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Migration00:53

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Migration is long-range, seasonal movement from one region or habitat to another. This common strategy, carried out by many different organisms around the world, is an adaptive response that typically corresponds to changes in an organism’s environment, like resource availability or climate. Migrations can involve huge groups of thousands of animals as well as single individuals traveling alone and can range from thousands of kilometers to just a few hundred meters.
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Mechanistic models are utilized in individual analysis using single-source data, but imperfections arise due to data collection errors, preventing perfect prediction of observed data. The mathematical equation involves known values (Xi), observed concentrations (Ci), measurement errors (εi), model parameters (ϕj), and the related function (ƒi) for i number of values. Different least-squares metrics quantify differences between predicted and observed values. The ordinary least...
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Author Spotlight: Understanding Disease Mechanisms Through Real-Time Analysis of T-Cell Migration
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A MODEL OF KIN-STRUCTURED MIGRATION.

Alan R Rogers1

  • 1Department of Anthropology, University of Pittsburgh, Pittsburgh, PA, 15260.

Evolution; International Journal of Organic Evolution
|June 2, 2017
PubMed
Summary
This summary is machine-generated.

Kin-structured migration, where relatives move together, significantly impacts genetic diversity. This phenomenon increases genetic variation between groups, especially in highly mobile populations like humans and lions.

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Area of Science:

  • Population Genetics
  • Evolutionary Biology
  • Behavioral Ecology

Background:

  • Individuals often migrate in groups composed of relatives, a behavior termed kin-structured migration.
  • Understanding the influence of migration patterns on genetic population structure is crucial in evolutionary studies.

Purpose of the Study:

  • To investigate the impact of kin-structured migration on genetic population structure.
  • To quantify the effect of kin-structured migration on genetic variance ratios.
  • To explore the conditions under which kin-structured migration is most influential.

Main Methods:

  • Theoretical modeling of genetic population structure under kin-structured migration.
  • Analysis of behavioral and genetic data from different species.
  • Comparison of genetic variance ratios in populations with varying mobility.

Main Results:

  • Kin-structured migration increases the ratio of between-group genetic variance to within-group genetic variance.
  • This increase can be estimated using behavioral or genetic data.
  • The effect is predicted to be most significant in highly mobile populations.

Conclusions:

  • Kin-structured migration plays a substantial role in shaping the genetic structure of mobile species.
  • Empirical data from humans and lions support the theoretical predictions.
  • The impact of kin-structured migration is less pronounced in less mobile species, such as pine voles.