Agents are defined as entities embedded in an environment with which they interact; they are able to see it through sensors and act upon it through actuators (Russell and Norvig 1995).

In the model the agents occupy cells that depict the agent identification.

Agents have the following attributes:

• Vision: (number of cells in the neighborhood) range of vision of the agent to search for resources on the landscape.

• Energy spent to survive: amount of energy necessary to survive at each model step.

• Maximum absorption of energy: maximum capacity for energy absorption of agent per model step.

• energy spent to move: amount of energy an agent spends to move across a cell per model step.

• Average age: average of a normal distribution that determines the likelyhood of agent death at a model time step.

• Type: group to which the agent belongs.

Attribute values and Parameters

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