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Environmental stochasticity

Environmental stochasticity is the type of variability in population growth rates that probably occurred to you when I first brought the subject up. It refers to variation in birth and death rates from one season to the next in response to weather, disease, competition, predation, or other factors external to the population. Environmental stochasticity can affect even populations that are quite large. We'll see quantitative examples of just how large the effect can be a little later.

Kent Holsinger 2013-08-29