Competitive coexistence and life cycle stages

竞争共存和生命周期阶段

基本信息

批准号：
0414212
负责人：
Jim Cushing
金额：
$ 36.79万
依托单位：
University of Arizona
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
2004
资助国家：
美国
起止时间：
2004-09-01 至 2008-08-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=0414212&HistoricalAwards=false
关键词：
Competitive coexistence life cycle stages

项目摘要

Cushing Competition is one of the most fundamental interactions occurringamong biological species. The investigators study carefully derived modelsin order to understand the mathematical and biological mechanisms thatpromote the stage-structure-mediated coexistence phenomenon that occursunder strong inter-specific competition. Special cases that allow adimensional reduction are particularly important in the study because thesecases are amenable to rigorous mathematical analysis using stability theoryand bifurcation methods. The robustness of the competitive coexistencephenomenon is investigated by studying a variety of other models, includingmodels allowing a large number of life stages, different kinds ofinter-stage competition scenarios, different types of nonlinearities, andcommunities of more than two competing species. The importance of the investigation is to study the underlyingprinciple in theoretical ecology that states coexistence among biologicalspecies requires some sort of niche separation that decreasesinter-specific competition. This project contributes to the understandingof ecological niche and competitive coexistence. Overall, it can lead tothe ability to understand and develop mechanisms to handle problems such asnatural resource management, introduction or re-introduction of speciesinto ecosystems, sustainable yield in the harvesting of ecosystems, andbiocontrol in pest management.

库欣竞争是发生的最基本的相互作用之一。研究人员的研究仔细得出了模型，以了解涉及阶段结构介导的共存现象的数学和生物学机制，这些现象发生在强烈的特定间间竞争中。在研究中，允许减少授课的特殊情况尤为重要，因为使用稳定性理论和分叉方法可以接受严格的数学分析。通过研究其他各种模型，包括允许大量生活阶段，不同种类的阶段竞争场景，不同类型的非线性，非线性和社区的多种模型，研究了竞争性共构烯瘤的鲁棒性。调查的重要性是研究理论生态学的基本原理，该基本生态学指出生物种类之间的共存需要某种降低特定于特定于特定于竞争的利基分离。该项目有助于了解生态位和竞争性共存。总体而言，它可以领导能力理解和开发机制，以处理诸如物种生态系统的自然资源管理，引入或重新引入或重新引入生态系统中的可持续产量，而生态系统的收获中的可持续产量以及害虫管理中的biocontrol。