Results 11 to 20 of about 2,030 (202)

Nb_HetEx: a program to estimate the effective number of breeders. [PDF]

open access: yesJournal of Heredity, 2008
The program "Nb_HetEx" estimates the effective number of breeders (N(b)) that produced the sampled progeny based on genotype counts contained in that sample. When the number of breeders is very small, there is an excess of heterozygotes in their progeny: the smaller the number of breeders, the larger the heterozygote excess.
O. L. Zhdanova, A. Pudovkin
semanticscholar   +3 more sources

AgeStrucNb: Software for Simulating and Detecting Changes in the Effective Number of Breeders (Nb) [PDF]

open access: yesJournal of Heredity, 2020
Estimation of the effective number of breeders per reproductive event (Nb) using single sample DNA-marker-based methods has rapidly grown in recent years.
T. Antao   +6 more
semanticscholar   +2 more sources

Genetic substructure and admixture as important factors in linkage disequilibrium‐based estimation of effective number of breeders in recovering wildlife populations [PDF]

open access: yesEcology and Evolution, 2017
The number of effective breeders (N b) and effective population size (N e) are population parameters reflective of evolutionary potential, susceptibility to stochasticity, and viability. We have estimated these parameters using the linkage disequilibrium‐
A. Kopatz   +5 more
semanticscholar   +6 more sources

Effective number of breeders and maintenance of genetic diversity in the captive bearded vulture population [PDF]

open access: yesHeredity, 2003
We combined pedigree data with data derived from 14 microsatellite loci to investigate genetic diversity and its maintenance in the captive source population for the reintroduction of the bearded vulture into the Alps. We found the captive population to be genetically more variable than the largest natural population in Europe, both in terms of mean ...
B. Gautschi   +3 more
semanticscholar   +4 more sources

Estimation of effective population size and effective number of breeders in an abundant and heavily exploited marine teleost

open access: yesbioRxiv, 2023
Abstract Obtaining reliable estimates of the effective number of breeders N ( b ) and generational effective population size ( N e ) for fishery-important species is challenging because they ...
Andrea Bertram   +7 more
semanticscholar   +2 more sources

Alternative life‐history strategy contributions to effective population size in a naturally spawning salmon population

open access: yesEvolutionary Applications, 2023
Alternative life‐history tactics are predicted to affect within‐population genetic processes but have received little attention. For example, the impact of precocious males on effective population size (Ne) has not been quantified directly in Pacific ...
Erika King   +5 more
doaj   +2 more sources

Detecting population declines via monitoring the effective number of breeders (Nb)

open access: yesMolecular Ecology Resources, 2020
Estimating the effective population size and effective number of breeders per year (Nb) can facilitate early detection of population declines. We used computer simulations to quantify bias and precision of the one‐sample LDNe estimator of Nb in age ...
G. Luikart   +8 more
semanticscholar   +3 more sources

A theoretical framework linking the effective number of breeders to demographic stochasticity in iteroparous species

open access: yesGENETICS
The effective number of breeders (Nb) is widely used as a genetic summary statistic, yet its role in shaping demographic variability has remained underexplored.
Tetsuya Akita
semanticscholar   +3 more sources

Estimating the Effective Number of Breeders From Heterozygote Excess in Progeny [PDF]

open access: yesGenetics, 1999
Abstract The heterozygote-excess method is a recently published method for estimating the effective population size (Ne). It is based on the following principle: When the effective number of breeders (Neb) in a population is small, the allele frequencies will (by chance) be different in males and females, which causes an excess of ...
Luikart G   +2 more
exaly   +3 more sources

Estimating Effective Number of Breeders Under the Heterozygote‐Excess Equilibrium

open access: yesMolecular Ecology Resources
Estimating the effective number of breeders per reproductive cycle or cohort ( Nb$$ {N}_b $$ ) can contribute to understanding the viability of wild populations. However, previous Nb$$ {N}_b $$ estimators based on heterozygote‐excess assume that parental
Bing Yang   +11 more
semanticscholar   +4 more sources

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