The Bottleneck Effect occurs when there is a disaster of some sort that reduces a population to a small handful, which rarely represents the actual genetic makeup of the initial population. This leaves smaller variation among the surviving individuals.
A population bottleneck is an event that drastically reduces the size of a population. The bottleneck may be caused by various events, such as an environmental disaster, the hunting of a species to the point of extinction, or habitat destruction that results in the deaths of organisms.
the genetic bottleneck can lead to inbreeding depression; the reduction of the population's fitness due to an increased likelihood of breeding between relatives that share deleterious genetic variants.
Answer: predator species would be more sensitive by accumulating toxic material already accumulated in individual prey. It would also depend on different levels of pollution in different niches, so that one species would be more exposed.
