Data from: Trade-off between carotenoid-based sexual ornamentation and sperm resistance to oxidative challenge

Oldřich Tomášek, Jana Albrechtová, Martina Němcová, Pavlína Opatová & Tomáš Albrecht
It has been hypothesized that carotenoid-based sexual ornamentation signals male fertility and sperm competitive ability as both ornamentation and sperm traits may be co-affected by oxidative stress, resulting in positive covariation (the ‘redox-based phenotype-linked fertility hypothesis’; redox-based PLFH). On the other hand, the ‘sperm competition theory’ (SCT) predicts a trade-off between precopulatory and postcopulatory traits. Here, we manipulate oxidative status (using diquat dibromide) and carotenoid availability in adult zebra finch (Taeniopygia guttata) males in order...
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