Selection on Continuous Reaction Norms: Relating Environmental Change to Selection and Evolution

连续反应范数的选择：将环境变化与选择和进化联系起来

• 批准号: 0212798
• 负责人: Joel Kingsolver
• 金额: --
• 依托单位: University of North Carolina at Chapel Hill
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2002
• 资助国家: 美国
• 起止时间: 2002-07-01 至 2008-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0212798&HistoricalAwards=false
• 关键词: Selection; Continuous; Reaction; Norms; Relating

Understanding quantitatively how environmental changes cause selection and evolution is a fundamental challenge for evolutionary biology. We are now in a position to address a variety of fundamental questions about how changes in weather and climate determine selection and evolution. Is selection in the field primarily due to infrequent exposures to extreme (hot or cold) temperatures, or is the frequency of average temperature conditions more important? How does geographic variation in the thermal environment generate differences in selection and evolutionary divergence in traits of organisms that depend on temperature? Can we predict quantitatively how alterations in the thermal environment, such as those due to climate warming, will alter selection and evolutionary responses? To address these questions, the proposed studies will use laboratory and field experiments to test predictions of a quantitative, mathematical model describing selection and evolution. Our studies use temperature effects on growth rate in Pieris rapae (Imported Cabbageworm) caterpillars as a model system; this species has experienced a world-wide expansion of its geographic range during the past 200 years, and is now an important agricultural pest in some regions.

定量地理解环境变化如何导致选择和进化是进化生物学的一个基本挑战。 我们现在能够解决有关天气和气候变化如何决定选择和进化的各种基本问题。 现场选择主要是因为不经常暴露于极端（热或冷）温度，还是平均温度条件的频率更重要？ 热环境的地理变化如何产生依赖于温度的生物体特征的选择差异和进化差异？我们能否定量预测热环境的变化（例如气候变暖引起的变化）将如何改变选择和进化反应？ 为了解决这些问题，拟议的研究将使用实验室和现场实验来测试描述选择和进化的定量数学模型的预测。 我们的研究使用温度对菜青虫（进口菜青虫）毛虫生长速率的影响作为模型系统； 在过去的200年里，该物种的地理范围在世界范围内不断扩大，现在是一些地区的重要农业害虫。