What impact can the bottleneck effect have on populations that have rebounded after near extinction?

Generally speaking the main issue with the recovery of a population after a bottleneck event has to do with the lack of genetic diversity. With a limited gene pool to provide genetic material the subsequent generations may have reproduction problems because of the small population size. The recovery time for this is a long and slow process, allowing the population to increase to the point where random genetic mutations can occur and incorporate throughout the remaining population.

The truman doctrine was an american foreign policy whose stated purpose was to counter soviet geopolitical expansion during the cold war. it was announced to congress by president harry s. truman on march 12, 1947, and further developed on july 12, 1948, when he pledged to contain threats to greece and turkey