Population Dynamics on Complex Food Webs (CROSBI ID 161599)
Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Palamara, Gian Marco ; Zlatić, Vinko ; Scala, Antonio ; Caldarelli, Guido
engleski
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.
complex networks; food webs; population dynamics
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Podaci o izdanju
Povezanost rada
Fizika, Matematika, Biologija