GENETIC variation can be used as evidence of differential reproductive success. It is for that reason that more genetically diverse populations have more chances to adapt to environmental changes.
Reproductive success, also known as evolutionary success, refers to the proportion of offspring across the lifespan of an individual.
Moreover, intraspecific genetic variation refers to differences in the nucleotide (DNA) sequences between individuals of the same population.
Genetic diversity represents the raw material on which natural selection can act, which means that certain genes can increase an organism's ability to survive and reproduce.
In consequence, genetic variation is fundamental to introduce different phenotypic traits in a population, which may affect the reproductive success of individuals of that population.
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