Stochasticity found in nature is considered to be colored (autocorrelated), which means that values in the time series are dependent on previous ones.

For instance, measurements of air temperature are dependent on values measured time steps before. Temperatures seldom fluctuate from extremely low to extremely high values in just a few short time steps. Low temperature, one short time step before, gives a high possibility of low temperature also in the next time step.

All subpopulations within species are interconnected and have the same probability of dispersal between each other, there is no distance dependence between subpopulations.

Stability of total density and population densities were measured as: mean / standard deviation