Potential Sources of High Frequency and Biphonic Vocalization in the Dhole (Cuon alpinus).

Biphonation, i.e. two independent fundamental frequencies in a call spectrum, is a prominent feature of vocal activity in dog-like canids. Dog-like canids can produce a low (f0) and a high (g0) fundamental frequency simultaneously. In contrast, fox-like canids are only capable of producing the low f...

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Main Authors: Roland Frey, Ilya A Volodin, Guido Fritsch, Elena V Volodina
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2016-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC4701476?pdf=render
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spelling doaj-9aae4d058b084812a43e6291234d07c92020-11-25T01:33:17ZengPublic Library of Science (PLoS)PLoS ONE1932-62032016-01-01111e014633010.1371/journal.pone.0146330Potential Sources of High Frequency and Biphonic Vocalization in the Dhole (Cuon alpinus).Roland FreyIlya A VolodinGuido FritschElena V VolodinaBiphonation, i.e. two independent fundamental frequencies in a call spectrum, is a prominent feature of vocal activity in dog-like canids. Dog-like canids can produce a low (f0) and a high (g0) fundamental frequency simultaneously. In contrast, fox-like canids are only capable of producing the low fundamental frequency (f0). Using a comparative anatomical approach for revealing macroscopic structures potentially responsible for canid biphonation, we investigated the vocal anatomy for 4 (1 male, 3 female) captive dholes (Cuon alpinus) and for 2 (1 male, 1 female) wild red fox (Vulpes vulpes). In addition, we analyzed the acoustic structure of vocalizations in the same dholes that served postmortem as specimens for the anatomical investigation. All study dholes produced both high-frequency and biphonic calls. The anatomical reconstructions revealed that the vocal morphologies of the dhole are very similar to those of the red fox. These results suggest that the high-frequency and biphonic calls in dog-like canids can be produced without specific anatomical adaptations of the sound-producing structures. We discuss possible production modes for the high-frequency and biphonic calls involving laryngeal and nasal structures.http://europepmc.org/articles/PMC4701476?pdf=render
collection DOAJ
language English
format Article
sources DOAJ
author Roland Frey
Ilya A Volodin
Guido Fritsch
Elena V Volodina
spellingShingle Roland Frey
Ilya A Volodin
Guido Fritsch
Elena V Volodina
Potential Sources of High Frequency and Biphonic Vocalization in the Dhole (Cuon alpinus).
PLoS ONE
author_facet Roland Frey
Ilya A Volodin
Guido Fritsch
Elena V Volodina
author_sort Roland Frey
title Potential Sources of High Frequency and Biphonic Vocalization in the Dhole (Cuon alpinus).
title_short Potential Sources of High Frequency and Biphonic Vocalization in the Dhole (Cuon alpinus).
title_full Potential Sources of High Frequency and Biphonic Vocalization in the Dhole (Cuon alpinus).
title_fullStr Potential Sources of High Frequency and Biphonic Vocalization in the Dhole (Cuon alpinus).
title_full_unstemmed Potential Sources of High Frequency and Biphonic Vocalization in the Dhole (Cuon alpinus).
title_sort potential sources of high frequency and biphonic vocalization in the dhole (cuon alpinus).
publisher Public Library of Science (PLoS)
series PLoS ONE
issn 1932-6203
publishDate 2016-01-01
description Biphonation, i.e. two independent fundamental frequencies in a call spectrum, is a prominent feature of vocal activity in dog-like canids. Dog-like canids can produce a low (f0) and a high (g0) fundamental frequency simultaneously. In contrast, fox-like canids are only capable of producing the low fundamental frequency (f0). Using a comparative anatomical approach for revealing macroscopic structures potentially responsible for canid biphonation, we investigated the vocal anatomy for 4 (1 male, 3 female) captive dholes (Cuon alpinus) and for 2 (1 male, 1 female) wild red fox (Vulpes vulpes). In addition, we analyzed the acoustic structure of vocalizations in the same dholes that served postmortem as specimens for the anatomical investigation. All study dholes produced both high-frequency and biphonic calls. The anatomical reconstructions revealed that the vocal morphologies of the dhole are very similar to those of the red fox. These results suggest that the high-frequency and biphonic calls in dog-like canids can be produced without specific anatomical adaptations of the sound-producing structures. We discuss possible production modes for the high-frequency and biphonic calls involving laryngeal and nasal structures.
url http://europepmc.org/articles/PMC4701476?pdf=render
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