There have been many known cases of population bottleneck in the recent past.

There has been no evidence for population bottlenecks in the species.

It is often the result of a population bottleneck.

This indicates that the species went through a severe population bottleneck.

The population bottleneck is seen only in the Y chromosome.

A common example of a population bottleneck is the Northern elephant seal.

Population bottlenecks are when population size reduces for a short period of time.

The effect of ancient population bottlenecks on human phenotypic variation.

Population bottlenecks thus tend to slow down observed mutation rates.

Further deductions can sometimes be inferred from an observed population bottleneck.

Also, in some populations such as the Crater lions, it is known that a population bottleneck has occurred.

A population bottleneck may also cause a founder effect even though it is not strictly a new population.

These restricted ranges may result in population bottlenecks that reduce genetic variation.

When populations contract, as in a population bottleneck, more germline mutations are lost.

They often result in population bottlenecks, which have harmful consequences for the survival of that population.

Four generations after this population bottleneck the prevalence of achromatopsia is 5% with a further 30% as carriers.

Genetic diversity due to the population bottleneck that occurs at low population density.

It is also normal that breeds go through population bottlenecks because of the popular sire syndrome.

This low genetic variability was allegedly due to a population bottleneck caused by intense hunting in the 19th century.

In this example the population contracted to just four random survivors, a phenomenon known as population bottleneck.

A population bottleneck is when a population contracts to a significantly smaller size over a short period of time due to some random environmental event.

Based on molecular data, a population bottleneck among ancestors of modern Finns is estimated to have occurred about 4000 years ago.

The founder effect can cause rapid, individual-based speciation and is the most dramatic example of a population bottleneck.

Periods of low population density may also have created moderate population bottlenecks, reducing genetic diversity.

The species encountered a population bottleneck and close family relatives were forced to mate with each other, or inbreeding .