Suppose the females of one strawberry population of poison dart frogs mate with males that have a bright and black skin coluration. In different population the females prefer yellow skin males . Propose a hypotheisis how these differences could have arisen in allopatric versus sympatric populations. What process or mechanism would have been responsible for the generation or maintence of skin pigment or coluration differences in each case
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Strawberry poison dart frogs possess various types of patterns and colors in different types of population. It is because of allopatric speciation. The populations were aloof from each other for at least a thousand years.
The phenotypic changes are visible due to geographic isolation. Genetic drift has been used to get the color diversity. They would have moved to a new environment and so new mutations may have taken place.
Allotropic speciation involves genetic drift, gene mutation and natural selection. Due to sexual selection also, such color pattern develops.
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