森林中更严重的暴发部分是由于碎片化使帐篷毛虫与其天敌分离的影响。