Sex-dependent foraging effort and vigilance in coal-crested finches, Charitospiza eucosma (Aves: Emberizidae) during the breeding season: evidence of female-biased predation?
Sexual dimorphism in birds is often attributed to sexual selection, but another interpretation suggests the evolution of this phenomenon by natural selection. Predation may be an important selective pressure, acting mainly on females. In this study, I tested the latter hypothesis on the coal-crested...
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| Format: | Article |
| Language: | English |
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Pensoft Publishers
2011-04-01
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| Series: | Zoologia (Curitiba) |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702011000200003 |