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Module 1: Genética de poblaciones

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Aislamiento reproductivo

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XSIQ
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Biology - Reproductive isolation

Reproductive isolation

How could a behavioural mechanism, such as the courtship display of
these wild turkeys, lead to reproductive isolation?

Reproductive isolation can occur as a result of a number of mechanisms.
These include:

* seas, mountain barriers, deserts, ice sheets;

* genitalia may not 'fit';

* courtship rituals, signs and signals are specific, triggering a
response only in members of the opposite sex of the same species;

* pheromones are specific, gametes must be chemically compatible for
fertilisation to take place;

* closely related species may live in the same major habitat but in
different micro-habitats within it;

* related species may have different breeding seasons.

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