How can the bottleneck cause a decrease in genetic diversity even if a population can recover from it?
Genetic drift can cause big losses of genetic variation for small populations. Population bottlenecks occur when a population’s size is reduced for at least one generation. Because genetic drift acts more quickly to reduce genetic variation in small populations, undergoing a bottleneck can reduce a population’s genetic variation by a lot.
Related Questions
- How does evolution through natural selection result in changes in biodiversity through the increase or decrease genetic diversity within a population?
- How are autosomal traits including recessive genetic disorders that are carried in a population related to mendels observations of heredity?
- How do population genetic parameters affect germination of the heterocarpic species Atriplex tatarica (Amaranthaceae)?
