A stress-based speciation model in lifedrop

Authors:
Marc Métivier;Claude Lattaud;Jean-Claude Heudin
Affiliations:
Laboratoire d'Intelligence Artificielle de Paris 5, UFR de Mathématiques et d'Informatique, Centre Universitaire des Saints Pères, 45, rue des Saints Pères 75006 Paris - France;Laboratoire d'Intelligence Artificielle de Paris 5, UFR de Mathématiques et d'Informatique, Centre Universitaire des Saints Pères, 45, rue des Saints Pères 75006 Paris - France;International Institute of Multimedia, Pôle Universitaire Léonard de Vinci, 92916 La Défense Cedex -- France
Venue:
ICAL 2003 Proceedings of the eighth international conference on Artificial life
Year:
2002

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Abstract

This paper presents a stress-based speciation model implemented within LifeDrop, a virtual world with bioinspired agents. In this model, individuals are distributed among species separated by a "barrier" mechanism preventing the reproduction between individuals of different species. An analysis of species dynamics in relation to stress is presented. Results show diversity maintenance and a reactive capacity during crisis situations favoring the emergence of new species.