Explain how a bottleneck event can enrich recessive traits in the genetics of a population.

Answer

A bottleneck event severely reduces the fraction of a species able to pass on their genes to offspring. Any once rare recessive traits present in the surviving breeding population are passed to a larger fraction of the total population of offspring, thereby enriching those recessive traits in the total gene pool .

it is a limiting nutrient limited by a single nutrient in the ecosystem, & the single goes very slow.