Rossberg A G, Matsuda H, Amemiya T, Itoh K
Yokohama National University, Graduate School of Environment and Information Sciences, Yokohama, Kanagawa 240-8501, Japan.
J Theor Biol. 2006 Jan 21;238(2):401-15. doi: 10.1016/j.jtbi.2005.05.025. Epub 2005 Jul 20.
We present a mathematical analysis of the speciation model for food-web structure, which had in previous work been shown to yield a good description of empirical data of food-web topology. The degree distributions of the network are derived. Properties of the speciation model are compared to those of other models that successfully describe empirical data. It is argued that the speciation model unifies the underlying ideas of previous theories. In particular, it offers a mechanistic explanation for the success of the niche model of Williams and Martinez and the frequent observation of intervality in empirical food webs.
我们对食物网结构的物种形成模型进行了数学分析，在之前的工作中已表明该模型能很好地描述食物网拓扑结构的经验数据。推导出了该网络的度分布。将物种形成模型的性质与其他成功描述经验数据的模型的性质进行了比较。有人认为，物种形成模型统一了先前理论的基本思想。特别是，它为威廉姆斯和马丁内斯的生态位模型的成功以及在经验食物网中频繁观察到的间隔性提供了一个机制性解释。
