Population Models: Exponential; Logistic; Logistic-Harvest
This applet shows 50 generations of population size for three models: a exponential model, a simple logistic model, and a logistic model with a constant harvest (e.g. a fishing season with a fixed number of fish taken each year/generation).
Use the sliders to adjust the various parameters (natural growth rate, carrying capacity, beginning population, and annual harvest permitted).