title: Rare male advantage and sex ratio.
abstract: Relative success of mutant white and wild-type CS Drosophila melanogaster males is frequency-dependent, if sex ratio is 1:1. If the number of females is constant, this success depends on the ratio between the mutant and wild-type males. The sex ratio changes strongly affect the male mating activity of both genotypes. Emphasis is placed on the general interest of the Ayala equation and the Wattiaux-Lichtenberger equation in frequency-dependence and sex ratio dependence analysis.
authors.affiliation: Département de Génétique et Physiologie Cellulaire, Faculté de Médecine, Facultés Universitaires N.-D. de la Paix, Namur, Belgique.
authors.forename: J
authors.initials: J
authors.lastname: Lechien
authors.forename: C
authors.initials: C
authors.lastname: Dernoncourt-Sterpin
authors.forename: A
authors.initials: A
authors.lastname: Elens
mesh_terms: D000818:Animals; D003433:Crosses, Genetic; D004331:Drosophila melanogaster / Q000235:genetics* / Q000502:physiology; D005260:Female; D005838:Genotype; D008297:Male; D009154:Mutation; D012044:Regression Analysis; D012744:Sex Ratio