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PDF 1.54 MB
DOI: http://dx.doi.org/10.7551/978-0-262-33027-5-ch082
Page 463
First published 20 July 2015

A Predator-Prey Scenario in a Virtual Ecosystem

Nesrine Ouannes, NourEddine Djedi, Yves Duthen, and Hervé Luga

Abstract (Excerpt)

One of the main topics in artificial life is the design of systems that exhibit some characteristics of living organisms. Among the great variety of biological systems that inspire and guide these researches and according to Bedau et al. (2003), three broad areas can be identified depending on their basic elements: (a) At the microscopic scale, chemical, cellular and tissular systems; Wet ALife synthesizes living systems out of biochemical substances, (b) At the mesoscopic scale, organismal and architecture systems; or the Soft ALife that uses simulations or other purely digital constructions that exhibit lifelike behavior, (c) At the macroscopic scale, collective and societal systems. In our model we try to blend at least (b) and (c) in the same simulation. In this abstract, we propose architecture to simulate a virtual ecosystem and present extended results. This ecosystem is populated with 3D artificial creatures that have to use a simple predator-prey scenario. Artificial behaviors are developed in order to control artificial creatures. The artificial creatures living in the ecosystem are divided into four classes: producers (plants), 2 kinds of consumers (herbivores and carnivores) and decomposers such as bacteria (Ouannes et al, 2014). First, we studied the behavior of herbivorous creatures (Ouannes et al, 2012), which feed on available resources in their environment.