Population Dynamics on Complex Food Webs

In this work we analyze 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.

• Publication year

  2010

• Venue

  Advances in Complex Systems

• Publication date

  2010-02-02

• Fields of study

  Biology, Mathematics, Computer Science, Environmental Science

• Identifiers
  DOI 10.1142/S0219525911003116arXiv 1002.0470
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar

• No claims are published for this paper.

• No concepts are published for this paper.

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