Source level estimates for sei whale ( Balaenoptera borealis) vocalizations off the Azores. Romagosa, M., Boisseau, O., Cucknell, A.-C., Moscrop, A.
Sei whale sounds recorded in the Antarctic. Long distance passive localization of vocalizing sei whales using an acoustic normal mode approach. Low-frequency vocalizations of sei whales ( Balaenoptera borealis) in the Southern Ocean. Low frequency vocalizations attributed to sei whales ( Balaenoptera borealis). Myoelastic-aerodynamic theory of voice production. Measurement of Young’s modulus of vocal folds by indentation. High-fidelity continuum modeling predicts avian voiced sound production. Cause-effect relationship between vocal fold physiology and voice production in a three-dimensional phonation model. Mechanics of human voice production and control. Anatomical mechanism for protecting the airway in the largest animals on Earth.
Rorqual whale nasal plugs: protecting the respiratory tract against water entry and barotrauma. Functional morphology of the hyolaryngeal complex of the harbor porpoise ( Phocoena phocoena): implications for its role in sound production and respiration. Orientation by means of long range acoustic signaling in baleen whales. Communication masking in marine mammals: a review and research strategy. Small reductions in cargo vessel speed substantially reduce noise impacts to marine mammals. R., Rojano-Doñate, L., Tougaard, J., Johnson, M. Universal mechanisms of sound production and control in birds and mammals. Dynamic system coupling in voice production. Review of underwater and in-air sounds emitted by Australian and Antarctic marine mammals. A study of vocal nonlinearities in humpback whale songs: from production mechanisms to acoustic analysis.
New acoustic model for humpback whale sound production. in Ethology and Behavioral Ecology of Mysticetes (eds Clark, C. Toothed whales use distinct vocal registers for echolocation and communication. Anatomy and functional morphology of the mysticete rorqual whale larynx: phonation positions of the U-fold. The anatomy of the larynx of the bowhead whale, Balaena mysticetus, and its sound-producing functions. Discovery of a low frequency sound source in Mysticeti (baleen whales): anatomical establishment of a vocal fold homolog. (eds) Ethology and Behavioral Ecology of Mysticetes (Springer, 2022). However, these laryngeal structures set insurmountable physiological limits to the frequency range and depth of their vocalizations, preventing them from escaping anthropogenic vessel noise 12, 13 and communicating at great depths 14, thereby greatly reducing their active communication range.Ĭlark, C. Furthermore, we show that this phonation mechanism is likely to be ancestral to all mysticetes and shares its fundamental physical basis with most terrestrial mammals, including humans 10, birds 11, and their closest relatives, odontocetes 5. These structures allow some of the largest animals that ever lived to efficiently produce frequency-modulated, low-frequency calls. Here we combine experiments on the excised larynx of three mysticete species with detailed anatomy and computational models to show that mysticetes evolved unique laryngeal structures for sound production. However, there has been no direct demonstration that the mysticete larynx can phonate, or if it does, how it produces the great diversity of mysticete sounds 9. Whereas toothed whales (odontocetes) evolved a nasal vocal organ 5, mysticetes have been thought to use the larynx for sound production 1, 6, 7, 8. Adapting to an obligate aquatic lifestyle demanded fundamental physiological changes to efficiently produce sound, including laryngeal specializations 2, 3, 4. Baleen whales (mysticetes) use vocalizations to mediate their complex social and reproductive behaviours in vast, opaque marine environments 1.