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Summary

Description

An experiment demonstrating allopatric speciation in the fruit fly (Drosophila pseudoobscura) conducted by Diane Dodd. A single population of flies was divided into two, with one of the populations fed with starch-based food and the other with maltose-based food. After the populations had diverged over many generations, the groups were again mixed; it was observed that the flies continued to prefer mating with others from the same original population. Edited in Inkscape by User:Fastfission based on versions by User:BenB4 (Image:Speciation experiment.svg) from Ilmari Karonen's Image:Drosophila speciation.svg, based on http://evolution.berkeley.edu/evolibrary/images/evo/drosophila_experiment.gif from http://evolution.berkeley.edu/evolibrary/article/0_0_0/evo_45

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Drosophila pseudoobscura

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Date/TimeThumbnailDimensionsUserComment
current06:34, 3 November 2012Thumbnail for version as of 06:34, 3 November 2012600 × 235 (237 KB)QqnomeUnlike the previous version, "eight or more generations pass" is not found in the original paper: Dodd, D.M.B. (1989) "Reproductive isolation as a consequence of adaptive divergence in Drosophila pseudoobscura." Evolution 43:1308–1311. Dodd's paper s...

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