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.
Bolnick
Daniel I
DI
Section of Integrative Biology, University of Texas at Austin, One University Station C0930, Austin, TX 78712, USA. danbolnick@mail.utexas.edu
D000483:Alleles; D000818:Animals; D005075:Biological Evolution; D004331:Drosophila melanogaster / Q000235:genetics*; D005824:Genetics, Behavioral; D005828:Genetics, Population