An investigation of the global properties of a two-dimensional competing species model

An investigation of the global properties of a two-dimensional competing species model
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二维竞争物种模型全局特性的研究

DOI:
10.3934/dcdsb.2008.10.109
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发表时间:
2008
影响因子:
1.2
通讯作者:
M. E. Burke
M. E. Burke
中科院分区:
数学4区
文献类型:
--
作者:
Patrick J. Johnson;M. E. Burke

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在本文中,我们演示了如何全球动态的生物模型可以分析。特别是,作为一个例子,我们考虑一个竞争物种种群模型的基础上离散的原始Lotka-Volterra方程。我们分析了当地和全球的动态特性所产生的二维不可逆动力系统的情况下,种间竞争被认为是“弱”,“强”和“混合”。本文的主要结果来自于对一些改变吸引子及其盆结构的全局分支的研究。这些分歧的研究使用的临界曲线,一个强大的工具,用于分析的整体性质的不可逆的二维映射。
In this paper we demonstrate how the global dynamics of a biological model can be analysed. In particular, as an example, we consider a competing species population model based on the discretisation of the original Lotka-Volterra equations. We analyse the local and global dynamic properties of the resulting two-dimensional noninvertible dynamical system in the cases when the interspecific competition is considered to be “weak”, “strong” and “mixed”. The main results of this paper are derived from the study of some global bifurcations that change the structure of the attractors and their basins. These bifurcations are investigated by the use of critical curves, a powerful tool for the analysis of the global properties of noninvertible two-dimensional maps.
DOI: --
发表时间: 2020
期刊:
影响因子: --
作者:
Hironori Ito;Tetsuo Nakano;Shintaro Nomura and Kazuhiko Misawa;井上紗奈・本田秀仁・森数馬・椎名武夫・山本(前田)万里・曲山幸生・永井成美・和田有史;Guest Martin;Zin Arai
通讯作者: Zin Arai