bottleneck


Also found in: Dictionary, Thesaurus, Legal, Financial, Encyclopedia, Wikipedia.
A marked decrease in gene pool diversity due to a low number of genetically distinct individuals in the population, i.e., a population bred from 2 individuals has far fewer variables on the allelic loci—a bottleneck—than a second population bred from hundreds of individuals

bottleneck

a period in the history of a population during which the number of individuals is reduced to a low number, perhaps by disease or extreme environmental conditions. As a result RANDOM GENETIC DRIFT may occur in the population. See also FOUNDER EFFECT.
References in periodicals archive ?
Bottleneck removal is a consumer-friendly approach to get there, without the federal regulations that have proven to be so politically controversial," Cohen concluded.
the main task involves "reducing cost of goods and cycle time in new technologies, while maintaining quality related to the downstream processing bottleneck.
In contrast to the bottleneck model, this scenario suggests a relatively stable parasite population as old as modern humans themselves.
Knowing exactly where the bottleneck was going to occur allowed us to increase capacity at the critical time period," says Mr Harvill.
The physician bottleneck is too valuable a resource to waste on nonvalue adding work, or work that the physician is not needed to accomplish.
Since implementing Capacity Bottleneck Analyzer, I have already saved a significant amount of time by being able to see at-a-glance where it would be best to add new virtual machines and keep my environment running at optimum performance.
Instead of eliminating the original bottleneck, it had only shifted somewhere else, without improving the performance of the total system.
The east African results suggest that two major population bottlenecks occurred in the cheetah population.
According to the study, Unclogging America's Arteries: Effective Relief for Highway Bottlenecks (1999-2004), targeting funds to fix major bottlenecks "will reduce the amount of time commuters have to spend on the road, save thousands of lives, prevent hundreds of thousands of injuries and help us safeguard the environment.
But if enough tape drives are connected to just one computer, that computer may then become the speed bottleneck.
State and civic leaders broke ground Friday on the final Los Angeles County phase of the Foothill Freeway construction - work that also brings with it good news for frustrated commuters who have endured years of bottleneck on Base Line Road.
As a result, the organization not only has to deal with the "physical" aspects of the bottleneck, but also its effects on employee morale.