Unformatted text preview: move to an area isolated from the original population. The new population, with a small gene pool, will be established with a preponderance of a few genotypes. (like the bottleneck). The dispersed frequency will determine the character of the new population, which may differ significantly from the original population (which is how the founder effect differs from a bottleneck; in the bottleneck, the gene pool consists of the survivors from the original pool, rather than migrants). An example of this is the frequency of polydactyly in the Pennsylvania Dutch of the United States. Founder populations can lead to adaptive radiation in some environments....
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- Spring '10