What are the differences between the bottleneck effect and the founder effect in terms of their impact on genetic diversity within a population?

The bottleneck effect occurs when a large population is drastically reduced in size, leading to a loss of genetic diversity. The founder effect happens when a small group of individuals establishes a new population, resulting in a limited gene pool. Both effects can reduce genetic diversity, but the bottleneck effect is caused by a sudden event, while the founder effect is due to the small initial population size.