s12983-020-00383-9.pdf 1,84MB
1000 Titel
  • Rutting vocal display in male impala (Aepyceros melampus) and overlap with alarm context
1000 Autor/in
  1. Volodin, Ilya |
  2. Volodina, Elena |
  3. Frey, Roland |
1000 Erscheinungsjahr 2021
1000 LeibnizOpen
1000 Publikationstyp
  1. Artikel |
1000 Online veröffentlicht
  • 2021-01-07
1000 Erschienen in
1000 Quellenangabe
  • 18(1):2
1000 FRL-Sammlung
1000 Copyrightjahr
  • 2021
1000 Lizenz
1000 Verlagsversion
  • |
  • |
1000 Ergänzendes Material
  • |
1000 Publikationsstatus
1000 Begutachtungsstatus
1000 Sprache der Publikation
1000 Abstract/Summary
  • BACKGROUND: The rutting vocal display of male impala Aepyceros melampus is unique for its complexity among ruminants. This study investigates bouts of rutting calls produced towards potential mates and rival males by free-ranging male impala in Namibia. In particular, a comparison of male rutting and alarm snorts is conducted, inspired by earlier findings of mate guarding by using alarm snorts in male topi Damaliscus lunatus. RESULTS: Rutting male impala produced 4–38 (13.5 ± 6.5) rutting calls per bout. We analyzed 201 bouts, containing in total 2709 rutting calls of five types: continuous roars produced within a single exhalation-inhalation cycle; interrupted roars including few exhalation-inhalation cycles; pant-roars distinctive by a pant-phase with rapidly alternating inhalations and exhalations; usual snorts lacking any roar part; and roar-snorts starting with a short roar part. Bouts mostly started and ended with usual snorts. Continuous roars were the shortest roars. The average duration of the exhalatory phase was longest in the continuous roars and shortest in the pant-roars. The average fundamental frequency (49.7–51.4 Hz) did not differ between roar types. Vocal tract length, calculated by using measurements of the first four vocal tract resonances (formants), ranged within 381–382 mm in all roar types. In the studied male impala, rutting snorts within bouts of rutting calls were longer and had higher values of the upper quartile in the call spectra than alarm snorts produced towards potential danger. CONCLUSIONS: Additional inhalations during the emission of the interrupted and pant-roars prolong their duration compared to the continuous roars but do not affect the fundamental frequency or the degree of larynx retraction while roaring. Alarm snorts are separated from one another by large intervals, whereas the intervals between rutting snorts within bouts are short. Sometimes, rutting snorts alternate with roars, whereas alarm snorts do not. Therefore, it is not the acoustic structure of individual snorts but the temporal sequence and the occasional association with another call type that defines snorts as either rutting or alarm snorts. The rutting snorts of male impala may function to attract the attention of receptive females and delay their departure from a male’s harem or territory.
1000 Sacherschließung
lokal Acoustic variables
lokal Polygynous mammal
lokal Pant-call
lokal Inhalatory and exhalatory vocalization phases
lokal Harem ruminant
lokal Alarm call
lokal Bout structure
lokal Rutting snort
lokal Call sequence
1000 Fächerklassifikation (DDC)
1000 Liste der Beteiligten
1000 Label
1000 Förderer
  1. Russian Foundation for Basic Research |
1000 Fördernummer
  1. 19–04-00133
1000 Förderprogramm
  1. -
1000 Dateien
1000 Förderung
  1. 1000 joinedFunding-child
    1000 Förderer Russian Foundation for Basic Research |
    1000 Förderprogramm -
    1000 Fördernummer 19–04-00133
1000 Objektart article
1000 Beschrieben durch
1000 @id frl:6427321.rdf
1000 Erstellt am 2021-05-07T10:36:51.079+0200
1000 Erstellt von 25
1000 beschreibt frl:6427321
1000 Bearbeitet von 25
1000 Zuletzt bearbeitet Fri May 07 10:37:50 CEST 2021
1000 Objekt bearb. Fri May 07 10:37:31 CEST 2021
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