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Dynamics of transitions in population interactions

机译:人口相互作用转变的动力学

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摘要

A two-species model with transitions between population interactions is studied. Rich dynamics is observed as the number and quality of equilibria change when model parameters and functional responses vary. Existence and stability of equilibria and nonexistence of periodic solutions are established, existence of some bifurcation phenomena are analytically and numerically studied, explicit threshold values are computed to determine the kind of interaction (mutualism, competition, hostparasite) between the species, and several numerical examples are provided to illustrate the main results in this work.
机译:研究了种群相互作用之间具有过渡的两种种群模型。当模型参数和功能响应变化时,随着平衡数和质量变化,观察到丰富的动力学。建立了平衡点的存在性和稳定性以及周期解的不存在性,对一些分叉现象的存在进行了分析和数值研究,计算了明确的阈值以确定物种之间相互作用的类型(互惠,竞争,宿主寄生),并提供了一些数值示例提供以说明这项工作的主要结果。

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