eprintid: 1079
rev_number: 17
eprint_status: archive
userid: 6
dir: disk0/00/00/10/79
datestamp: 2012-01-26 09:06:19
lastmod: 2013-11-21 11:14:11
status_changed: 2012-01-26 09:06:19
type: article
metadata_visibility: show
creators_name: Palamara, Gian Marco 
creators_name: Zlatic, Vinko
creators_name: Scala, Antonio
creators_name: Caldarelli, Guido
creators_id: 
creators_id: 
creators_id: 
creators_id: guido.caldarelli@imtlucca.it
title: Population Dynamics On Complex Food Webs
ispublished: pub
subjects: HN
subjects: QC
subjects: QH301
divisions: EIC
full_text_status: none
keywords: Complex networks; food webs; population dynamics
abstract: 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.
date: 2011
date_type: published
publication: Advances in Complex Systems
volume: 14
number: 04
publisher: World Scientific Publishing
pagerange: 635
id_number: doi:10.1142/S0219525911003116
refereed: TRUE
issn: 0219-5259
official_url: http://dx.doi.org/10.1142/S0219525911003116
related_url_url: http://arxiv.org/abs/1002.0470
citation:   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)