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Seasonal dimorphism in the horny bills of sparrows
Bill size is often viewed as a species-specific adaptation for feeding, but it sometimes varies between sexes, suggesting that sexual selection or intersexual competition may also be important. Hypotheses to explain sexual dimorphism in avian bill size include divergence in feeding niche or thermore...
| Autores principales: | , , |
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| Formato: | Online Artículo Texto |
| Lenguaje: | English |
| Publicado: |
Blackwell Publishing Ltd
2013
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| Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3586648/ https://www.ncbi.nlm.nih.gov/pubmed/23467758 http://dx.doi.org/10.1002/ece3.474 |