摘要翻译:
噪音和空间自由度是大多数生态系统的特征。它们对具有周期性种间竞争的种群协同进化的影响的某些方面在最近的实验中得到了证明[例如B.Kerr et al.,Nature{\bf 418},171(2002)]。为了从理论上更好地理解这些现象,我们考虑了一个三个物种表现出循环优势的空间模型。利用基于个体的描述,以及随机偏微分和确定性反应扩散方程,我们解释了不同层次上的随机涨落和空间扩散,并展示了纠缠螺旋的迷人模式是如何出现的。我们通过计算时空相关函数使我们的分析更加合理,并给出了螺旋波传播的前沿速度和波长的解析表达式。
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英文标题:
《Noise and Correlations in a Spatial Population Model with Cyclic
  Competition》
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作者:
Tobias Reichenbach, Mauro Mobilia, Erwin Frey
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最新提交年份:
2007
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分类信息:
一级分类:Quantitative Biology        数量生物学
二级分类:Populations and Evolution        种群与进化
分类描述:Population dynamics, spatio-temporal and epidemiological models, dynamic speciation, co-evolution, biodiversity, foodwebs, aging; molecular evolution and phylogeny; directed evolution; origin of life
种群动力学;时空和流行病学模型;动态物种形成;协同进化;生物多样性;食物网;老龄化;分子进化和系统发育;定向进化;生命起源
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一级分类:Physics        物理学
二级分类:Statistical Mechanics        统计力学
分类描述:Phase transitions, thermodynamics, field theory, non-equilibrium phenomena, renormalization group and scaling, integrable models, turbulence
相变,热力学,场论,非平衡现象,重整化群和标度,可积模型,湍流
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一级分类:Physics        物理学
二级分类:Biological Physics        生物物理学
分类描述:Molecular biophysics, cellular biophysics, neurological biophysics, membrane biophysics, single-molecule biophysics, ecological biophysics, quantum phenomena in biological systems (quantum biophysics), theoretical biophysics, molecular dynamics/modeling and simulation, game theory, biomechanics, bioinformatics, microorganisms, virology, evolution, biophysical methods.
分子生物物理、细胞生物物理、神经生物物理、膜生物物理、单分子生物物理、生态生物物理、生物系统中的量子现象(量子生物物理)、理论生物物理、分子动力学/建模与模拟、博弈论、生物力学、生物信息学、微生物、病毒学、进化论、生物物理方法。
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一级分类:Quantitative Biology        数量生物学
二级分类:Quantitative Methods        定量方法
分类描述:All experimental, numerical, statistical and mathematical contributions of value to biology
对生物学价值的所有实验、数值、统计和数学贡献
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英文摘要:
  Noise and spatial degrees of freedom characterize most ecosystems. Some aspects of their influence on the coevolution of populations with cyclic interspecies competition have been demonstrated in recent experiments [e.g. B. Kerr et al., Nature {\bf 418}, 171 (2002)]. To reach a better theoretical understanding of these phenomena, we consider a paradigmatic spatial model where three species exhibit cyclic dominance. Using an individual-based description, as well as stochastic partial differential and deterministic reaction-diffusion equations, we account for stochastic fluctuations and spatial diffusion at different levels, and show how fascinating patterns of entangled spirals emerge. We rationalize our analysis by computing the spatio-temporal correlation functions and provide analytical expressions for the front velocity and the wavelength of the propagating spiral waves. 
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PDF链接:
https://arxiv.org/pdf/710.0383