Logistic Growth This
model illustrates resource-limited population growth. Populations have
a per-capita growth rate and carrying capacity. Two populations
are compared on three graphs: N vs time, dN/dt vs N, and dN/Ndt vs N.
Individuals in the populations are viewed in windows, illustrating that,
even at carrying capacity, there are still births and deaths in the
|Population Estimation Knowing how many individuals are in a population can be critical. But how can you tell how many there are, when there are too many to count? This model simulates a pond of tadpoles. The population size can be estimated in three ways: direct sampling, sampling with removal, and mark/recapture.|