U.S.- United Kingdom Cooperative Science: Competition, Herbivory and Size Variability in Plant Populations

美国-英国合作科学：植物种群的竞争、食草性和大小变异

• 批准号: 8822591
• 负责人: Jacob Weiner
• 金额: $ 1.46万
• 依托单位: Swarthmore College
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1989
• 资助国家: 美国
• 起止时间: 1989-08-01 至 1991-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8822591&HistoricalAwards=false
• 关键词: U.S.; United; Kingdom; Cooperative; Science

This award will support collaborative research between Dr. Jacob Weiner, Swarthmore College and Dr. Michael J. Crawey, Imperial College at Silwood Park, England. The objective of the project is to examine the interactions between competition and herbivory in determining the size variability in plant populations. This will be accomplished in two ways. First, the investigators will execute a large multifactoral experiment which will look at the effects and interactions between plant density and slug herbivory on size distributions in greenhouse populations of white clover. This will enable them to test several hypotheses about the influence of herbivory on plant size distributions, and how the effects of herbivory are mediated by competition between plants. Second, the investigators will use new statistical methods to analyze large data sets which have been collected over several years at Silwood Park on the effect of rabbit herbivory on populations of winter wheat. This will submit the hypotheses to the more rigorous test of field conditions. This project will combine Dr. Crawley's expertise with herbivory and Dr. Weiner's expertise in the analysis of plant population structure. The performance of this study at Silwood Park is particularly important, due to the strong research faculty present. The results of this research will contribute to our understanding of the mechanisms that produce size variation in plant population.

该奖项将支持雅各布博士与 韦纳，斯沃斯莫尔学院和迈克尔J克劳维博士，帝国理工学院 Silwood Park，英格兰 该项目的目标是 研究竞争和食草动物之间的相互作用， 确定植物种群的大小变异性。 这将 可以通过两种方式实现。 首先，调查人员将执行 一个大型的多因素实验， 密度与蛞蝓取食对个体大小的交互作用 在白色三叶草温室种群中的分布。 这将 使他们能够测试几个假设的影响 草食动物对植物大小分布的影响，以及 草食动物是通过植物之间竞争来介导的。 二是 研究人员将使用新的统计方法来分析大型 Silwood几年来收集的数据集 公园的影响兔草食动物对种群的冬季 小麦 这将使这些假设接受更严格的检验 现场条件。 这个项目将结合联合收割机克劳莱博士的专业知识与草食动物 以及韦纳博士在植物种群分析方面的专业知识 结构 这项研究在Silwood Park的表现是 尤其重要的是，由于强大的研究队伍 礼物 这项研究的结果将有助于我们 了解产生尺寸变化的机制， 植物种群