An experimental test to separate the effects of male age and mating history on female mate choice

Upama Aich, Timothee Bonnet, Rebecca Bathgate & Michael Jennions
Should females prefer older males as mates? Male survival to old age might indicate the presence of fitness-enhancing genes that increase offspring fitness. However, many correlational studies show that mating with older males can lower female fecundity, and even reduce offspring fitness due to epigenetic or germline mutation effects. One problem in quantifying female choice based on male age is that age is usually confounded with mating history. This begs a question: Do females choose...
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