Genetic drift – which is a random change in gene frequencies in a population due to random sampling – which can be caused by calamities like wild fires (in thus case a hurricane), will cause a sharp decrease in genetic diversity in the population.
Explanation:
The drastic reduction in the population sized due to the hurricane means there are few gene variations in the population that are left after the devastation. This means the population becomes very susceptible to changes in its environment – due to low gene variability on which natural selection acts upon. IN some cases the local population may be unable to recuperate and become extinct
Learn More:
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