The gene pools of small populations are reduced compared to those of larger populations because there is less genetic diversity present in small populations. With fewer individuals, there are fewer different alleles available in the gene pool, leading to a decrease in genetic variation. This can increase the chances of inbreeding and decrease the overall fitness and adaptability of the population. In larger populations, there are more individuals contributing to the gene pool, which results in a greater diversity of alleles and a more robust genetic foundation for the population.
