Individual-based model with global competition interaction: fluctuation effects in pattern formation.
We present some numerical results obtained from a simple individual-based model that describes clustering of organisms caused by competition. Our aim is to show that, even when a deterministic description developed for continuum models predicts no pattern formation, an individual-based model displays well-defined patterns, as a consequence of fluctuation effects caused by the discrete nature of the interacting agents.
Brigatti
E
E
Instituto de Física, Universidade Federal Fluminense, Campus da Praia Vermelha, 24210-340 Niterói, Rio de Janeiro, Brazil. edgardo@if.uff.br
Schwämmle
V
V
Neto
Minos A
MA
D000818:Animals; D005075:Biological Evolution; D003163:Competitive Behavior; D003198:Computer Simulation; D017753:Ecosystem; D006801:Humans; D008954:Models, Biological; D011157:Population Dynamics; D012641:Selection, Genetic