Phrases with «population bottlenecks»

The phrase "population bottlenecks" means when a large population of organisms is suddenly reduced to a very small number. It's like when a bottleneck restricts the flow of a liquid, the population bottleneck limits the number of individuals in a species. This can happen due to disasters, diseases, or other events that cause a big decline in population size. Full definition

population bottlenecks

Sentences with «population bottlenecks»

Previous analyses using mtDNA RFLP's identified more mtDNA haplotypes than detected by our whole mitogenome (WMG) sequencing analysis on San Miguel (2 RFLP: 1 WMG genotypes) and Santa Catalina (3 RFLP: 2 WMG genotypes), suggesting a possible loss of mtDNA diversity on these islands as a result of population bottlenecks over the past 25 years [15]. (journals.plos.org)
This massive environmental change is believed to have created population bottlenecks in the various species that existed at the time; this in turn accelerated differentiation of the isolated human populations, eventually leading to the extinction of all the other human species except for the branch that became modern humans. (sciencedaily.com)
The invariance likely results from either a recent selective sweep, a recent origin for modern Homo sapiens, recurrent male population bottlenecks, or historically small effective male population sizes. (science.sciencemag.org)
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Phrases with «population bottlenecks»

Sentences with «population bottlenecks»

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