Article
Testosterone-mediated effects on fitness-related phenotypic traits and fitness.
The American naturalist - 1 Apr 2009
Mills Suzanne C, Grapputo Alessandro, Jokinen Ilmari, Koskela Esa, Mappes Tapio, Oksanen Tuula A, Poikonen Tanja
Abstract excerpt
The physiological and behavioral mechanisms underlying life-history trade-offs are a continued source of debate. Testosterone (T) is one physiological factor proposed to mediate the trade-off between reproduction and survival. We use phenotypic engineering and multiple laboratory and field fitness-related phenotypic traits to test the effects of elevated T between two bank vole Myodes glareolus groups: dominant...
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