Environmental Limits to Population Growth

Free Response

Describe the rate of population growth that would be expected at various parts of the S-shaped curve of logistic growth.


In the first part of the curve, when few individuals of the species are present and resources are plentiful, growth is exponential, similar to a J-shaped curve. Later, growth slows due to the species using up resources. Finally, the population levels off at the carrying capacity of the environment, and it is relatively stable over time.