US-UK Cooperative Research: An Experimental and TheoreticalStudy of the Ecology of the Control of Red Scale by Aphytis

该奖项将支持威廉·默多克博士、加州大学圣巴巴拉分校和三位英国生态学家之间的合作研究。格拉斯哥斯特拉斯克莱德大学的罗杰·内斯比特和威廉·格尼，以及锡尔伍德公园帝国学院野战站人口生物学中心的查尔斯·戈德弗雷博士。在与这些科学家的合作下，默多克将开发和分析一些相关的模型，描述柑橘害虫红壳虫与其控制寄生蜂APhytis之间的相互作用。生物控制的例子为种群生态学家提供了无与伦比的机会来研究敌人(寄生蜂和捕食者)控制宿主或猎物种群的机制。生物防治为广泛的寄生寄主理论提供了动力。然而，令人惊讶的是，很少有种群生态学家对真正的生物控制系统进行过实地研究。默多克博士收集了大量关于红鳞病/APhytis相互作用的实验场数据，并与英国同事合作，开发了几个阶段性结构模型。拟议中的合作将完成对这些模型的现有版本的分析，对这些版本进行参数化并进行广泛的计算机调查，并根据默多克最近获得的实地结果开发新的版本。该项目将受益于美国和英国合作者的互补专业知识。教授们。Nisbet和Gurney是该项目中使用的阶段结构模型的开发和分析方面的顶尖专家。戈德弗雷博士是性别分配/寄主喂养模式战略版本方面的专家。

This award will support collaborative research between Dr. William Murdoch, University of California at Santa Barbara, and three British ecologists: Profs. Roger Nesbit and William Gurney, University of Strathclyde, Glasgow, and Dr. Charles Godfray, Population Biology Center, Imperial College Field Station, Silwood Park. In cooperation with these scientists, Dr. Murdoch will develop and analyze a number of related models, describing the interaction between red scale, a pest insect on citrus, and its controlling parasitoid, Aphytis. Examples of biological control provide the population ecologist with unparalleled opportunities to study the mechanism by which enemies (parasitoids and predators) control host or prey populations. Biological control has provided the impetus for a broad range of parasitoid-host theory. Surprisingly, however, very few population ecologists have done field studies of real biological control systems. Dr. Murdoch has collected extensive sets of experimental field data on red scale/Aphytis interactions, and in collaboration with British colleagues, has also developed several stage-structured models. The proposed collaboration will complete the analysis of existing versions of these models, parameterize and carry out extensive computer investigations of these versions, and develop new versions in response to field results recently obtained by Dr. Murdoch. The project will benefit from the complementary expertise of the U.S. and British collaborators. Profs. Nisbet and Gurney are the foremost experts on the development and analysis of the stage-structured models being used in this project. Dr. Godfray is an expert on the strategic versions of the sex-allocation/host feeding model.