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Below is a hypothesis about why male white-crowned sparrows sing dialects.
Is this hypothesis a genetic-developmental explanation, a physiological-psychological explanation, an adaptive value explanation, or one relating to evolutionary history?
The ability to sing the local dialect enables a bird to form bonds with others in the area so that they can adjust their total reproductive output, reducing the risk of local overpopulation.

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Answer:

The answer is an adaptive value explanation.

Explanation:

Adaptive value is the effect that the behavior of an organism has on the reproductive fitness of the organism.

This can help offspring to cope with their new surrounding or condition.

It is a quantity that can be measured by contribution of an organism to the gene pool of their offspring. This measurement can be releasing of chemicals to avoid predators, sexual mimicry by some animals or trying to imitate so as mix with others.

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