Recongition and sexual selection in Drosophila: classification, quantification, and identification
Leonard, J.E.; Ehrman, L.
Science 193(4254): 693-695
1976
ISSN/ISBN: 0036-8075 PMID: 948745 Document Number: 109941
D. pseudoobscura females show a positive bias toward mating with males whose proportion in the population is low. They can perform this discrimination even when 3 strains of males are present. The olfactory recognition required for this discrimination entails a hierarchically ordered recognition system and a natural unit of olfactory strength.