Fitness Correlates of Song Repertoire Size in Free-LivingSong Sparrows (Melospiza melodia)

Song Sparrow (Melospiza melodia) Science Article 8

abstract

Models of sexual selection propose that exaggerated secondarysexual ornaments indicate a male’s own fitness and the fitnessof his offspring. These hypotheses have rarely been thoroughly testedin free-living individuals because overall fitness

Jane M. Reid et al, Am. Nat. 2005. Vol. 165, 2005

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