Centrifugal Speciation

@article{Brown1957CentrifugalS,
  title={Centrifugal Speciation},
  author={William L. Brown},
  journal={The Quarterly Review of Biology},
  year={1957},
  volume={32},
  pages={247 - 277}
}
  • W. Brown
  • Published 1 September 1957
  • The Quarterly Review of Biology
INTRODUCTION M D ODERN population systematics rests on the assumption that species arise when a parent population is divided into geographical fractions, each isolated from the next by physiographic (or biotic) barriers. During such geographic isolation, the daughter populations can accumulate genetic differences, some or all of which reduce their chances of interbreeding freely and effectively. As soon as these differences accumulate to the point where they constitute a reproductive barrier… 
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It is demonstrated that rapid speciation on the time–scale of hundreds of generations is plausible without the need for extreme founder events, complete geographic isolation, the existence of distinct adaptive peaks or selection for local adaptation, and the plausibility of speciation is enhanced by population subdivision.
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TLDR
Justification for the evolutionary study of marginal populations can be provided from at least five points of view: (1) peripheral populations are postulated to play a central role in speciation phenomena but in very different ways; (2) they are attributed a major role in 'bursts' of adaptive radiation; and (3) comparison with central populations yields information on selection processes.
DYNAMICS OF SPECIATION AND DIVERSIFICATION IN A METAPOPULATION
We develop a simple framework for modeling speciation and diversification as a continuous process of accumulation of genetic (or morphological) differences accompanied by species and subpopulation
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References

SHOWING 1-10 OF 63 REFERENCES
THE WILLISTONI GROUP OF SIBLING SPECIES OF DROSOPHILA
TLDR
The present article reports the results of a study of a cluster of four sibling species native to tropical America, that previously have been confused under the name of Drosophila zvillistoni Sturtevant.
THE MECHANISM OF EVOLUTION IN THE GENUS CLARKIA
TLDR
A 6-year study of all of the North American species both in their natural habitats and in the experimental garden to examine the morphological, cytogenetical, and ecological relationships within the genus, and to suggest means by which the observed pattern of differentiation and divergence has evolved.
GENETICS OF NATURAL POPULATIONS. XXV. GENETIC CHANGES IN POPULATIONS OF DROSOPHILA ***PSEUDOOBSCURA AND DROSOPHILA PERSIMILIS IN SOME LOCALITIES IN CALIFORNIA
TLDR
It is needless to labor the point that the study of even slight microevolutionary changes taking place under natural conditions in wild species is fraught with interesting possibilities for an evolutionist.
BREEDING SITES OF DROSOPHILA PSEUDOOBSCURA AND DROSOPHILA PERSIMILIS IN THE TRANSITION ZONE OF THE SIERRA NEVADA
TLDR
Carson and Stalker (1950, 1951) have recently found that Drosophila robusta, a typical wild inhabitant of the deciduous forest of the eastern United States, breeds abundantly on yeastand bacteria-infected sap exudations, or "slime fluxes" of elms and twelve other species "of deciduously trees".
Cryptic Subspeciation in Drosophila Belonging to the Subgenus Sophophora
A new subspecies, Drosophila tropicalis cubana, belonging to the siblings of the willistoni group of the subgenus Sophophora and distributed throughout the Greater Antilles is described and compared
ORIGIN OF THE VARIATION IN THE IMPORTED FIRE ANT
TLDR
It is now clear that forms morphologically identical with the "light" and "intermediate" phases of the Gulf States population occur commonly in the zone of intergradation between Solenopsis s.
The Geographical Distribution of Cold-Blooded Vertebrates
  • P. Darlington
  • Biology, Medicine
    The Quarterly Review of Biology
  • 1948
TLDR
The present paper is a survey of the geographical distribution of all existing cold-blooded vertebrates except marine fishes; that is, of fresh-water fishes, amphibians, and reptiles.
An outline of the dynamics of animal populations.
TLDR
The characteristic of balance is sustained and effective compensatory reaction which maintains populations in being in spite of even violent changes in the environment, and which adjusts their densities in general conformity with prevailing conditions.
Modes of Selection
TLDR
It is concluded with Blum (1951) that evolution took the form at first of decreasing mutability and along with this may have occurred the evolution of stable genic association in cells, and mechanisms of exact duplication of the entire system by mitosis.
Studies on the Origin of Cultivated Plants
TLDR
The great increase in genetical research and the marked desire of many geneticists to link their studies with other aspects of biology is leading to renewed interest in the taxonomic and geographical history of the authors' common cultivated plants.
...
1
2
3
4
5
...