Results 31 to 40 of about 3,031,778 (313)

Combining genetic and demographic monitoring better informs conservation of an endangered urban snake.

open access: yesPLoS ONE, 2020
Conversion and fragmentation of wildlife habitat often leads to smaller and isolated populations and can reduce a species' ability to disperse across the landscape.
Dustin A Wood   +5 more
doaj   +1 more source

Polygenic Adaptation in a Population of Finite Size

open access: yesEntropy, 2020
Polygenic adaptation in response to selection on quantitative traits has become an important topic in evolutionary biology. Here we review the recent literature on models of polygenic adaptation.
Wolfgang Stephan, Sona John
doaj   +1 more source

Genetic drift during the spread phase of a biological invasion

open access: yesMolecular Ecology, 2019
Recent theoretical and experimental models have revealed the role played by evolution during species spread, and in particular have questioned the influence of genetic drift at range edges.
Nadège Bélouard   +4 more
semanticscholar   +1 more source

Natural Selection and Genetic Drift: Neutral and adaptive genetic variability of hatchery versus wild populations in brown trout Salmo trutta

open access: yesFrontiers in Marine Science, 2015
Genetic drift and natural selection are two of the major forces shaping the genetic makeup of a population. Genetic drift reduces genetic variability due to the random loss of alleles during the transition from one generation to the next one. The smaller
Tamara Schenekar
doaj   +1 more source

Contrasting the effects of natural selection, genetic drift and gene flow on urban evolution in white clover (Trifolium repens)

open access: yesProceedings of the Royal Society B: Biological Sciences, 2018
Urbanization is a global phenomenon with profound effects on the ecology and evolution of organisms. We examined the relative roles of natural selection, genetic drift and gene flow in influencing the evolution of white clover (Trifolium repens), which ...
Marc T. J. Johnson   +3 more
semanticscholar   +1 more source

Shell color polymorphism in marine gastropods

open access: yesEvolutionary Applications, 2023
Marine gastropods are characterized by an incredible variation in shell color. In this review, we aim to introduce researchers to previous studies of shell color polymorphism in this group of animals, trying to provide an overview of the topic and ...
Juan Gefaell   +2 more
doaj   +1 more source

Sex chromosome turnovers and genetic drift: a simulation study

open access: yesJournal of Evolutionary Biology, 2018
The recent advances of new genomic technologies have enabled the identification and characterization of sex chromosomes in an increasing number of nonmodel species, revealing that many plants and animals undergo frequent sex chromosome turnovers.
P. Saunders   +2 more
semanticscholar   +1 more source

Genetic Distinctiveness but Low Diversity Characterizes Rear-Edge Thuja standishii (Gordon) Carr. (Cupressaceae) Populations in Southwest Japan

open access: yesDiversity, 2021
Rear-edge populations are of significant scientific interest because they can contain allelic variation not found in core-range populations. However, such populations can differ in their level of genetic diversity and divergence reflecting variation in ...
James R. P. Worth   +7 more
doaj   +1 more source

Genetic drift in genetic algorithm selection schemes [PDF]

open access: yesIEEE Transactions on Evolutionary Computation, 1999
A method for calculating genetic drift in terms of changing population fitness variance is presented. The method allows for an easy comparison of different selection schemes and exact analytical results are derived for traditional generational selection, steady-state selection with varying generation gap, a simple model of Eshelman's CHC algorithm ...
Rogers, A., Prügel-Bennett, A.
openaire   +2 more sources

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