The speciation revolution

  title={The speciation revolution},
  author={James Mallet},
  journal={Journal of Evolutionary Biology},
  • J. Mallet
  • Published 1 November 2001
  • Biology
  • Journal of Evolutionary Biology
I predict the years 1990±2010 will be seen as a revolution in the study of speciation. One person's punctuated equilibrium is another's gradual change, and the current revolution is in any case paltry compared with Darwin's own. Even so, many previously accepted beliefs about speciation are now doubted, and features of a classic scienti®c revolution are evident. To see just how much has changed, consider what experts were saying until recently. Coyne (1994), for example, listed four major… 

Mayr's view of Darwin: was Darwin wrong about speciation?

E Ernst Mayr's arguments were more convincing than Huxley's, and this caused a delay in the acceptance of a more balanced view of speciation for many decades, so it is only now, with new molecular evidence, that the authors are beginning to appreciate more fully the expected Darwinian intermediates between coexisting species.

Towards Solving Darwin's “mystery”: Speciation and Radiation in Lacustrine and Riverine Freshwater Gastropods*

Speciation is discussed for limnic Cerithioidean gastropods and the role of natural selection, adaptation and ecology that have lead to the array of radiations described recently for several taxa and cases is discussed.

Why was Darwin’s view of species rejected by twentieth century biologists?

In the 150th anniversary of The Origin of Species, Darwinian views on species appear to be returning to more Darwinianviews on species, and to a fuller appreciation of what Darwin meant.

1 . 1 A Shift in Focus

The traditional “standard model” of speciation rests on the assumption of geographic isolation, but the distinction between allopatric speciation (occurring under geographic isolation) and sympatricSpeciation (without geographic isolation), which has taken center stage in the speciation debate.

A Historical Taxonomy of Origin of Species Problems and Its Relevance to the Historiography of Evolutionary Thought

A consequent problem-centric look at that (pre)history through the lens of various origin of species problems certainly yields intriguing results, including and particularly for the genesis of the Wallace–Darwin theory of evolution through natural selection.

Effects of Quaternary Climatic Change on Speciation in Mammals

  • A. Barnosky
  • Environmental Science, Geography
    Journal of Mammalian Evolution
  • 2005
Empirical data suggests that speciation rates were neither appreciably elevated for Quaternary mammals, nor strongly correlated with glacial–interglacial transitions, which suggests that if climatic change does influence Speciation rates in mammals, it does so over time scales longer than a typicalglacial– interglacial cycle.

Sympatric Differentiation and Speciation: Insights from Drosophila Studies

The results suggest that populations inhabiting opposite slopes exemplify ongoing divergence taking place regardless of high migration, and a precise image-bearing expression for the sympatric model: “The Ugly Duckling” is found.


Due to conceptual advances based on the theory of adaptive dynamics, adaptive speciation has emerged as a theoretically plausible evolutionary process that can occur in many different ecological settings.

Gene Flow Happens

  • A. Yoder
  • Biology
    Evolutionary anthropology
  • 2014
Debate over what is a species was already considered old hat when Darwin wrote his seminal abstract (as he called it) more than 150 years ago.1 Endless papers, workshops, and symposia have been



Dualism and conflicts in understanding speciation.

  • M. Schilthuizen
  • Biology
    BioEssays : news and reviews in molecular, cellular and developmental biology
  • 2000
New data, mainly from field ecology, molecular population genetics, laboratory studies with Drosophila and computer analysis, all suggest that the isolation theory may no longer be the most desirable vantage point from which to explore speciation.


  • J. Coyne
  • Biology
    Evolution; international journal of organic evolution
  • 1994
Three of these-the emphasis on discontinuous organic forms, the encapsulation of such discontinuities in the "biological species concept," and the theory of allopatric speciation-are milestones of evolutionary biology that constitute the modem dogma of speciation.

Genetic Revolutions, Founder Effects, and Speciation

It is argued that, although founder effects may cause speciation under sufficiently stringent conditions, they are only one extreme of a continuous range of possibilities, and divergence may be driven in a variety of ways, without the need for drastic external changes.

Modes of Animal Speciation

Speciation is ultimately an adaptive process that involves establishment of intrin­ sic barriers to gene flow between closely related populations by development of reproductive isolating mechanisms.

A species definition for the modern synthesis.

  • J. Mallet
  • Environmental Science
    Trends in ecology & evolution
  • 1995

The genic view of the process of speciation

Significantly, the genetic architecture underlying RI, the patterns of species hybridization and the molecular signature of speciation genes all appear to support the view that RI is one of the manifestations of differential adaptation, as Darwin (1859) suggested.

On the Origin of Species by Means of Natural Selection: Or, The Preservation of Favoured Races in the Struggle for Life

Charles Darwin's seminal formulation of the theory of evolution, "On the Origin of Species" continues to be as controversial today as when it was first published. This "Penguin Classics" edition

Speciation: Darwin revisited

Theory and speciation.

On the origin of species by sympatric speciation

This work uses multilocus genetics to describe sexual reproduction in an individual-based model and considers the evolution of assortative mating, which leads to reproductive isolation between ecologically diverging subpopulations and conforms well with mounting empirical evidence for the sympatric origin of many species.