Wisents are forest dwelling relatives of the America Bison. The last wild wisent was killed in Transylvania in 1970. Today, all surviving wisents are descendants of twelve individuals. In 2000, there were 3,000 individuals, in zoos and reintroduced into forests of Russia, Poland, and Belarus. This is an example of:
Question options:
bottleneck effect
founder effect
natural selection
gene flow

Respuesta :

The example of the wisent forest-dwelling relatives of the America Bison represents a Bottleneck effect.

What is the Bottleneck effect?

A Bottleneck effect is a genetic phenomenon where the number of individuals and population size decrease to excessively low values for a given species.

A Bottleneck effect is associated with a loss of fundamental genetic variation to face environmental changes and conditions.

In conclusion, the example of the wisent forest-dwelling relatives of the America Bison represents a Bottleneck effect.

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