Which is an example of environmental stochasticity?
I. changes in the weather that increase or decrease survival by a small amount
II. variation in individual health that affects likelihood of death
III. forest fires that kill large number of individuals every 10 to 50 years

Question

Quizplus · Accepted Answer

Environmental stochasticity refers to random, unpredictable events that affect the survival or reproduction of individuals in a population. Option I refers to changes in weather, which can affect survival in small amounts. Option III refers to forest fires that can kill a large number of individuals every few years. Both these options represent environmental stochasticity. Option II refers to variation in individual health, which is not considered stochastic because it is not a random event; rather, it is determined by genetics, behavior, and environmental factors.

Which Is an Example of Environmental Stochasticity