A portion of a bird population that resettles on an island where they establish a new population is an example of a founder effect (Option B).
What is founder effect?
The founder effect is a process where individuals of a population migrate to a new area to generate a new population.
The founder effect is associated with genetic bottleneck because it reduces the genetic variation.
In conclusion, this portion of a bird population is an example of a founder effect (Option B).
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