Population Dynamics Examples
Population dynamics models examine how births, deaths, and competition drive changes in group size. They reveal the forces that cause populations to boom when resources are plentiful and taper off or crash when constraints tighten.
These examples highlight classic mechanisms such as logistic growth and predator-prey cycles. By experimenting with them you can see how simple feedback loops create rich behavior that mirrors trends in ecology, finance, and social systems.
Select an example to explore it in the playground.
Beginner - Introductory Models
Fishery Simulation
A fishery simulation of stocks, flows, and feedback loops managing fish populations.
Level:Beginner
Intermediate - Classic Dynamics
Predator-Prey (Lotka–Volterra, SciPy)
A predator-prey simulation using the Lotka-Volterra equations.
Level:Intermediate
Predator-Prey (Lotka–Volterra, SimPy)
Discrete-time SimPy approximation of the predator–prey model.
Level:Intermediate
SIR Model with Vaccination
An SIR vaccination simulation modeling epidemics with optional vaccination.
Level:Intermediate
Advanced - Complex Simulations
Logistic Map
A logistic map simulation that iterates x_{n+1}=r*x_n*(1-x_n) to illustrate chaos.
Level:Advanced