Dynamics of Plant Modules, Herbivores, and Natural Enemies

植物模块、食草动物和天敌的动态

• 批准号: 8705302
• 负责人: Peter Price
• 金额: $ 25.43万
• 依托单位: Northern Arizona University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1987
• 资助国家: 美国
• 起止时间: 1987-07-15 至 1990-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8705302&HistoricalAwards=false
• 关键词: Dynamics; Plant; Modules; Herbivores; Natural

This research will extend concepts and theory on three trophic level interactions. The central theme is that the dynamics of modular plant parts, the shoots, defines plant architecture, and in a predictable way, the dynamics of herbivores and their enemies in space and time. Plant architecture of the arroyo willow, Salix lasiolepis, defines resources for the herbivore, shoot-galling sawfly Euura lasiolepis, because the metamere, or internode, is the resource utilized, and those on the longest shoots have the highest probability of attack by sawflies. In turn, metamere quality defines gall characters that influence access to the herbivore by the third trophic level. Thus, studying the population dynamics of plant modules is basic to understanding the dynamics of this herbivore, and its interaction with enemies. This research addresses four major questions: 1. how willow clones grow and display resources through space and time; 2. how sawflies respond to these displays; 3. how sawflies influence displays of resources; and 4. How resources influence the herbivore-enemy interaction. These questions are approached by describing conditions in wild clones and using field experiments with potted clones to understand better the mechanistic dynamics of the system. Plant/animal interactions is a major area of ecological research which provides the information base for biological control strategies in agriculture.

本研究将拓展三大营养学的概念和理论 水平互动。 中心主题是， 模块化的植物部分，枝条，定义了植物的结构， 以一种可预测的方式，食草动物的动态及其 时空中的敌人 阿罗约的植物结构 杨柳，沙柳，定义了食草动物的资源， 射伤叶蜂Euura lasiolepis，因为后节，或 节间，是利用的资源，而那些在最长的 嫩枝被叶蜂攻击的可能性最高。 在 反过来，体节质量定义了影响 第三营养级的食草动物。 因此，在本发明中， 研究植物模块的种群动态是 了解这种食草动物的动态， 与敌人。 本研究解决了四个主要问题：1。如何杨柳 克隆通过空间和时间生长和显示资源; 2.如何 叶蜂响应这些显示器; 3.叶蜂如何影响 资源展示; 4.资源如何影响 食草动物与天敌的相互作用 这些问题是由 描述野生克隆的条件并使用田间实验 通过盆栽克隆来更好地理解 该系统 植物/动物的相互作用是一个主要领域， 生态学研究，为 农业生物防治策略。