Communication sounds of Commerson's dolphins (Cephalorhynchus commersonii) and contextual use of vocalizations

Cetaceans produce a variety of vocalizations to communicate; however, little information exists on the acoustic behavior displayed by Commerson's dolphins (Cephalorhynchus commersonii) in the wild other than their echolocation behavior. Most available literature suggests that Commerson's d...

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Autores principales: Reyes Reyes, M.V., Tossenberger, V.P., Iñiguez, M.A., Hildebrand, J.A., Melcón, M.L.
Formato: JOUR
Materias:
acoustic behavior
Bahía San Julián
Cephalorhynchus commersonii
Commerson's dolphin
communication
vocalizations
behavioral ecology
behavioral response
bioacoustics
communication behavior
dolphin
echolocation
hearing
parental care
predation risk
vocalization
Argentina
Santa Cruz [Argentina]
Cetacea
Orcinus orca
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_08240469_v32_n4_p1219_ReyesReyes
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_08240469_v32_n4_p1219_ReyesReyes
record_format dspace
spelling todo:paper_08240469_v32_n4_p1219_ReyesReyes2023-10-03T15:40:00Z Communication sounds of Commerson's dolphins (Cephalorhynchus commersonii) and contextual use of vocalizations Reyes Reyes, M.V. Tossenberger, V.P. Iñiguez, M.A. Hildebrand, J.A. Melcón, M.L. acoustic behavior Bahía San Julián Cephalorhynchus commersonii Commerson's dolphin communication vocalizations behavioral ecology behavioral response bioacoustics communication behavior dolphin echolocation hearing parental care predation risk vocalization Argentina Santa Cruz [Argentina] Cephalorhynchus commersonii Cetacea Orcinus orca Cetaceans produce a variety of vocalizations to communicate; however, little information exists on the acoustic behavior displayed by Commerson's dolphins (Cephalorhynchus commersonii) in the wild other than their echolocation behavior. Most available literature suggests that Commerson's dolphins do not produce any other sound type besides narrow-band high-frequency (NBHF) clicks, such that no signals are emitted below 100 kHz. We conducted acoustic recordings together with sightings to study the acoustic behavior of Commerson's dolphins in Bahia San Julian, Argentina. This is the first study that provides evidence that this species produces a variety of acoustic signals, including whistles and broad-band clicks (BBC), with frequency content well below 100 kHz. Whistles were recorded mostly in the presence of mother and calf and were associated with parental behavior. BBC may be used for communication purposes by adults. These vocalizations are within the hearing range of killer whales and so could pose a risk of predation for Commerson's dolphins. Whether this population of Commerson's dolphins produce all these types of signals while they are in the open sea out of the waters of Bahía San Julián, which are apparently safe from predation, remains unknown. © 2016 Society for Marine Mammalogy JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_08240469_v32_n4_p1219_ReyesReyes
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic acoustic behavior
Bahía San Julián
Cephalorhynchus commersonii
Commerson's dolphin
communication
vocalizations
behavioral ecology
behavioral response
bioacoustics
communication behavior
dolphin
echolocation
hearing
parental care
predation risk
vocalization
Argentina
Santa Cruz [Argentina]
Cephalorhynchus commersonii
Cetacea
Orcinus orca
spellingShingle acoustic behavior
Bahía San Julián
Cephalorhynchus commersonii
Commerson's dolphin
communication
vocalizations
behavioral ecology
behavioral response
bioacoustics
communication behavior
dolphin
echolocation
hearing
parental care
predation risk
vocalization
Argentina
Santa Cruz [Argentina]
Cephalorhynchus commersonii
Cetacea
Orcinus orca
Reyes Reyes, M.V.
Tossenberger, V.P.
Iñiguez, M.A.
Hildebrand, J.A.
Melcón, M.L.
Communication sounds of Commerson's dolphins (Cephalorhynchus commersonii) and contextual use of vocalizations
topic_facet acoustic behavior
Bahía San Julián
Cephalorhynchus commersonii
Commerson's dolphin
communication
vocalizations
behavioral ecology
behavioral response
bioacoustics
communication behavior
dolphin
echolocation
hearing
parental care
predation risk
vocalization
Argentina
Santa Cruz [Argentina]
Cephalorhynchus commersonii
Cetacea
Orcinus orca
description Cetaceans produce a variety of vocalizations to communicate; however, little information exists on the acoustic behavior displayed by Commerson's dolphins (Cephalorhynchus commersonii) in the wild other than their echolocation behavior. Most available literature suggests that Commerson's dolphins do not produce any other sound type besides narrow-band high-frequency (NBHF) clicks, such that no signals are emitted below 100 kHz. We conducted acoustic recordings together with sightings to study the acoustic behavior of Commerson's dolphins in Bahia San Julian, Argentina. This is the first study that provides evidence that this species produces a variety of acoustic signals, including whistles and broad-band clicks (BBC), with frequency content well below 100 kHz. Whistles were recorded mostly in the presence of mother and calf and were associated with parental behavior. BBC may be used for communication purposes by adults. These vocalizations are within the hearing range of killer whales and so could pose a risk of predation for Commerson's dolphins. Whether this population of Commerson's dolphins produce all these types of signals while they are in the open sea out of the waters of Bahía San Julián, which are apparently safe from predation, remains unknown. © 2016 Society for Marine Mammalogy
format JOUR
author Reyes Reyes, M.V.
Tossenberger, V.P.
Iñiguez, M.A.
Hildebrand, J.A.
Melcón, M.L.
author_facet Reyes Reyes, M.V.
Tossenberger, V.P.
Iñiguez, M.A.
Hildebrand, J.A.
Melcón, M.L.
author_sort Reyes Reyes, M.V.
title Communication sounds of Commerson's dolphins (Cephalorhynchus commersonii) and contextual use of vocalizations
title_short Communication sounds of Commerson's dolphins (Cephalorhynchus commersonii) and contextual use of vocalizations
title_full Communication sounds of Commerson's dolphins (Cephalorhynchus commersonii) and contextual use of vocalizations
title_fullStr Communication sounds of Commerson's dolphins (Cephalorhynchus commersonii) and contextual use of vocalizations
title_full_unstemmed Communication sounds of Commerson's dolphins (Cephalorhynchus commersonii) and contextual use of vocalizations
title_sort communication sounds of commerson's dolphins (cephalorhynchus commersonii) and contextual use of vocalizations
url http://hdl.handle.net/20.500.12110/paper_08240469_v32_n4_p1219_ReyesReyes
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AT iniguezma communicationsoundsofcommersonsdolphinscephalorhynchuscommersoniiandcontextualuseofvocalizations
AT hildebrandja communicationsoundsofcommersonsdolphinscephalorhynchuscommersoniiandcontextualuseofvocalizations
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