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Drosophila speciation

Reproductive isolation mechanisms can be a consequence of allopatric speciation. A population of Drosophila was divided into sub populations that were selected to adapt to different food types. After a number of generations the two sub populations were mixed again. It was observed that the subsequent matings occurred between individuals belonging to the same adapted group[1].

Biological or physiographic features that split populations into widely spread and eventually discrete entities; may lead to new races, then into speciation[2].

References

  1. ^ Dodd, D.M.B. (1989) "Reproductive isolation as a consequence of adaptive divergence in Drosophila pseudoobscura." Evolution 43:1308–1311. [1]
  2. ^ Simpson & Day (1999). A Field Guide to the Birds of Australia, 6th Edition. Penguin. ISBN 0-691-04995-5. 
Anatomy of an amiotic egg This article is part of Project Glossary, a All Birds project that aims to write comprehensive articles on each term related to animals.


Dino bird h This article is part of Project Evolution, a All Birds project that aims to write comprehensive articles on each evolutionary term related to birds.
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