Article
High-pitched notes during vocal contests signal genetic diversity in ocellated antbirds.
PloS one - 2 Dec 2009
Araya-Ajoy Yi-Men, Chaves-Campos Johel, Kalko Elisabeth K V, Dewoody J Andrew
Abstract excerpt
Animals use honest signals to assess the quality of competitors during aggressive interactions. Current theory predicts that honest signals should be costly to produce and thus reveal some aspects of the phenotypic or genetic quality of the sender. In songbirds, research indicates that biomechanical constraints make the production of some acoustic features costly. Furthermore, recent studies have found that vocal...
Topics
- Acoustics
- Analysis of Variance
- Animals
- Genetic Variation
- Pitch Discrimination
- Songbirds
- Sound Spectrography
- Tape Recording
- Vocalization, Animal