Ad
related to: effective population size definition biology- Best Books of the Year
Amazon editors' best books so far.
Best books so far.
- Textbooks
Save money on new & used textbooks.
Shop by category.
- Best sellers and more
Explore best sellers.
Curated picks & editorial reviews.
- Amazon Editors' Picks
Handpicked reads from Amazon Books.
Curated editors’ picks.
- Print book best sellers
Most popular books based on sales.
Updated frequently.
- Best Books of 2024
Amazon Editors’ Best Books of 2024.
Discover your next favorite read.
- Best Books of the Year
Search results
Results From The WOW.Com Content Network
The effective population size (N e) is the size of an idealised population that would experience the same rate of genetic drift as the real population. [1] Idealised populations are those following simple one- locus models that comply with assumptions of the neutral theory of molecular evolution .
Population size is directly associated with amount of genetic drift, and is the underlying cause of effects like population bottlenecks and the founder effect. [1] Genetic drift is the major source of decrease of genetic diversity within populations which drives fixation and can potentially lead to speciation events.
where u is the mutation rate, and N e is the effective population size. The effective number of alleles n maintained in a population is defined as the inverse of the homozygosity, that is = = + which is a lower bound for the actual number of alleles in the population. If the effective population is large, then a large number of alleles can be ...
The Allee effect is a phenomenon in biology characterized by a correlation between population size or density and the mean individual fitness (often measured as per capita population growth rate) of a population or species.
Average time to fixation N e is the effective population size, the number of individuals in an idealised population under genetic drift required to produce an equivalent amount of genetic diversity. Usually the population statistic used to define effective population size is heterozygosity, but others can be used. [7]
In conservation biology, minimum viable population (MVP) size helps to determine the effective population size when a population is at risk for extinction. [5] [6] The effects of a population bottleneck often depend on the number of individuals remaining after the bottleneck and how that compares to the minimum viable population size.
To calculate genetic diversity the authors multiply long term effective population size of the females by two, assuming sex ratio 1:1, and then multiply by mitochondrial genes substitution rate, per generation. Making several assumptions according to the sex ratio and number of juveniles, they were able to calculate that in contrast to ...
This relationship between the effective population size and selection efficiency was evidenced by genomic studies of species including chimpanzee and human [45] and domesticated species. [46] In small populations (e.g., a population bottleneck during a speciation event), slightly deleterious