Population Dynamics on Complex Food Webs
Populations and Evolution
2012-09-13 v2
Abstract
In this work we analyse the topological and dynamical properties of a simple model of complex food webs, namely the niche model. In order to underline competition among species, we introduce "prey" and "predators" weighted overlap graphs derived from the niche model and compare synthetic food webs with real data. Doing so, we find new tests for the goodness of synthetic food web models and indicate a possible direction of improvement for existing ones. We then exploit the weighted overlap graphs to define a competition kernel for Lotka-Volterra population dynamics and find that for such a model the stability of food webs decreases with its ecological complexity.
Cite
@article{arxiv.1002.0470,
title = {Population Dynamics on Complex Food Webs},
author = {Gian Marco Palamara and Vinko Zlatic and Antonio Scala and Guido Caldarelli},
journal= {arXiv preprint arXiv:1002.0470},
year = {2012}
}
Comments
11 Pages, 5 Figures, styles enclosed in the submission