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All fields Title Creator / Publisher Keyword Year AND OR AND NOT All fields Title Creator / Publisher Keyword Year AND OR AND NOT All fields Title Creator / Publisher Keyword Year AND OR AND NOT All fields Title Creator / Publisher Keyword Year AND OR AND NOT All fields Title Creator / Publisher Keyword Year Sort by creator [A → Z]' creator [Z → A]' publishing year ↑ (asc)' publishing year ↓ (desc)' title [A → Z]' title [Z → A]' Simple Search Hits 1 – 8 of 8 1 Vocal tract anatomy of king penguins: morphological traits of two-voiced sound production Kriesell, Hannah J.; Le Bohec, Céline; Cerwenka, Alexander F.; Hertel, Moritz; Robin, Jean-Patrice; Ruthensteiner, Bernhard; Gahr, Manfred; Aubin, Thierry; Düring, Daniel N. In: Frontiers in Zoology, 17 (1) (2020) Abstract: 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. ; ISSN:1742-9994 Keyword: 3D reconstruction; Micro computed tomography; Spheniscidae; Syrinx anatomy; Vocal communication URL: https://hdl.handle.net/20.500.11850/401523 https://doi.org/10.3929/ethz-b-000401523 BASE Hide details 2 Vocal tract anatomy of king penguins: morphological traits of two-voiced sound production Kriesell, Hannah Joy; Le Bohec, Céline; Cerwenka, Alexander F.. - : BioMed Central, 2020 BASE Show details 3 Vocal tract anatomy of king penguins: morphological traits of two-voiced sound production Kriesell, Hannah Joy; Le Bohec, Céline; Cerwenka, Alexander F... In: 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. (2020) BASE Show details 4 Politische Interviews Düring, Daniel In: Handbuch Sprache und Politik. Band II (2017), 532-552 IDS Bibliografie zur Gesprächsforschung Show details 5 Das Handlungsmuster des Befehls in der NS-Zeit Düring, Daniel [Verfasser]. - Bremen : Hempen, 2013 DNB Subject Category Language Show details 6 Das Handlungsmuster des Befehls in der NS-Zeit Düring, Daniel. - Bremen : Hempen, 2013 BLLDB UB Frankfurt Linguistik Show details 7 Das Handlungsmuster des Befehls in der NS-Zeit Düring, Daniel. - Bremen : Hempen, 2013 IDS Mannheim Show details 8 Online-Ressourcen zum Thema "Sprache und Nationalsozialismus" Düring, Daniel In: Zeitschrift für germanistische Linguistik. - Berlin [u.a.] : de Gruyter 40 (2012) 2, 285-288 BLLDB OLC Linguistik Show details

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