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An Evaluation of an Experimental Model for Sympatric Speciation
(c) Strength of chemical vs egg attractants
(c) Strength of chemical vs egg attractants
This test was conducted as a corollary to (b). After Generation 4, flies from the amyl alcohol selected strain were presented with a choice of two egg laying phials, one containing egg laying medium and amyl alcohol, the other egg laying medium and eggs. Similarly the ammonium carbonate selected flies were presented with two choices, either ammonium carbonate on egg laying medium or egg laying medium and eggs.
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Fig. 1 Total and Correct Numbers of Eggs Laid Daily by Each Strain.
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Fig. 2a. Daily Percentage of Eggs Laid Correctly in Each Cage.
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Fig. 2b. Average Percentage of Eggs Correctly. Laid in Each Cage.