Model gallery : individual-based disaggregation

Individual-based model of population dynamics

This shows how amazingly simple it is to make an individual-based model of population dynamics in Simile. We simply create a population submodel, add in symbols for the initial number, birth and death. In this model, the probabilities of reproduction and death are age-dependent, and reproduction also depends on the total population size, which is simply obtained by summing the number of individuals.

Since this is a stochastic model, each run is different. The graph shows the result of three runs., showing the population increasing and hovering around an equilibrium.