Article
Sneaker Males Affect Fighter Male Body Size and Sexual Size Dimorphism in Salmon.
The American naturalist - 1 Aug 2016
Weir Laura K, Kindsvater Holly K, Young Kyle A, Reynolds John D
Abstract excerpt
Large male body size is typically favored by directional sexual selection through competition for mates. However, alternative male life-history phenotypes, such as "sneakers," should decrease the strength of sexual selection acting on body size of large "fighter" males. We tested this prediction with salmon species; in southern populations, where sneakers are common, fighter males should be smaller than in...
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