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DY: Dynamik und Statistische Physik

DY 46: Poster

DY 46.80: Poster

Thursday, March 30, 2006, 16:00–18:00, P1

Formation of species diversity due to self-organized criticality — •K. Morawetz^1,2, N. Amecke¹, R. Radünz¹, M. Döring¹, and M. Schreiber¹ — ¹Institute of Physics, Chemnitz University of Technology, 09107 Chemnitz, Germany — ²Max-Planck-Institute for the Physics of Complex Systems, Nöthnitzer Str. 38, 01187 Dresden, Germany

The occurrence of species diversity due to a change in environmental conditions is simulated by a slight modification of the Bak-Sneppen model. We find that the forced separation of individuals leads to a separation of mutation probabilities and consequently to a bifurcation of the specie.