Parasitoid-Host Metapopulation Dynamics: Effects of Spatial Heterogeneity and Spatial Structure

拟寄生物-宿主种群动态：空间异质性和空间结构的影响

• 批准号: 9317702
• 负责人: Andrew Taylor
• 金额: $ 3.49万
• 依托单位: University of Hawaii
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1994
• 资助国家: 美国
• 起止时间: 1994-06-15 至 1996-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9317702&HistoricalAwards=false
• 关键词: Parasitoid; Host; Metapopulation; Dynamics; Effects

9317702 Taylor This project investigates the dynamics of mathematical models of metapopulations of insect predator-prey interactions. Previous theory has shown metapopulations can be more persistent than isolated populations, but such theory has been based on excessively simple assumptions about spatial structure. This project attempts to make metapopulation models more realistic by including complex spatial structure in models. The project will also attempt to develop a better understanding of the causes of metapopulation persistence and asynchronous fluctuations in population size. %%% This research is important because it will help in the development of more realistic population models; most natural populations show some degree of spatial subdivision, yet current models do not take this into account. The results can be directly applied to biological pest control and to conservation biology. Improved understanding of when and why metapopulations persist should enhance our ability to manage pest populations and conserve populations of endangered species. ***

9317702泰勒这个项目研究昆虫捕食者-猎物相互作用的集合种群的数学模型的动力学。以前的理论表明，集合种群可以比孤立的种群更持久，但这种理论建立在关于空间结构的过于简单的假设基础上。该项目试图通过在模型中包含复杂的空间结构来使集合种群模型更加逼真。该项目还将试图更好地了解集合种群、持久性和种群规模不同步波动的原因。这项研究很重要，因为它将有助于开发更现实的种群模型；大多数自然种群显示出一定程度的空间细分，但目前的模型没有考虑到这一点。研究结果可直接应用于病虫害生物防治和保护生物学。更好地理解集合种群何时以及为什么持续存在，应该会增强我们管理害虫种群和保护濒危物种种群的能力。***