Within-song ( r = 0.89, F 40,164 = 15.3, P < 0.0001) and between-song recording repeatability ( r = 0.88, F 13,112 = 15.1, P < 0.0001) are highly significant.
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Do females invest more into eggs when males sing more attractively? Postmating sexual selection strategies in a monogamous reed passerine.
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