CHANGES IN MATING BEHAVIOR PRODUCED BY SELECTION FOR ETHOLOGICAL ISOLATION BETWEEN EBONY AND VESTIGIAL MUTANTS OF DROSOPHILA MELANOGASTER

@article{Crossley1974CHANGESIM,
  title={CHANGES IN MATING BEHAVIOR PRODUCED BY SELECTION FOR ETHOLOGICAL ISOLATION BETWEEN EBONY AND VESTIGIAL MUTANTS OF DROSOPHILA MELANOGASTER},
  author={Stella A. Crossley},
  journal={Evolution},
  year={1974},
  volume={28}
}
  • S. Crossley
  • Published 1 December 1974
  • Biology, Psychology
  • Evolution
Species that do not interbreed because of behavioral differences are described as ethologically or sexually isolated (Dobzhansky, 1951). Ethological isolating mechanisms are well known in animals (Mayr, 1963), but knowledge of the way in which they have evolved is fragmentary. Two theories have been advanced for their origin: Muller (1939) suggested that they arise as by-products of genetic divergence in allopatric populations; Dobzhansky (1940) argued that they are developed and strengthened… 

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  • H. R. Koepfer
  • Biology
    Evolution; international journal of organic evolution
  • 1987
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Speciation by Natural and Sexual Selection: Models and Experiments

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Comparative studies of courtship behaviour in sympatric sibling species of Zaprionus (Diptera - Drosophilidae)

  • R. Lee
  • Biology, Environmental Science
  • 1983
The main objects of the project were to study the mechanisms by which members of these two species identify the sex of other individuals (sexual dimorphism being slight); and the isolating mechanisms operating between the two species.

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Over the last two decades a major resurgence of work on sexual selection has occurred and Evolutionists have reexamined Darwin's ideas and are now much more impressed by their cogency.

The failure to obtain sexual isolation by artificial selection

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A test of speciation via sexual selection on female preferences

It is suggested that the inability to achieve true reproductive isolation among some lines could have been due to low evolutionary potential in the ‘shape’ of courtship, as defined by the second principal component.
...

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An attempt is made to weaken as well as to strengthen the ethological isolation between two closely related species; and progress in selection is measured in the two sexes of each species separately, so that differential effects become apparent.

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One of the most imiportant problems in the study of speciation has been that of the origin of reproductive isolating mechanisms, for it is by the building up of intrinsic barriers which prevent gene

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