Population Genetic Models of Source-Sink Metapopulations

Theoretical Population Biology
Oscar E Gaggiotti

Abstract

The present study investigates the effect that different patterns of migration have on the genetic structure of source-sink metapopulations specifically modelling the dynamics of local populations. The model assumes a metapopulation consisting of a single source and s different sink populations and considers the expected number of nucleotide differences between two genes drawn at random from the source-sink metapopulation. The results show that a collection of interconnected sinks can maintain a substantial fraction of the genetic variability observed in the source population, particularly where migration from the source is continuous over time. The degree of genetic differentiation among the sinks might be large, especially if migration from the source is stochastic. Genetic differentiation is small when extinctions are frequent (because most of the sink populations are composed of recent migrants from the source) or extremely rare (because of the increased effect of migration among sinks), being maximized when the frequency of extinctions is between these two extremes.

Citations

Aug 11, 2000·Evolution; International Journal of Organic Evolution·K P JohnsonJ L Cherry
Feb 26, 2008·Infection, Genetics and Evolution : Journal of Molecular Epidemiology and Evolutionary Genetics in Infectious Diseases·Patrik JohanssonFredrik Elgh
Jan 29, 2008·Theoretical Population Biology·Tuomas Nurmi, Kalle Parvinen
Oct 30, 2007·Theoretical Population Biology·Oskar Hallatschek, David R Nelson
Jan 13, 2006·Journal of Evolutionary Biology·M Alleaume-BenhariraO Ronce
Oct 10, 2009·PloS One·Sean H Rice, Anthony Papadopoulos
Jul 22, 2016·Proceedings. Biological Sciences·Hope M DraheimKim T Scribner
Jan 26, 2020·Ecology Letters·Nathan D Van Schmidt, Steven R Beissinger
Feb 9, 2020·Proceedings of the National Academy of Sciences of the United States of America·Annabel L SmithYvonne M Buckley
Dec 6, 2019·Frontiers in Genetics·Agusto Luzuriaga-NeiraAlbano Beja-Pereira
Aug 1, 1999·Evolution; International Journal of Organic Evolution·Didier JollivetBenjamin Planque
Jul 2, 1999·Genetics·I Kaj, M Lascoux

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