Fitness Correlates of Song Repertoire Size in Free‐Living Song Sparrows (Melospiza melodia)

@article{Reid2005FitnessCO,
  title={Fitness Correlates of Song Repertoire Size in Free‐Living Song Sparrows (Melospiza melodia)},
  author={J. Reid and P. Arcese and Alice Cassidy and S. M. Hiebert and James N. M. Smith and P. Stoddard and A. Marr and L. Keller},
  journal={The American Naturalist},
  year={2005},
  volume={165},
  pages={299 - 310}
}
Models of sexual selection propose that exaggerated secondary sexual ornaments indicate a male’s own fitness and the fitness of his offspring. These hypotheses have rarely been thoroughly tested in free‐living individuals because overall fitness, as opposed to fitness components, is difficult to measure. We used 20 years of data from song sparrows (Melospiza melodia) inhabiting Mandarte Island, British Columbia, Canada, to test whether a male’s song repertoire size, a secondary sexual trait… Expand
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