Testosterone and carotenoids: an integrated view of trade-offs between immunity and sexual signalling

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Abstract

Allocation tradeoffs with the immune system can enforce honesty on sexual signals that act as indicators of individual quality. Such tradeoffs can be brought about by (1) the dual action of testosterone, which stimulates sexual signals but also suppresses immune functions, and/or (2) competition for carotenoids, which can be deposited as ornamental pigments or used as antioxidants in support of immune functions.
Original languageEnglish
Pages (from-to)427 - 430
Number of pages4
JournalBioEssays
Volume29
Issue number5
DOIs
Publication statusPublished - 2007
Externally publishedYes

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