The roles of the Moran effect and dispersal in synchronizing oscillating populations
The roles of the Moran effect and dispersal in synchronizing oscillating populations
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DOI：
10.1016/j.jtbi.2011.08.033
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发表时间：
2011-11-21
影响因子：
2
通讯作者：
Hastings, Alan
中科院分区：
文献类型：
--
作者：
Goldwyn, Eli E.;Hastings, Alan
种群动态的空间同步模式是一种戏剧性的现象，它为揭示控制自然种群在时间和空间上的动态的力量提供了潜力。先前的生态研究重点关注单独作用的确定性或随机力，重点关注长期行为，或通常由两个相互作用的空间位置组成的小系统。利用弱耦合振荡器动力学的思想，重点关注同步的时间动力学，我们开发了一种综合方法，将同步模式解释为确定性力和随机力之间相互作用的结果。收敛的时间尺度可以提供一个有用的工具来确定确定性和随机影响的相对重要性。我们的方法既适用于先前分析过的特定系统（例如疾病动态），也适用于一系列利用者受害者系统。 (C) 2011 Elsevier Ltd. 保留所有权利。
Patterns of spatial synchrony of population dynamics are dramatic phenomena that provide the potential for unraveling forces controlling the dynamics of natural populations in time and space. Prior ecological research has focused on attention to either deterministic or stochastic forces acting separately, with an emphasis on long term behavior, or on small systems consisting often of two interacting spatial locations. Using ideas from the dynamics of weakly coupled oscillators with an emphasis on the temporal dynamics of synchrony we develop a synthetic approach that explains patterns of synchrony as the result of an interplay between deterministic and stochastic forces. The temporal scale of convergence can provide a useful tool for determining the relative importance of deterministic and stochastic influences. Our approach applies both to specific systems that have been previously analyzed such as disease dynamics, and to a range of exploiter victim systems. (C) 2011 Elsevier Ltd. All rights reserved.