Logistic Equation and Population Growth


The experimental results below are taken from the textbook by C.J. Krebs Ecology: the experimental analysis of distribution and abundance.

Growth of a population of yeast cells (data from T. Carlson (1931) after Pearl (1927))


Trends in the numbers of the flour bettle (after Gause (1931))


Population growth of the flour bettle (after Park, Leslie, and Mertz (1964)).
Over longer times the experiment shows decay and variability rather than a stationary population.

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