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Population Dynamics On Complex Food Webs

Palamara, Gian Marco and Zlatic, Vinko and Scala, Antonio and Caldarelli, Guido Population Dynamics On Complex Food Webs. Advances in Complex Systems, 14 (04). p. 635. ISSN 0219-5259 (2011)

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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.

Item Type: Article
Identification Number: 10.1142/S0219525911003116
Uncontrolled Keywords: Complex networks; food webs; population dynamics
Subjects: H Social Sciences > HN Social history and conditions. Social problems. Social reform
Q Science > QC Physics
Q Science > QH Natural history > QH301 Biology
Research Area: Economics and Institutional Change
Depositing User: Ms T. Iannizzi
Date Deposited: 26 Jan 2012 09:06
Last Modified: 21 Nov 2013 11:14
URI: http://eprints.imtlucca.it/id/eprint/1079

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