Extinction and Recolonization: Their Effects on the Genetic Differentiation of Local Populations

Wade, Michael J.; McCauley, David E.

doi:10.2307/2408915

Cited by 433 publications

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“…Founder events and genetic bottlenecks resulting from distributional shifts affect the sustainability and persistence of populations by causing a reduction in genetic variation (Falconer 1981, Slatkin 1987. Moreover, without adequate connectivity, genetic structure can arise quickly at the periphery of the expanding population, where the number of individuals leading the expansion can be quite low (Wade and McCauley 1988, Ibrahim et al 1996, Austerlitz et al 1997, Le Corre and Kremer 1998.…”

Section: Introductionmentioning

confidence: 99%

How connectivity shapes genetic structure during range expansion: Insights from the Virginia's Warbler

Bubac

Spellman

2016

The Auk

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Section: Introductionmentioning

confidence: 99%

How connectivity shapes genetic structure during range expansion: Insights from the Virginia's Warbler

Bubac

Spellman

2016

The Auk

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“…Even the simplest models that assume demes of similar size and extinction probability include several parameters that all have an important effect on the effective size and genetic diversity, including the migration and extinction rates, the number of demes and their sizes, the number of founding individuals, and the extent to which they come from the same source deme or a mix of different demes PANNELL and CHARLESWORTH 2000a;WADE and MCCAULEY 1988;. Because different processes can affect particular summary statistics in similar ways, our challenge is to devise sampling and analysis that allow us to distinguish them, e.g., to move beyond the use of single statistics that only summarise part of the pattern.…”

Section: Effective Population Sizes Genetic Drift and Migrationmentioning

confidence: 99%

“…Such conditions are probably rarely met by real species. In a metapopulation, for example, rapid population turnover is predicted to increase genetic differentiation among demes (WADE and MCCAULEY 1988). Population turnover can be incorporated into models, but one quickly faces the problem of over-parameterisation of models that are biologically plausible, even though adequate sampling can overcome some of the difficulties (see STÄDLER et al 2009).…”

Section: Population Differentiation and How Best To Measure Itmentioning

confidence: 99%

“…A contrast to this equilibrium model is an idealized metapopulation (WADE and MCCAULEY 1988;, where demes experience extinction and recolonization. In metapopulations, the level of population differentiation will be described by where e is the rate of population extinction, k is the number of founding propagules, and is the number of sources from which the k founding propagules .…”

Section: Introductionmentioning

confidence: 99%

“…FST diminishes as populations age, but at a rate that depends how isolated the population is. These spatial and temporal correlates of population structure give insight into how migration, founder effect and within-deme genetic contrast to this equilibrium model is a metapopulation (WADE and MCCAULEY 1988;, where demes experience extinction and recolonization. Under this non-equilibrium model, founder effects can be a powerful structuring mechanism , and population differentiation can occur despite high levels of gene flow that acts to minimize genetic differentiation as populations age.…”

Section: Introductionmentioning

confidence: 99%

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Metapopulation Ecology

Nouhuys¹

2009

Encyclopedia of Life Sciences

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A metapopulation is a spatially structured population that persists over time as a set of local populations in balance between local extinction and colonization. Starting in 1969, and accelerating since the early 1990s, mathematical models of metapopulations have shown the importance of landscape connectivity and dispersal for persistence of a species or of interacting species. Some metapopulation models have been fit to empirical data. Although pure metapopulations may be rare, there are many empirical studies in which metapopulation processes, primarily local colonization and extinction, have been useful in explaining dynamics of natural and experimental systems. Metapopulation ecology is used in conservation biology and in population genetics where it influences genetic structure, the rate and trajectory of evolution and even what traits are under selection. Finally, communities of species that are distributed in a landscape potentially form metacommunity, which is a concept that shares important characteristics with metapopulations.

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Extinction and Recolonization: Their Effects on the Genetic Differentiation of Local Populations

Cited by 433 publications

References 0 publications

How connectivity shapes genetic structure during range expansion: Insights from the Virginia's Warbler

How connectivity shapes genetic structure during range expansion: Insights from the Virginia's Warbler

Genetic analysis of metapopulation processes in Silene latifolia

Metapopulation Ecology

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