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Md Moshiur Rahman, Jennifer L. Kelley and Jonathan P. Evans Condition-dependent expression of pre- and postcopulatory sexual traits in guppies Ecology and Evolution 3

Article first published online: 5 JUN 2013 | DOI: 10.1002/ece3.632

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We show that a range of traits targeted by pre- and postcopulatory sexual selection exhibit condition dependence, as revealed through a reduction in trait values under dietary stress (quantity of food). However, we failed to detect any additional or interactive effects of modifying diet quality (carotenoid levels), despite the well documented theory that ornamental and ejaculate traits can reflect carotenoid intake.

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