Competitive coexistence and life cycle stages
Competitive coexistence and life cycle stages
批准号:
0414212
负责人:
Jim Cushing
金额:
$36.79万
依托单位:
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
项目状态:
已结题
起止时间:
2004-09-01 至 2008-08-31
中文摘要
库欣竞争是生物物种之间最基本的相互作用之一。研究人员仔细研究了衍生的模型,以了解在强种间竞争下促进阶段-结构-介导共存现象的数学和生物学机制。允许降维的特殊情况在研究中特别重要,因为这些情况适用于使用稳定性理论和分岔方法进行严格的数学分析。通过研究各种其他模型,包括允许大量生命阶段、不同类型的阶段间竞争情景、不同类型的非线性和两个以上竞争物种的群落的模型,研究了竞争共存现象的鲁棒性。这项研究的重要性在于研究理论生态学的基本原理,即生物物种之间的共存需要某种形式的生态位分离,以减少种间竞争。该项目有助于理解生态位和竞争共存。总的来说,它可以导致理解和开发机制来处理诸如自然资源管理、物种引入或再引入生态系统、生态系统收获的可持续产量以及害虫管理的生物防治等问题的能力。
英文摘要
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.
期刊论文(0)
专著(0)
科研奖励(0)
会议论文
The Sixth International Conference on Mathematical Modeling and Analysis of Populations in Biological Systems
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批准号:1743497
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项目类别:Standard Grant
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资助金额:$1.8万
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财政年份:2017
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负责人:Jim Cushing
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依托单位:
Collaborative Research: Climate Change, Cannibalism, and Reproductive Synchrony: The Effect of Food Shortages on Life History Strategies of Marine Organisms
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批准号:1407564
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项目类别:Standard Grant
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资助金额:$30.0万
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财政年份:2014
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负责人:Jim Cushing
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依托单位:
The Dynamics and Evolution of Semelparity
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批准号:0917435
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项目类别:Standard Grant
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资助金额:$30.0万
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财政年份:2009
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负责人:Jim Cushing
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依托单位:
QEIB: Stochastic Nonlinear Population Dynamics: Mathematical Models, Biological Experiments, and Data Analyses
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批准号:0210474
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项目类别:Standard Grant
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资助金额:$22.5万
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财政年份:2002
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负责人:Jim Cushing
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依托单位:
Collaborative Research: Nonlinear Population Dynamics: Mathematical Models, Biological Experiments, and Data Analyses
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批准号:9973126
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项目类别:Standard Grant
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资助金额:$19.5万
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财政年份:1999
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负责人:Jim Cushing
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依托单位:
Mathematical Sciences: Nonlinear Demographic Dynamics: Mathematical Models, Biological Experiments, and Data Analyses
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批准号:9625576
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项目类别:Continuing Grant
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资助金额:$35.5万
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财政年份:1996
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负责人:Jim Cushing
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依托单位:
COLLABORATIVE RESEARCH: Nonlinear Demographic Dynamics: Mathematical Models, Biological Experiments, Data Analyses
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批准号:9306271
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项目类别:Continuing Grant
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资助金额:$32.0万
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财政年份:1993
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负责人:Jim Cushing
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依托单位:
Mathematical Sciences: Nonlinear Structured Growth Dynamics
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批准号:8902508
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项目类别:Standard Grant
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资助金额:$11.23万
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财政年份:1989
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负责人:Jim Cushing
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依托单位:
Mathematical Sciences: Nonlinear Strucured Growth Dynamics
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批准号:8714810
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项目类别:Standard Grant
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资助金额:$3.47万
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财政年份:1988
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负责人:Jim Cushing
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依托单位:
Mathematical Sciences: Nonlinear Structured Growth Dynamics
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批准号:8601899
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项目类别:Standard Grant
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资助金额:$2.1万
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财政年份:1986
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负责人:Jim Cushing
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依托单位:
Nonlinear Oscillations in Age Dependent Population Dynamics
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批准号:7901307
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项目类别:Standard Grant
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资助金额:$3.66万
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财政年份:1979
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负责人:Jim Cushing
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依托单位:
海外基金