The Abaco Islands. The Abaco Islands consists of several islands and cays (very small islands) that are great for exploring and snorkeling. Andros Island is the Bahamas' largest island but it's also the least developed. Like other Out Islands, Andros Island is ideal for eco-travelers.
bottleneck (bÅt'l-nÄk') An abrupt and severe reduction in the number of individuals during the history of a species, resulting in the loss of diversity from the gene pool. The generations following the bottleneck are more genetically homogenous than would otherwise be expected. Bottlenecks often occur in consequence of a catastrophic event.
The bottleneck effect is _______________. a sudden reduction in population size due to a change in the environment. The resulting gene pool may no longer be reflective of the original populationâs gene pool. If the population remains small, it may be further affected by genetic drift. Genetic drift is significant in small populations.