Evolution of Virtual Plants Interacting with their Environment
نویسندگان
چکیده
In current virtual worlds, plants are most often represented as static objects or, at best, morphological structures endowed with a simple set of growth rules. This paper presents an enhanced plant model for virtual worlds based on Artificial Life concepts. The virtual plants capture light and assimilate minerals from the environment, and their development is ruled by a set of genetic information which describes parameters concerning morphological as well as physiological processes. Two series of experiments are conducted. The first series discusses evolutionary adaptations of the virtual plants to specific fitness functions. The results reveal developmental constraints which can be related to the life of realworld plants. The second series investigates growth in environments with different lighting and soil configurations. Like natural plants, the virtual plants evolve morphologies in response to the encountered resource disposition. All simulations illustrate how evolving virtual plants can contribute to the study of natural plants, and suggest that virtual worlds allowing plants to interact with their environment may lead to a range of coevolutionary dynamics close to those observed in natural systems.
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