title: Cyclic fitness variation and polymorphism: cycling selection for litter size in arctic foxes.
authors.forename: P W
authors.initials: PW
authors.lastname: Hedrick
mesh_terms: D000818:Animals; D005589:Foxes / Q000235:genetics* / Q000502:physiology; D008098:Litter Size / Q000235:genetics*; D011110:Polymorphism, Genetic; D012098:Reproduction / Q000235:genetics*; D012641:Selection, Genetic