A Model for Species Interactions: Costs and Benefits of Linked Herbivory/pollination in Datura Wrightii and Manduca Sexta

物种相互作用模型：曼陀罗和天蛾中相关食草/授粉的成本和效益

• 批准号: 0316205
• 负责人: Travis Huxman
• 金额: --
• 依托单位: University of Arizona
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2003
• 资助国家: 美国
• 起止时间: 2003-09-01 至 2007-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0316205&HistoricalAwards=false
• 关键词: Model; Species; Interactions; Costs; Benefits

A model for species interactions: Costs and benefits of Linked herbivory/pollination in Datura wrightii and Manduca sextaBronstein, Judith L.University of ArizonaMutualisms (reciprocally beneficial interactions between species) are critical components of biological systems, yet have received little experimental study. This project will take a physiologically-based field and laboratory approach to studying the costs, benefits, and reciprocal net effects of interactions between the common hawkmoth (Manduca sexta) and the plant upon which it primarily depends in Arizona (Datura wrightii). Like certain other generalist Lepidoptera, M. sexta acts as both a primary pollinator and a damaging herbivore of the same plant species. This study will identify and quantify costs and benefits of the interaction to both partners, via observational and experimental studies. These data will allow exploration of the link between the benefit of pollination and the cost of herbivory experienced by the plant, and the cross-link between the cost of herbivory to the plant and the benefit of consumption to the insect. In establishing the energetic and fitness relationships between Datura and Manduca, this study will both suggest and facilitate future quantitative investigations into mutualisms, the most poorly understood species interaction. Furthermore, these studies will shed light on the general problem of how pollination and herbivory interact to regulate plant fitness, as well as on the physiological ecology of desert plants and animals. This project represents a collaboration among three researchers with distinct backgrounds and areas of expertise, and will foster novel interdisciplinary approaches cutting across plant and animal biology. Manduca sexta is a major agricultural pest, so the results of this project should have significant applied value as well. Undergraduates employed in this project will be recruited from a program at the University of Arizona that actively encourages research opportunities for under-represented groups.

物种相互作用的模型：Datura wright tii和Manduca SixtaBronstein的连锁草食/授粉的成本和收益，亚利桑那大学朱迪思·L·布朗斯坦(Judith L.University of Arizona)互惠互利是生物系统的关键组成部分，但很少有实验研究。这个项目将采用基于生理的田间和实验室方法来研究普通天蛾(Manduca Sexta)和它主要依赖的亚利桑那州植物(Datura Wright Tii)之间相互作用的成本、收益和相互净影响。与其他一些多面性鳞翅目昆虫一样，六纹夜蛾既是同一植物物种的主要传粉者，也是一种破坏性的草食动物。这项研究将通过观察和实验研究，确定并量化相互作用对双方的成本和收益。这些数据将允许探索授粉的好处和植物经历的草食成本之间的联系，以及草食对植物的成本和消费对昆虫的好处之间的交叉联系。在建立Datura和Manduca之间的能量和适合度关系时，这项研究将建议并促进未来对互惠关系的定量研究，互惠关系是最不了解的物种相互作用。此外，这些研究将阐明传粉和食草如何相互作用来调节植物适合性的一般问题，以及荒漠动植物的生理生态。这个项目代表了三位具有不同背景和专业领域的研究人员之间的合作，并将促进跨越植物和动物生物学的新的跨学科方法。天牛是一种重要的农业害虫，因此本项目的研究成果也具有重要的应用价值。受雇于这个项目的本科生将从亚利桑那大学的一个项目中招募，该项目积极鼓励代表不足的群体的研究机会。