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首页> 外文期刊>Zeitschrift fur Physik, B. Condensed Matter >Simulation of chaotic behaviour in population dynamics
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Simulation of chaotic behaviour in population dynamics

机译:种群动力学中混沌行为的仿真

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摘要

In the time evolution of populations, many attractors can be found: fixed points, limit cycles and chaotic regimes. Usually, chaotic behaviour is observed in species which have well defined breeding seasons and a high fertility rate. Different mathematical models have been used in order to simulate those regimes. In this paper, we use the bitstring model introduced to simulate the evolution of age-structured populations - the Penna Model - to simulate a sort of cyclic and chaotic behaviours. In comparison with the standard logistic map, our results show a time changing λ parameter.
机译:在人口的时间演变中,可以发现许多吸引子:固定点,极限环和混乱状态。通常,在具有明确定义的繁殖季节和高生育率的物种中观察到混沌行为。为了模拟那些状态,已经使用了不同的数学模型。在本文中,我们使用引入的位串模型来模拟年龄结构化种群的演变-Penna模型-来模拟一种周期性和混乱的行为。与标准逻辑图相比,我们的结果显示了随时间变化的λ参数。

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