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arXiv 1210.7019physics.bio-phphysics.soc-phq-bio.PE
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空间石头剪刀布生态系统中的实验室聚类

Labyrinthine clustering in a spatial rock-paper-scissors ecosystem

Jeppe Juul, Kim Sneppen, Joachim Mathiesen

摘要:

空间石头剪刀布生态系统,其中三个物种周期性地相互作用,是空间结构如何维持生物多样性的一个典型例子。我们在这里考虑这样一个系统的广泛的相互作用率。当一个物种生长得非常缓慢时,这个物种和它的猎物通过自组织成一个第三个物种繁殖的网状结构来控制系统。两个主要物种的簇尺寸分布具有重尾,并且通过复杂的空间反馈回路来稳定配置。我们引入了一个新的统计措施,量化的空间系统中的聚类量的平均场近似比较。据此,我们能够定量地解释了该结构如何减慢动力学和稳定系统。

英文摘要:

The spatial rock-paper-scissors ecosystem, where three species interact cyclically, is a model example of how spatial structure can maintain biodiversity. We here consider such a system for a broad range of interaction rates. When one species grows very slowly, this species and its prey dominate the system by self-organizing into a labyrinthine configuration in which the third species propagates. The cluster size distributions of the two dominating species have heavy tails and the configuration is stabilized through a complex, spatial feedback loop. We introduce a new statistical measure that quantifies the amount of clustering in the spatial system by comparison with its mean field approximation. Hereby, we are able to quantitatively explain how the labyrinthine configuration slows down the dynamics and stabilizes the system.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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