Behavioural genetics: evolutionary fingerprint of the 'invisible hand'.
A recent study of the foraging gene in Drosophila illustrates a long-standing economic maxim that competition favors rare strategies. Two foraging alleles, rovers and sitters, each have higher fitness when rare--but only when competition is strong.
Section of Integrative Biology, University of Texas at Austin, One University Station C0930, Austin, TX 78712, USA. danbolnick@mail.utexas.edu
Daniel I
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Bolnick
D000483:Alleles; D000818:Animals; D005075:Biological Evolution; D004331:Drosophila melanogaster / Q000235:genetics*; D005824:Genetics, Behavioral; D005828:Genetics, Population