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

该奖项将支持加州大学圣巴巴拉分校的威廉·默多克博士和三位英国生态学家的合作研究。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，西尔伍德公园帝国学院野外站人口生物学中心的查尔斯·戈弗雷博士。在与这些科学家的合作中，默多克博士将开发和分析一些相关模型，描述柑橘上的害虫红鳞虫及其控制寄生虫葡萄球菌之间的相互作用。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（拟寄生物和捕食者）控制宿主或猎物种群的机制。生物防治为广泛的拟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标度/葡萄球菌相互作用的实验现场数据，并与英国同事合作，还开发了几个阶段结构模型。拟议的合作将完成对这些模型现有版本的分析，对这些版本进行参数化和广泛的计算机调查，并根据Murdoch博士最近获得的现场结果开发新版本。该项目将受益于美国和英国合作者的互补专业知识。教授。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最重要的专家。Godfray博士是研究性别分配/宿主喂养模型的专家。

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.