Bottlenecks and Founder Effects. Genetic drift can cause big losses of genetic variation for small populations. Population bottlenecks occur when a populations size is reduced for at least one generation.ottlenecks and Founder Effects. Genetic drift can cause big losses of genetic variation for small populations. Population bottlenecks occur when a populations size is reduced for at least one generation.
Chernobyl, or Chornobyl, is the name of a city situated in northern Ukraine near the border with Belarus. Chernobyl was largely abandoned following the disaster at the Chernobyl Nuclear Power Plant located 14.5 kilometres (9 miles) away.
The âChernobyl Nuclear Power Plant Zone of Alienationâ is the officially designated exclusion area around the site of the Chernobyl nuclear reactor disaster. It is commonly known as the âChernobyl Exclusion Zoneâ or simply âThe Zoneâ.