Chapter 9: Problem 9.8
February 23, 2021
eco 561 w4
February 23, 2021

environment one question

Genetic Drift can occur when:


an “unlucky” individual in a population does not reproduce, meaning some of their genes are not as frequently observed in the population’s “gene pool.”


a disaster of some sort wipes out a group of individuals from a given population, reducing genetic diversity because only a subset of the original genes of the population’s “gene pool” are left after the disaster.


an extreme wind event may move a species, say flying squirrels for example, from one habitat to another. The individuals who are blown to the new site have only a certain subset of genes from the original population’s gene pool, so the new population has a different genetic structure/gene frequency distribution.


when a population is completely obliterated locally, meaning no individuals are left. However, some individuals of the species may exist in other habitats.

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