Coos, booms, and hoots: The evolution of closed‐mouth vocal behavior in birds

@article{Riede2016CoosBA,
  title={Coos, booms, and hoots: The evolution of closed‐mouth vocal behavior in birds},
  author={Tobias Riede and Chad M Eliason and Edward H. Miller and Franz Goller and Julia A. Clarke},
  journal={Evolution},
  year={2016},
  volume={70}
}
Most birds vocalize with an open beak, but vocalization with a closed beak into an inflating cavity occurs in territorial or courtship displays in disparate species throughout birds. Closed‐mouth vocalizations generate resonance conditions that favor low‐frequency sounds. By contrast, open‐mouth vocalizations cover a wider frequency range. Here we describe closed‐mouth vocalizations of birds from functional and morphological perspectives and assess the distribution of closed‐mouth vocalizations… Expand
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References

SHOWING 1-10 OF 158 REFERENCES
Vocal tract articulation revisited: the case of the monk parakeet
TLDR
X-ray cinematographic imaging of naturally vocalizing monk parakeets was used to assess which articulators are possibly involved in vocal tract filtering in this species, and strong positive correlations between beak opening and amplitude as well as changes in tongue height and amplitude in several types of vocalization were found. Expand
Acoustic exaggeration of size in birds via tracheal elongation: comparative and theoretical analyses
TLDR
It is proposed that tracheal elongation serves to exaggerate the apparent size of a vocalizing bird, and this ‘size exaggeration’ hypothesis is found to be consistent with current theories of avian vocal production and a wide range of comparative ecological and behavioural data. Expand
Vocal mechanics in Darwin's finches: correlation of beak gape and song frequency
TLDR
It is found that song frequency regressed significantly and positively on beak gape for 38 of 56 individuals and for all seven species examined, providing broad support for a resonance model of vocal tract function in Darwin's finches. Expand
On the existence and potential functions of low-amplitude vocalizations in North American birds
TLDR
Survey of the existence and putative functions of low-amplitude vocalizations across 749 species accounts of breeding birds in North America suggests that low- AMP vocalizations are common at a broad taxonomic scale, and that low/novel songs may be a distinct class of vocal signal. Expand
The structure of vocal sounds produced with the mouth closed or with the mouth open in treefrogs.
  • M. Gridi-Papp
  • Geology, Medicine
  • The Journal of the Acoustical Society of America
  • 2008
TLDR
By calling with the mouth closed, treefrogs can potentially produce advertisement calls with the energy concentrated in a narrower frequency range than with the Mouth Open, according to the spectral differences observed between natural advertisement calls and distress calls. Expand
Vocal Tract Articulation in Zebra Finches
TLDR
These findings confirm that birds can modulate their song by using vocal tract filtering and demonstrate how OEC and beak gape contribute to this modulation. Expand
Songbirds tune their vocal tract to the fundamental frequency of their song.
TLDR
Through x-ray cinematography of singing birds, it is shown that birdsong is accompanied by cyclical movements of the hyoid skeleton and changes in the diameter of the cranial end of the esophagus that maintain an inverse relationship between the volume of the oropharyngeal cavity and esophagi and the song's fundamental frequency. Expand
Subglottal pressure and fundamental frequency control in contact calls of juvenile Alligator mississippiensis
TLDR
The morphological and physiological features of sound production in alligators are investigated and it is concluded that the alligator larynx represents a sound source with only two control parameters (subglottal pressure and vocal fold adduction) in contrast to the mammalian larynX in which three parameters can be altered to modulate frequency. Expand
The acoustic effect of vocal tract adjustments in zebra finches
TLDR
The spectral emphasis during zebra finch call production ranging between 2.5 and 5 kHz was not present during respiratory sounds, indicating strongly that it can be attributed to the OEC expansion. Expand
Vocal tract resonances in oscine bird sound production: evidence from birdsongs in a helium atmosphere
TLDR
Not only does the songbird's vocal tract act as an acoustic filter, but its filter characteristics are actively coordinated with the output of the syrinx, suggesting that birdsong and human phonation are more analogous than previously thought. Expand
...
1
2
3
4
5
...