Ring species as bridges between microevolution and speciation

@article{Irwin2004RingSA,
  title={Ring species as bridges between microevolution and speciation},
  author={Darren E Irwin and Jessica H. Irwin and T Douglas Price},
  journal={Genetica},
  year={2004},
  volume={112-113},
  pages={223-243}
}
A demonstration of how small changes can lead to species-level differences is provided by ring species, in which two reproductively isolated forms are connected by a chain of intermediate populations. We review proposed cases of ring species and the insights they provide into speciation. Ring species have been viewed both as illustrations of the history of divergence of two species from their common ancestor and as demonstrations that speciation can occur in spite of gene flow between the… Expand
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  • Biology, Medicine
  • Molecular ecology
  • 2009
TLDR
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  • Molecular ecology
  • 2016
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Simulating the expansion of a population around a barrier to form a ring species, in which the two ends of the population are reproductively isolated despite ongoing gene flow around the ring, implies that simulations can be used to accurately describe empirical data for complex spatial–genetic traits of an individual species. Expand
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TLDR
This model simulates the evolution of ring species assuming that individuals become sexually isolated if the genetic distance between them is above a certain threshold, and incorporates two forms of dispersal limitation: exogenous geographic barriers that limit the population range and endogenous barriers that result in genetic structuring within the populationrange. Expand
Title: Evolution and Stability of Ring Species
Neutral models, in which genetic change arises through random variation without fitness differences, have proven remarkably successful in describing observed patterns of biodiversity, despite theExpand
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THE SPLITTING OF a single species into two or more is a difficult process to observe, because it can take a great deal of time. Evolutionary biologists have recognized that a solution to this problemExpand
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  • Biology, Medicine
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  • 2017
TLDR
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TLDR
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Wherefore and Whither the Ring Species?
TLDR
It is argued that ring species demonstrate the gradual nature of species formation, and thereby illustrate the model ofspecies formation originally put forth by Darwin, and that ringspecies status, while nicely accommodated by recognizing a single species, is independent of taxonomy. Expand
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