joa.13114.pdf 6,05MB
1000 Titel
  • Savannah roars: The vocal anatomy and the impressive rutting calls of male impala (Aepyceros melampus) – highlighting the acoustic correlates of a mobile larynx
1000 Autor/in
  1. Frey, Roland |
  2. Volodin, Ilya |
  3. Volodina, Elena |
  4. Efremova, Kseniya O. |
  5. Menges, Vera |
  6. Portas, Rubén |
  7. Melzheimer, Joerg |
  8. Fritsch, Guido |
  9. Gerlach, Christina |
  10. von Dörnberg, Katja |
1000 LeibnizOpen
1000 Publikationstyp
  1. Artikel |
1000 Online veröffentlicht
  • 2019-11-28
1000 Erschienen in
1000 Quellenangabe
  • 236(3):398-424
1000 FRL-Sammlung
1000 Copyrightjahr
  • 2019
1000 Lizenz
1000 Verlagsversion
  • |
  • |
1000 Ergänzendes Material
  • |
1000 Publikationsstatus
1000 Begutachtungsstatus
1000 Sprache der Publikation
1000 Abstract/Summary
  • A retractable larynx and adaptations of the vocal folds in the males of several polygynous ruminants serve for the production of rutting calls that acoustically announce larger than actual body size to both rival males and potential female mates. Here, such features of the vocal tract and of the sound source are documented in another species. We investigated the vocal anatomy and laryngeal mobility including its acoustical effects during the rutting vocal display of free-ranging male impala (Aepyceros melampus melampus) in Namibia. Male impala produced bouts of rutting calls (consisting of oral roars and interspersed explosive nasal snorts) in a low-stretch posture while guarding a rutting territory or harem. For the duration of the roars, male impala retracted the larynx from its high resting position to a low mid-neck position involving an extensible pharynx and a resilient connection between the hyoid apparatus and the larynx. Maximal larynx retraction was 108 mm based on estimates in video single frames. This was in good concordance with 91-mm vocal tract elongation calculated on the basis of differences in formant dispersion between roar portions produced with the larynx still ascended and those produced with maximally retracted larynx. Judged by their morphological traits, the larynx-retracting muscles of male impala are homologous to those of other larynx-retracting ruminants. In contrast, the large and massive vocal keels are evolutionary novelties arising by fusion and linear arrangement of the arytenoid cartilage and the canonical vocal fold. These bulky and histologically complex vocal keels produced a low fundamental frequency of 50 Hz. Impala is another ruminant species in which the males are capable of larynx retraction. In addition, male impala vocal folds are spectacularly specialized compared with domestic bovids, allowing the production of impressive, low-frequency roaring vocalizations as a significant part of their rutting behaviour. Our study expands knowledge on the evolutionary variation of vocal fold morphology in mammals, suggesting that the structure of the mammalian sound source is not always human-like and should be considered in acoustic analysis and modelling.
1000 Sacherschließung
lokal ruminant
lokal mammal
lokal polygyny
lokal vocal posture
lokal vocal fold
lokal Felidae
lokal formants
lokal roaring
lokal sexual selection
lokal Bovidae
lokal vocal tract
lokal fundamental frequency
lokal larynx retraction
1000 Fächerklassifikation (DDC)
1000 Liste der Beteiligten
1000 Label
1000 Förderer
  1. Russian Foundation for Basic Research (RFBR) |
  2. Projekt DEAL |
1000 Fördernummer
  1. 19‐04‐00133
  2. -
1000 Förderprogramm
  1. -
  2. Open access funding
1000 Dateien
1000 Förderung
  1. 1000 joinedFunding-child
    1000 Förderer Russian Foundation for Basic Research (RFBR) |
    1000 Förderprogramm -
    1000 Fördernummer 19‐04‐00133
  2. 1000 joinedFunding-child
    1000 Förderer Projekt DEAL |
    1000 Förderprogramm Open access funding
    1000 Fördernummer -
1000 Objektart article
1000 Beschrieben durch
1000 @id frl:6426571.rdf
1000 Erstellt am 2021-03-31T10:35:31.154+0200
1000 Erstellt von 122
1000 beschreibt frl:6426571
1000 Bearbeitet von 218
1000 Zuletzt bearbeitet Fri May 13 16:03:20 CEST 2022
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