"population bottleneck" is an accepted term in written English.
It is used to describe a marked decrease in the size of a population or species over a short period of time. For example, "The White-Throated Sparrows were facing a population bottleneck due to the loss of their natural habitat."
Although reproducing in this way depletes the genetic diversity of a population, it could help maintain numbers during critical periods, perhaps serving as a "bridging" strategy to get through a population bottleneck.
They, and others it must be said, like the idea that the Toba super-eruption was responsible for a human population bottleneck that seems to have occurred around this time.
After a population bottleneck, polyandry allows females to select sperm with the best prospects for fitness.
Whereas, the Asian rice that have a positive value may indicate an over-dominant selection or population bottleneck.
There have been many known cases of population bottleneck in the recent past.
It has since recolonized much of its historic range, but has a population bottleneck.
Such an event would cause a population bottleneck, leading to scattered, isolated populations.
Over-hunting also caused a severe population bottleneck in the northern elephant seal in the 19th century.
In this example the population contracted to just four random survivors, a phenomenon known as population bottleneck.
"Oyster populations in the north central Gulf of Mexico will likely require substantive restoration activities to overcome the population bottleneck created by the oil spill and associated response activities," the report states.
A rapid numerical increase from a maximum possible number of founding stock is sought to minimize loss of genetic diversity caused by the "population bottleneck".
