In population genetics, the concept of effective population sizeNe was introduced by the United States geneticist Sewall Wright, who wrote two landmark papers on it ....
Population genetics is the study of the allele frequency distribution and change under the influence of the four evolutionary processes: natural selection, genetic drift, mutation and gene flow.... an idealised population, also sometimes called a Fisher-Wright population after R.A. Fisher
Ronald Fisher
Sir Ronald Aylmer Fisher, Fellow of the Royal Society was an England statistician, evolutionary biologist, and genetics. He was described by Anders Hald as "a genius who almost single-handedly created the foundations for modern statistical science" and Richard Dawkins described him as "the greatest of Charles Darwin successors".... and Sewall Wright
Sewall Wright
Sewall Green Wright was an American geneticist known for his influential work on evolutionary theory and also for his work on path analysis . With R.... , is a population
Population
File:Population density.pngIn biology, a population is the collection of inter-breeding organisms of a particular species; in sociology, a collection of human beings.... whose members can mate
Sexual intercourse
Sexual intercourse, also known as copulation or coitus, commonly refers to the act in which the Penis enters the Vagina. The two entities may be of opposite sexes or not, or they may be hermaphrodite, as is the case with snails.... and reproduce with any other member of the other gender, has a sex ratio
Sex ratio
Sex ratio is the ratio of males to females in a population. The primary sex ratio is the ratio at the time of conception, secondary sex ratio is the ratio at time of birth, and tertiary sex ratio is the ratio of mature organisms.... of 1 and no overlapping generations. As such, each individual has the same chance to contribute its own genetic material to the next generation (no selection
Selection
In the context of evolution, certain traits or alleles of a species may be subject to selection depending on the Pragmatics the user has with the word.... ).
Deviation from the idealised population results in the effective population size being smaller than the total population size.
