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具有时滞效应的三物种食物链混沌行为研究 被引量:4

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摘要 研究了具有时滞效应的三物种食物链模型,首先分析了与之相应的无时滞效应模型,模型最终趋于稳定焦点,但当考虑时滞效应时,系统会随时滞效应增强逐渐经历Hopf分岔和倍周期分岔,最终走向混沌,这实质上从一个全新的角度阐释了生态系统中复杂混沌行为的成因.并且通过研究由时滞效应引起的倍周期分岔,找到了Feigenbaum常数可能适用的另一类系统.
出处 《自然科学进展》 北大核心 2005年第8期1020-1024,共5页
基金 国家自然科学基金(批准号:50406018)天津大学杰出人才引进基金(项目号:W20201)教育部留学回国人员科研启动基金(项目号:413042)资助
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参考文献7

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共引文献19

同被引文献23

  • 1黑力军.一类具有扩散的三种群生态模型正解的存在性[J].应用数学学报,2006,29(1):184-189. 被引量:5
  • 2莫嘉琪,张伟江,何铭.HIV病毒传播的动力学研究的同伦映射解法[J].应用数学,2007,20(3):441-445. 被引量:4
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  • 6Sun Y G, Saker S H. Positive periodic solutions of discrete three-level food-chain model of Holling type Ⅱ[J]. Appl Math Comput, 2006,180 (1) : 353-365.
  • 7Chen Y Y, Yu J, Sun C J. Stability and Hopf bifurcation analysis in a three-level food chain system with delay[J]. Chaos, Solitons & Fractals, 2007,31 (3) : 683-694.
  • 8Xu R, Chaplain M A J, Davidson F A. A Lotka-Volterra type food chain model with stage structure and time delays[J]. Math Anal Appl, 2006,315 (1) : 90-105.
  • 9Yamaguchia M, Takeuchib Y, Ma W B. Dynamical properties of a stage structured three-species model with intraguild predation[J]. Comp Appl Math, 2007,201 (2) : 327-338.
  • 10Song X Y, Chen L S. Optimal harvesting and stability for a two-species competitive system with stage structure[J]. Math Biosci,2001,170(2) : 173-186.

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