Some Properties of the Speciation Model for Food-Web Structure - Mechanisms for Degree Distributions and Intervality

Thumbnail Image

Date

Authors

Journal Title

Journal ISSN

Volume Title

Publisher

Abstract

Description

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.
23 pages, 6 figures, minor rewrites

Keywords

Populations and Evolution, Molecular Networks

Citation

URI

http://salesiana.dossiersoluciones.com/handle/123456789/88539

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/q-bio/0502007
 http://arxiv.org/abs/q-bio/0502007

Collections

arXiv