Positive effect of dietary lutein and cholesterol on the undirected song activity of an opportunistic breeder
Song is a sexually selected trait that is thought to be an honest signal of the health condition of an individual in many bird species. For species that breed opportunistically, the quantity of food may be a determinant of singing activity. However, it is not yet known whether the quality of food pl...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
PeerJ Inc.
2016-10-01
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| Series: | PeerJ |
| Subjects: | |
| Online Access: | https://peerj.com/articles/2512.pdf |