Vocal tract anatomy of king penguins: morphological traits of two-voiced sound production
Background The astonishing variety of sounds that birds can produce has been the subject of many studies aiming to identify the underlying anatomical and physical mechanisms of sound production. An interesting feature of some bird vocalisations is the simultaneous production of two different frequen...
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BioMed Central
2020
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ftunivzuerich:oai:www.zora.uzh.ch:200381 2024-09-30T14:38:06+00:00 Vocal tract anatomy of king penguins: morphological traits of two-voiced sound production Kriesell, Hannah Joy Le Bohec, Céline Cerwenka, Alexander F Hertel, Moritz Robin, Jean-Patrice Ruthensteiner, Bernhard Gahr, Manfred Aubin, Thierry Düring, Daniel Normen 2020-12-01 application/pdf https://www.zora.uzh.ch/id/eprint/200381/ https://www.zora.uzh.ch/id/eprint/200381/1/s12983-020-0351-8.pdf https://doi.org/10.5167/uzh-200381 https://doi.org/10.1186/s12983-020-0351-8 eng eng BioMed Central https://www.zora.uzh.ch/id/eprint/200381/1/s12983-020-0351-8.pdf doi:10.5167/uzh-200381 doi:10.1186/s12983-020-0351-8 urn:issn:1742-9994 info:eu-repo/semantics/openAccess Creative Commons: Attribution 4.0 International (CC BY 4.0) http://creativecommons.org/licenses/by/4.0/ Kriesell, Hannah Joy; Le Bohec, Céline; Cerwenka, Alexander F; Hertel, Moritz; Robin, Jean-Patrice; Ruthensteiner, Bernhard; Gahr, Manfred; Aubin, Thierry; Düring, Daniel Normen (2020). Vocal tract anatomy of king penguins: morphological traits of two-voiced sound production. Frontiers in Zoology, 17(1):5. Institute of Neuroinformatics 570 Life sciences biology Animal Science and Zoology Ecology Evolution Behavior and Systematics Journal Article PeerReviewed info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2020 ftunivzuerich https://doi.org/10.5167/uzh-20038110.1186/s12983-020-0351-8 2024-09-18T00:49:49Z Background The astonishing variety of sounds that birds can produce has been the subject of many studies aiming to identify the underlying anatomical and physical mechanisms of sound production. An interesting feature of some bird vocalisations is the simultaneous production of two different frequencies. While most work has been focusing on songbirds, much less is known about dual-sound production in non-passerines, although their sound production organ, the syrinx, would technically allow many of them to produce “two voices”. Here, we focus on the king penguin, a colonial seabird whose calls consist of two fundamental frequency bands and their respective harmonics. The calls are produced during courtship and for partner and offspring reunions and encode the birds’ identity. We dissected, μCT-scanned and analysed the vocal tracts of six adult king penguins from Possession Island, Crozet Archipelago. Results King penguins possess a bronchial type syrinx that, similarly to the songbird’s tracheobronchial syrinx, has two sets of vibratory tissues, and thus two separate sound sources. Left and right medial labium differ consistently in diameter between 0.5 and 3.2%, with no laterality between left and right side. The trachea has a conical shape, increasing in diameter from caudal to cranial by 16%. About 80% of the king penguins’ trachea is medially divided by a septum consisting of soft elastic tissue (septum trachealis medialis). Conclusions The king penguins’ vocal tract appears to be mainly adapted to the life in a noisy colony of a species that relies on individual vocal recognition. The extent between the two voices encoding for individuality seems morphologically dictated by the length difference between left and right medial labium. The septum trachealis medialis might support this extent and could therefore be an important anatomical feature that aids in the individual recognition process. Article in Journal/Newspaper King Penguins Possession Island University of Zurich (UZH): ZORA (Zurich Open Repository and Archive Possession Island ENVELOPE(171.200,171.200,-71.867,-71.867) |
institution |
Open Polar |
collection |
University of Zurich (UZH): ZORA (Zurich Open Repository and Archive |
op_collection_id |
ftunivzuerich |
language |
English |
topic |
Institute of Neuroinformatics 570 Life sciences biology Animal Science and Zoology Ecology Evolution Behavior and Systematics |
spellingShingle |
Institute of Neuroinformatics 570 Life sciences biology Animal Science and Zoology Ecology Evolution Behavior and Systematics Kriesell, Hannah Joy Le Bohec, Céline Cerwenka, Alexander F Hertel, Moritz Robin, Jean-Patrice Ruthensteiner, Bernhard Gahr, Manfred Aubin, Thierry Düring, Daniel Normen Vocal tract anatomy of king penguins: morphological traits of two-voiced sound production |
topic_facet |
Institute of Neuroinformatics 570 Life sciences biology Animal Science and Zoology Ecology Evolution Behavior and Systematics |
description |
Background The astonishing variety of sounds that birds can produce has been the subject of many studies aiming to identify the underlying anatomical and physical mechanisms of sound production. An interesting feature of some bird vocalisations is the simultaneous production of two different frequencies. While most work has been focusing on songbirds, much less is known about dual-sound production in non-passerines, although their sound production organ, the syrinx, would technically allow many of them to produce “two voices”. Here, we focus on the king penguin, a colonial seabird whose calls consist of two fundamental frequency bands and their respective harmonics. The calls are produced during courtship and for partner and offspring reunions and encode the birds’ identity. We dissected, μCT-scanned and analysed the vocal tracts of six adult king penguins from Possession Island, Crozet Archipelago. Results King penguins possess a bronchial type syrinx that, similarly to the songbird’s tracheobronchial syrinx, has two sets of vibratory tissues, and thus two separate sound sources. Left and right medial labium differ consistently in diameter between 0.5 and 3.2%, with no laterality between left and right side. The trachea has a conical shape, increasing in diameter from caudal to cranial by 16%. About 80% of the king penguins’ trachea is medially divided by a septum consisting of soft elastic tissue (septum trachealis medialis). Conclusions The king penguins’ vocal tract appears to be mainly adapted to the life in a noisy colony of a species that relies on individual vocal recognition. The extent between the two voices encoding for individuality seems morphologically dictated by the length difference between left and right medial labium. The septum trachealis medialis might support this extent and could therefore be an important anatomical feature that aids in the individual recognition process. |
format |
Article in Journal/Newspaper |
author |
Kriesell, Hannah Joy Le Bohec, Céline Cerwenka, Alexander F Hertel, Moritz Robin, Jean-Patrice Ruthensteiner, Bernhard Gahr, Manfred Aubin, Thierry Düring, Daniel Normen |
author_facet |
Kriesell, Hannah Joy Le Bohec, Céline Cerwenka, Alexander F Hertel, Moritz Robin, Jean-Patrice Ruthensteiner, Bernhard Gahr, Manfred Aubin, Thierry Düring, Daniel Normen |
author_sort |
Kriesell, Hannah Joy |
title |
Vocal tract anatomy of king penguins: morphological traits of two-voiced sound production |
title_short |
Vocal tract anatomy of king penguins: morphological traits of two-voiced sound production |
title_full |
Vocal tract anatomy of king penguins: morphological traits of two-voiced sound production |
title_fullStr |
Vocal tract anatomy of king penguins: morphological traits of two-voiced sound production |
title_full_unstemmed |
Vocal tract anatomy of king penguins: morphological traits of two-voiced sound production |
title_sort |
vocal tract anatomy of king penguins: morphological traits of two-voiced sound production |
publisher |
BioMed Central |
publishDate |
2020 |
url |
https://www.zora.uzh.ch/id/eprint/200381/ https://www.zora.uzh.ch/id/eprint/200381/1/s12983-020-0351-8.pdf https://doi.org/10.5167/uzh-200381 https://doi.org/10.1186/s12983-020-0351-8 |
long_lat |
ENVELOPE(171.200,171.200,-71.867,-71.867) |
geographic |
Possession Island |
geographic_facet |
Possession Island |
genre |
King Penguins Possession Island |
genre_facet |
King Penguins Possession Island |
op_source |
Kriesell, Hannah Joy; Le Bohec, Céline; Cerwenka, Alexander F; Hertel, Moritz; Robin, Jean-Patrice; Ruthensteiner, Bernhard; Gahr, Manfred; Aubin, Thierry; Düring, Daniel Normen (2020). Vocal tract anatomy of king penguins: morphological traits of two-voiced sound production. Frontiers in Zoology, 17(1):5. |
op_relation |
https://www.zora.uzh.ch/id/eprint/200381/1/s12983-020-0351-8.pdf doi:10.5167/uzh-200381 doi:10.1186/s12983-020-0351-8 urn:issn:1742-9994 |
op_rights |
info:eu-repo/semantics/openAccess Creative Commons: Attribution 4.0 International (CC BY 4.0) http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.5167/uzh-20038110.1186/s12983-020-0351-8 |
_version_ |
1811640828503785472 |