Negative frequency‐dependent selection maintains shell banding polymorphisms in two marine snails (Littorina fabalis and Littorina saxatilis)
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DOI: 10.1002/ece3.7489
Abstract: Abstract The presence of shell bands is common in gastropods. Both the marine snails Littorina fabalis and Lttorina saxatilis are polymorphic for this trait. Such polymorphism would be expected to be lost by the action… read more here.
Keywords: frequency; dependent selection; selection; frequency dependent ... See more keywords
Landscape determinants of genetic differentiation, inbreeding and genetic drift in the hazel dormouse (Muscardinus avellanarius)
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DOI: 10.1007/s10592-017-0999-6
Abstract: The dispersal process is crucial in determining the fate of populations over time, but habitat fragmentation limits or prevents it. Landscape genetic is an effective tool to assess the degree to which dispersal still occurs… read more here.
Keywords: landscape determinants; determinants genetic; landscape; genetic differentiation ... See more keywords
Multi-generational genetic consequences of reinforcement in a bird metapopulation
Sign Up to like & getrecommendations! Published in 2020 at "Conservation Genetics"
DOI: 10.1007/s10592-020-01273-7
Abstract: Translocation of conspecific individuals to reduce extinction risk of small, isolated populations and prevent genetic depletion is a powerful tool in conservation biology. An important question is how the translocated individuals influence the long-term genetic… read more here.
Keywords: multi generational; recipient population; translocated individuals; genetic drift ... See more keywords
Gene flow and genetic drift contribute to high genetic diversity with low phylogeographical structure in European hoopoes (Upupa epops).
Sign Up to like & getrecommendations! Published in 2017 at "Molecular phylogenetics and evolution"
DOI: 10.1016/j.ympev.2017.05.018
Abstract: The Hoopoe (Upupa epops epops) breeds widely in Eurasia and most populations migrate to Africa during the boreal winter. To date, data regarding its phylogeography in Europe are missing. In this study, we investigated the… read more here.
Keywords: upupa epops; flow genetic; structure; drift contribute ... See more keywords
The costs and benefits of dispersal in small populations
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DOI: 10.1098/rstb.2021.0011
Abstract: Dispersal has three major effects on adaptation. First, gene flow mixes alleles adapted to different environments, potentially hindering (swamping) adaptation. Second, it brings in other variants and inflates genetic variance: this aids adaptation to spatially… read more here.
Keywords: small populations; genetic drift; dispersal; adaptation ... See more keywords
Genetic Drift Shapes the Evolution of a Highly Dynamic Metapopulation
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DOI: 10.1101/2022.07.10.499462
Abstract: The dynamics of extinction and (re)colonization in habitat patches are common features of metapopulations, causing them to evolve differently than large, stable populations. The propagule model, which assumes genetic bottlenecks during colonization, posits that newly… read more here.
Keywords: large stable; diversity; metapopulation; genetic drift ... See more keywords
Genetic drift in range expansions is very sensitive to density dependence in dispersal and growth.
Sign Up to like & getrecommendations! Published in 2019 at "Ecology letters"
DOI: 10.1111/ele.13364
Abstract: Theory predicts rapid genetic drift during invasions, yet many expanding populations maintain high genetic diversity. We find that genetic drift is dramatically suppressed when dispersal rates increase with the population density because many more migrants… read more here.
Keywords: dependence; dispersal; density; density dependence ... See more keywords
Complex patterns shape immune genes diversity during invasion of common raccoon in Europe – Selection in action despite genetic drift
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DOI: 10.1111/eva.13517
Abstract: Rapid adaptation is common in invasive populations and is crucial to their long‐term success. The primary target of selection in the invasive species' new range is standing genetic variation. Therefore, genetic drift and natural selection… read more here.
Keywords: raccoon; immune genes; diversity; invasion ... See more keywords
Polyploidization as an opportunistic mutation: The role of unreduced gametes formation and genetic drift in polyploid establishment
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DOI: 10.1111/jeb.14055
Abstract: It is broadly assumed that polyploidy success reflects an increase in fitness associated with whole‐genome duplication (WGD), due to higher tolerance to stressful conditions. Nevertheless, WGD also arises with several costs in neo‐polyploid lineages, like… read more here.
Keywords: establishment; polyploid; drift; genetic drift ... See more keywords
Effects of multiple sources of genetic drift on pathogen variation within hosts
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DOI: 10.1371/journal.pbio.2004444
Abstract: Changes in pathogen genetic variation within hosts alter the severity and spread of infectious diseases, with important implications for clinical disease and public health. Genetic drift may play a strong role in shaping pathogen variation,… read more here.
Keywords: pathogen variation; drift; genetic drift; within hosts ... See more keywords
Is the sky the limit? On the expansion threshold of a species’ range
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DOI: 10.1371/journal.pbio.2005372
Abstract: More than 100 years after Grigg’s influential analysis of species’ borders, the causes of limits to species’ ranges still represent a puzzle that has never been understood with clarity. The topic has become especially important… read more here.
Keywords: species range; genetic drift; expansion threshold; expansion ... See more keywords