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- Challenge_hypothesis abstract "The challenge hypothesis outlines the dynamic relationship between testosterone and aggression in mating contexts. It proposes that testosterone promotes aggression when it would be beneficial for reproduction, such as mate guarding, or strategies designed to prevent the encroachment of intrasexual rivals. The challenge hypothesis predicts that seasonal patterns in testosterone levels are a function of mating system (monogamy versus polygyny), paternal care, and male-male aggression in seasonal breeders.The pattern between testosterone and aggression was first observed in seasonally breeding birds, where testosterone levels rise modestly with the onset of the breeding season to support basic reproductive functions. However, during periods of heightened male aggression, testosterone levels increase further to a maximum physiological level. This additional boost in testosterone appears to facilitate male-male aggression, particularly during territory formation and mate guarding, and is also characterized by a lack of paternal care. The challenge hypothesis has come to explain patterns of testosterone production as predictive of aggression across more than 60 species.".
- Challenge_hypothesis thumbnail Melospiza_melodia_01450t.JPG?width=300.
- Challenge_hypothesis wikiPageID "33457541".
- Challenge_hypothesis wikiPageRevisionID "604036882".
- Challenge_hypothesis hasPhotoCollection Challenge_hypothesis.
- Challenge_hypothesis subject Category:Aggression.
- Challenge_hypothesis subject Category:Animal_sexuality.
- Challenge_hypothesis subject Category:Testosterone.
- Challenge_hypothesis comment "The challenge hypothesis outlines the dynamic relationship between testosterone and aggression in mating contexts. It proposes that testosterone promotes aggression when it would be beneficial for reproduction, such as mate guarding, or strategies designed to prevent the encroachment of intrasexual rivals.".
- Challenge_hypothesis label "Challenge hypothesis".
- Challenge_hypothesis label "Hipótese do desafio".
- Challenge_hypothesis sameAs Hipótese_do_desafio.
- Challenge_hypothesis sameAs m.0hhq1dc.
- Challenge_hypothesis sameAs Q4301065.
- Challenge_hypothesis sameAs Q4301065.
- Challenge_hypothesis wasDerivedFrom Challenge_hypothesis?oldid=604036882.
- Challenge_hypothesis depiction Melospiza_melodia_01450t.JPG.
- Challenge_hypothesis isPrimaryTopicOf Challenge_hypothesis.
