DISSERTATION RESEARCH: The Effects Of Total and Proportional Densities On Patterns Of Associational Resistance: Reconsidering A Classic Pattern In Nature As A Dynamic Phenomenon

论文研究：总密度和比例密度对关联抵抗模式的影响：重新考虑自然界中的经典模式作为动态现象

• 批准号: 1110460
• 负责人: Nora Underwood
• 金额: $ 1.31万
• 依托单位: Florida State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2011
• 资助国家: 美国
• 起止时间: 2011-05-01 至 2013-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1110460&HistoricalAwards=false
• 关键词: DISSERTATION; RESEARCH; Effects; Total; Proportional

Neighboring plants can sometimes influence the amount of insect damage experienced by plants of interest (crops or weeds). This phenomenon ("associational effects") is the basis for some pest management strategies in agriculture and forestry and might occur through many mechanisms. For instance, neighboring plants may emit smells that repel insects, or attract predators that feed on insects. Although the possibilities are numerous, we understand little about how these specific mechanisms operate and the long-term consequences for plant communities. In a previous study, associational effects were observed between two common weedy plants (Carolina horsenettle and Tall goldenrod). This study will examine how goldenrod neighbors influence insect damage to horsenettle, focusing on four possible mechanisms. Results from this study will contribute to a larger study examining how insect pests influence the persistence of plants (such as the weedy horsenettle) in a community of other plants. Understanding the mechanisms by which neighboring plants influence insect damage may lead to more effective management of weeds (where we may want to increase insect damage) and crops (where we may want to reduce insect damage). Results will be presented to agricultural researchers and farmers through seminars, newsletters, and workshops at the local agricultural experiment station and surrounding universities.

邻近植物有时会影响感兴趣的植物（作物或杂草）所经历的昆虫损害的量。 这种现象（“关联效应”）是农业和林业中某些虫害管理战略的基础，可能通过许多机制发生。 例如，邻近的植物可能会散发出排斥昆虫的气味，或者吸引以昆虫为食的捕食者。 尽管可能性很多，但我们对这些具体机制如何运作以及对植物群落的长期影响知之甚少。 在先前的研究中，观察到两种常见的杂草植物（卡罗莱纳马荨麻和高一枝黄花）之间的关联效应。 本研究将探讨黄花邻居如何影响昆虫对马荨麻的损害，重点是四种可能的机制。这项研究的结果将有助于一项更大的研究，研究昆虫害虫如何影响植物（如杂草马奈）在其他植物群落中的持久性。 了解邻近植物影响虫害的机制可能会导致更有效地管理杂草（我们可能希望增加虫害）和作物（我们可能希望减少虫害）。研究结果将通过在当地农业试验站和周边大学举办的研讨会、通讯和讲习班向农业研究人员和农民介绍。