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Brewer AM, Castellote M, Van Cise AM, Gage T, Berdahl AM. Communication in Cook Inlet beluga whales: Describing the vocal repertoire and masking of calls by commercial ship noise. THE JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA 2023; 154:3487-3505. [PMID: 38032263 DOI: 10.1121/10.0022516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Accepted: 11/06/2023] [Indexed: 12/01/2023]
Abstract
Many species rely on acoustic communication to coordinate activities and communicate to conspecifics. Cataloging vocal behavior is a first step towards understanding how individuals communicate information and how communication may be degraded by anthropogenic noise. The Cook Inlet beluga population is endangered with an estimated 331 individuals. Anthropogenic noise is considered a threat for this population and can negatively impact communication. To characterize this population's vocal behavior, vocalizations were measured and classified into three categories: whistles (n = 1264, 77%), pulsed calls (n = 354, 22%), and combined calls (n = 15, 1%), resulting in 41 call types. Two quantitative analyses were conducted to compare with the manual classification. A classification and regression tree and Random Forest had a 95% and 85% agreement with the manual classification, respectively. The most common call types per category were then used to investigate masking by commercial ship noise. Results indicate that these call types were partially masked by distant ship noise and completely masked by close ship noise in the frequency range of 0-12 kHz. Understanding vocal behavior and the effects of masking in Cook Inlet belugas provides important information supporting the management of this endangered population.
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Affiliation(s)
- Arial M Brewer
- School of Aquatic and Fishery Sciences, University of Washington, Seattle, Washington 98195, USA
| | - Manuel Castellote
- Cooperative Institute for Climate, Ocean and Ecosystem Studies, University of Washington, Seattle, Washington 98195, USA
| | - Amy M Van Cise
- School of Aquatic and Fishery Sciences, University of Washington, Seattle, Washington 98195, USA
| | - Tom Gage
- Alaska Department of Fish and Game, Anchorage, Alaska 99518, USA
| | - Andrew M Berdahl
- School of Aquatic and Fishery Sciences, University of Washington, Seattle, Washington 98195, USA
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2
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Rio R. First acoustic evidence of signature whistle production by spinner dolphins (Stenella longirostris). Anim Cogn 2023; 26:1915-1927. [PMID: 37676587 DOI: 10.1007/s10071-023-01824-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 08/23/2023] [Accepted: 08/29/2023] [Indexed: 09/08/2023]
Abstract
A dolphin's signature whistle (SW) is a distinctive acoustic signal, issued in a bout pattern of unique frequency modulation contours; it allows individuals belonging to a given group to recognize each other and, consequently, to maintain contact and cohesion. The current study is the first scientific evidence that spinner dolphins (Stenella longirostris) produce SWs. Acoustic data were recorded at a shallow rest bay called "Biboca", in Fernando de Noronha Archipelago, Brazil. In total, 1902 whistles were analyzed; 40% (753/1,902) of them were classified as stereotyped whistles (STW). Based on the SIGID method, 63% (472/753) of all STWs were identified as SWs; subsequently, they were categorized into one of 18 SW types. SWs accounted for 25% (472/1,902) of the acoustic repertoire. External observers have shown near perfect agreement to classify whistles into the adopted SW categorization. Most acoustic and temporal variables measured for SWs showed mean values similar to those recorded in other studies with spinner dolphins, whose authors did not differentiate SWs from non-SWs. Principal component analysis has explained 78% of total SW variance, and it emphasized the relevance of shape/contour and frequency variables to SW variance. This scientific discovery helps improving bioacoustics knowledge about the investigated species. Future studies to be conducted in Fernando de Noronha Archipelago should focus on continuous investigations about SW development and use by S. longirostris, expanding individuals' identifications (Photo ID and SW Noronha Catalog), assessing long-term whistle stability and emission rates, and making mother-offspring comparisons with sex-based differences.
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Affiliation(s)
- Raul Rio
- Laboratory of Observational and Bioacoustics Technologies Applied to Biodiversity (TecBio), Department of Veterinary Medicine, Federal University of Juiz de Fora (UFJF), Juiz de Fora, Minas Gerais, Brazil.
- Ocean Sound, Non-Governmental Organization (NGO), Santos, São Paulo, Brazil.
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3
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Sportelli JJ, Jones BL, Ridgway SH. Non-linear phenomena: a common acoustic feature of bottlenose dolphin ( Tursiops truncatus) signature whistles. BIOACOUSTICS 2022. [DOI: 10.1080/09524622.2022.2106306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Affiliation(s)
- Jessica J. Sportelli
- Conservation Biology, Sound and Health, National Marine Mammal Foundation, San Diego, CA, USA
| | - Brittany L. Jones
- Conservation Biology, Sound and Health, National Marine Mammal Foundation, San Diego, CA, USA
| | - Sam H. Ridgway
- Conservation Biology, Sound and Health, National Marine Mammal Foundation, San Diego, CA, USA
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4
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Luís AR, May-Collado LJ, Rako-Gospić N, Gridley T, Papale E, Azevedo A, Silva MA, Buscaino G, Herzing D, dos Santos ME. Vocal universals and geographic variations in the acoustic repertoire of the common bottlenose dolphin. Sci Rep 2021; 11:11847. [PMID: 34088923 PMCID: PMC8178411 DOI: 10.1038/s41598-021-90710-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Accepted: 04/29/2021] [Indexed: 02/04/2023] Open
Abstract
Acoustical geographic variation is common in widely distributed species and it is already described for several taxa, at various scales. In cetaceans, intraspecific variation in acoustic repertoires has been linked to ecological factors, geographical barriers, and social processes. For the common bottlenose dolphin (Tursiops truncatus), studies on acoustic variability are scarce, focus on a single signal type-whistles and on the influence of environmental variables. Here, we analyze the acoustic emissions of nine bottlenose dolphin populations across the Atlantic Ocean and the Mediterranean Sea, and identify common signal types and acoustic variants to assess repertoires' (dis)similarity. Overall, these dolphins present a rich acoustic repertoire, with 24 distinct signal sub-types including: whistles, burst-pulsed sounds, brays and bangs. Acoustic divergence was observed only in social signals, suggesting the relevance of cultural transmission in geographic variation. The repertoire dissimilarity values were remarkably low (from 0.08 to 0.4) and do not reflect the geographic distances among populations. Our findings suggest that acoustic ecology may play an important role in the occurrence of intraspecific variability, as proposed by the 'environmental adaptation hypothesis'. Further work may clarify the boundaries between neighboring populations, and shed light into vocal learning and cultural transmission in bottlenose dolphin societies.
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Affiliation(s)
- A. R. Luís
- grid.410954.d0000 0001 2237 5901MARE - Marine and Environmental Sciences Centre, ISPA - Instituto Universitário, Rua Jardim do Tabaco, 34, 1149-041 Lisboa, Portugal ,Projecto Delfim - Centro Português de Estudo dos Mamíferos Marinhos, Rua Jardim do Tabaco, 34, 1149-041 Lisboa, Portugal
| | - L. J. May-Collado
- grid.59062.380000 0004 1936 7689Department of Biology, University of Vermont, Burlington, VT 05403 USA ,grid.412889.e0000 0004 1937 0706Centro de Investigacion en Ciencias del Mar y Limnologia, Universidad de Costa Rica, San Jose, Costa Rica
| | - N. Rako-Gospić
- Blue World Institute of Marine Research and Conservation, Kaštel 24, 51551 Veli Lošinj, Croatia
| | - T. Gridley
- grid.7836.a0000 0004 1937 1151Centre for Statistics in Ecology, Environment and Conservation, Department of Statistical Sciences, University of Cape Town, C/O Sea Search Research and Conservation NPC, Cape Town, South Africa
| | - E. Papale
- grid.5326.20000 0001 1940 4177Institute for the Study of Antropogenic Impacts and Sustainability in the Marine Environment, National Research Council, Capo Granitola, Via del Mare 3, 91021 Torretta Granitola (TP), Italy ,grid.7605.40000 0001 2336 6580Department of Life Sciences and Systems Biology, University of Torino, Via Accademia Albertina 13, 10123 Torino, Italy
| | - A. Azevedo
- grid.412211.5Laboratório de Mamíferos Aquáticos e Bioindicadores Profª Izabel Gurgel (MAQUA), Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil
| | - M. A. Silva
- grid.7338.f0000 0001 2096 9474OKEANOS & IMAR – Instituto do Mar, Universidade dos Açores, 9901-862 Horta, Portugal
| | - G. Buscaino
- grid.5326.20000 0001 1940 4177Institute for the Study of Antropogenic Impacts and Sustainability in the Marine Environment, National Research Council, Capo Granitola, Via del Mare 3, 91021 Torretta Granitola (TP), Italy
| | - D. Herzing
- Wild Dolphin Project, P.O. Box 8436, Jupiter, FL 33468 USA ,grid.255951.f0000 0004 0635 0263Department of Biological Sciences, Florida Atlantic University, Boca Raton, FL 33431 USA
| | - M. E. dos Santos
- grid.410954.d0000 0001 2237 5901MARE - Marine and Environmental Sciences Centre, ISPA - Instituto Universitário, Rua Jardim do Tabaco, 34, 1149-041 Lisboa, Portugal ,Projecto Delfim - Centro Português de Estudo dos Mamíferos Marinhos, Rua Jardim do Tabaco, 34, 1149-041 Lisboa, Portugal
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5
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Filatova OA. Independent acoustic variation of the higher- and lower-frequency components of biphonic calls can facilitate call recognition and social affiliation in killer whales. PLoS One 2020; 15:e0236749. [PMID: 32730308 PMCID: PMC7392277 DOI: 10.1371/journal.pone.0236749] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Accepted: 07/13/2020] [Indexed: 11/19/2022] Open
Abstract
Each resident-type (R-type) killer whale pod has a set of stereotyped calls that are culturally transmitted from mother to offspring. The functions of particular call types are not yet clearly understood, but it is believed that calls with two independently modulated frequency components (biphonic calls) play an important role in pod communication and cohesion at long ranges. In this study we examined the possible functions of biphonic calls in R-type killer whales. First, we tested the hypothesis that the additional component enhances the potential of a call to identify the family affiliation. We found that the similarity patterns of the lower- and higher frequency components across the families were largely unrelated. Calls were classified more accurately to their respective family when both lower- and higher-frequency components were considered. Second, we tested the long-range detectability of the lower- and higher-frequency components. After adjusting the received levels by the killer whale hearing sensitivity to different frequency ranges, the sensation level of the higher-frequency component was higher than the amplitude of the lower-frequency component. Our results suggest that the higher-frequency component of killer whale biphonic calls varies independently of the lower-frequency component, which enhances the efficiency of these calls as family markers. The acoustic variation of the higher-frequency component allows the recognition of family identity of a caller even if the shape of the lower-frequency component accidentally becomes similar in unrelated families. The higher-frequency component can also facilitate family recognition when the lower-frequency component is masked by low-frequency noise.
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Affiliation(s)
- Olga A. Filatova
- Department of Vertebrate Zoology, Faculty of Biology, Lomonosov Moscow State University, Moscow, Russia
- * E-mail:
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6
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Buscaino G, Mattiazzo G, Sannino G, Papale E, Bracco G, Grammauta R, Carillo A, Kenny JM, De Cristofaro N, Ceraulo M, Mazzola S. Acoustic impact of a wave energy converter in Mediterranean shallow waters. Sci Rep 2019; 9:9586. [PMID: 31270346 PMCID: PMC6610649 DOI: 10.1038/s41598-019-45926-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Accepted: 06/17/2019] [Indexed: 11/10/2022] Open
Abstract
In this study, underwater noise from a full-scale wave energy converter system (ISWEC), installed on the coast of Pantelleria Island (central Mediterranean Sea), was characterized. The noise was measured using an autonomous acoustic recorder anchored to the sea bottom 40 m from the ISWEC hull. Acoustic monitoring continued for 15 months, starting 7 months before (PRE), 2 months during (INST) and 6 months after the ISWEC installation (POST). The levels of noise, assessed with power spectrum density and octave and third-octave band sound pressure levels (BSPLs), were higher during the POST period than during the PRE period at lower frequencies up to 4 kHz and increased with wave height. During the ISWEC activation for energy production (POST_ON) in the wave height range 1–2.9 m, the BSPLs increased much more at lower frequencies up to 4 kHz (the median BSPLs at 63 Hz for the PRE, POST, and POST_ON conditions were 73, 106, and 126 dB re 1μPa, respectively). Considering the biophonies that make up the soundscape of the area, we examined the possible masking of fish choruses due to ISWEC noise and highlighted that at a distance of 1000 m, the 800 Hz peak frequency was 10 dB above the ISWEC signal. Within this distance from ISWEC, a possible masking effect is supposed.
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Affiliation(s)
- Giuseppa Buscaino
- National Research Council - Bioacousticslab Capo Granitola, Institute of Anthropic Impact and Sustainability in marine Environment, Via del Mare, 6 - 91021 Torretta Granitola, Campobello di Mazara, (TP), Italy.
| | - Giuliana Mattiazzo
- Department of Mechanical and Aerospace Engineering (DIMEAS), Politecnico di Torino, Corso Duca degli Abruzzi, 24, Torino, TO, Italy
| | - Gianmaria Sannino
- ENEA - Climate Modelling and Impacts Laboratory (SSPT-MET-CLIM), via Anguillarese 301, Roma, Italy
| | - Elena Papale
- National Research Council - Bioacousticslab Capo Granitola, Institute of Anthropic Impact and Sustainability in marine Environment, Via del Mare, 6 - 91021 Torretta Granitola, Campobello di Mazara, (TP), Italy.,Department of Life Sciences and Systems Biology, University of Torino, Via Accademia Albertina 13, 10123, Torino, Italy
| | - Giovanni Bracco
- Department of Mechanical and Aerospace Engineering (DIMEAS), Politecnico di Torino, Corso Duca degli Abruzzi, 24, Torino, TO, Italy
| | - Rosario Grammauta
- National Research Council - Bioacousticslab Capo Granitola, Institute of Anthropic Impact and Sustainability in marine Environment, Via del Mare, 6 - 91021 Torretta Granitola, Campobello di Mazara, (TP), Italy
| | - Adriana Carillo
- ENEA - Climate Modelling and Impacts Laboratory (SSPT-MET-CLIM), via Anguillarese 301, Roma, Italy
| | - Jose Maria Kenny
- University of Perugia, Civil and Environmental Engineering Department, UdR INSTM, Strada di Pentima, 4, Terni, Italy
| | | | - Maria Ceraulo
- National Research Council - Bioacousticslab Capo Granitola, Institute of Anthropic Impact and Sustainability in marine Environment, Via del Mare, 6 - 91021 Torretta Granitola, Campobello di Mazara, (TP), Italy
| | - Salvatore Mazzola
- National Research Council - Bioacousticslab Capo Granitola, Institute of Anthropic Impact and Sustainability in marine Environment, Via del Mare, 6 - 91021 Torretta Granitola, Campobello di Mazara, (TP), Italy
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7
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Jones B, Zapetis M, Samuelson MM, Ridgway S. Sounds produced by bottlenose dolphins (Tursiops): a review of the defining characteristics and acoustic criteria of the dolphin vocal repertoire. BIOACOUSTICS 2019. [DOI: 10.1080/09524622.2019.1613265] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Brittany Jones
- Sound and Health Department, National Marine Mammal Foundation, San Diego, CA, USA
| | - Maria Zapetis
- Sound and Health Department, National Marine Mammal Foundation, San Diego, CA, USA
| | - Mystera M. Samuelson
- Research and Stranding Department, The Institute for Marine Mammal Studies, Gulfport, MS, USA
| | - Sam Ridgway
- Sound and Health Department, National Marine Mammal Foundation, San Diego, CA, USA
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8
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Melo-Santos G, Figueiredo Rodrigues AL, Tardin RH, de Sá Maciel I, Marmontel M, Da Silva ML, May-Collado LJ. The newly described Araguaian river dolphins, Inia araguaiaensis (Cetartiodactyla, Iniidae), produce a diverse repertoire of acoustic signals. PeerJ 2019; 7:e6670. [PMID: 31041149 PMCID: PMC6476290 DOI: 10.7717/peerj.6670] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2018] [Accepted: 02/22/2019] [Indexed: 11/20/2022] Open
Abstract
The recent discovery of the Araguaian river dolphin (Inia araguaiaensis) highlights how little we know about the diversity and biology of river dolphins. In this study, we described the acoustic repertoire of this newly discovered species in concert with their behaviour. We analysed frequency contours of 727 signals (sampled at 10 ms temporal resolution). These contours were analyzed using an adaptive resonance theory neural network combined with dynamic time-warping (ARTwarp). Using a critical similarity value of 96%, frequency contours were categorized into 237 sound-types. The most common types were emitted when calves were present suggesting a key role in mother-calf communication. Our findings show that the acoustic repertoire of river dolphins is far from simple. Furthermore, the calls described here are similar in acoustic structure to those produced by social delphinids, such as orcas and pilot whales. Uncovering the context in which these signals are produced may help understand the social structure of this species and contribute to our understanding of the evolution of acoustic communication in whales.
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Affiliation(s)
- Gabriel Melo-Santos
- Sea Mammal Research Unit/Scottish Oceans Institute, University of St Andrews, St Andrews, Scotland, United Kingdom
- BioMA—Biology and Conservation of Amazonian Aquatic Mammals, Belém, Pará, Brazil
- Graduate program in Theory and Research of Behavior, Universidade Federal do Pará, Belém, Pará, Brazil
- Research Group on Amazonian Aquatic Mammals, Mamirauá Institute for Sustainable Development, Tefé, Amazonas, Brazil
- Laboratory of Ornithology and Bioacoustics, Universidade Federal do Pará, Belém, Pará, Brazil
| | - Angélica Lúcia Figueiredo Rodrigues
- BioMA—Biology and Conservation of Amazonian Aquatic Mammals, Belém, Pará, Brazil
- Graduate program in Theory and Research of Behavior, Universidade Federal do Pará, Belém, Pará, Brazil
| | - Rodrigo Hipólito Tardin
- Department of Ecology, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil
- Laboratory of Bioacoustics and Cetacean Ecology, Universidade Federal Rural do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Israel de Sá Maciel
- Laboratory of Bioacoustics and Cetacean Ecology, Universidade Federal Rural do Rio de Janeiro, Rio de Janeiro, Brazil
- Graduate Program in Animal Biology, Universidade Federal Rural do Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Miriam Marmontel
- Research Group on Amazonian Aquatic Mammals, Mamirauá Institute for Sustainable Development, Tefé, Amazonas, Brazil
| | - Maria Luisa Da Silva
- Graduate program in Theory and Research of Behavior, Universidade Federal do Pará, Belém, Pará, Brazil
- Laboratory of Ornithology and Bioacoustics, Universidade Federal do Pará, Belém, Pará, Brazil
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9
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Volodin IA, Matrosova VA, Frey R, Kozhevnikova JD, Isaeva IL, Volodina EV. Altai pika (Ochotona alpina) alarm calls: individual acoustic variation and the phenomenon of call-synchronous ear folding behavior. THE SCIENCE OF NATURE - NATURWISSENSCHAFTEN 2018; 105:40. [PMID: 29892847 DOI: 10.1007/s00114-018-1567-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2018] [Revised: 05/25/2018] [Accepted: 05/29/2018] [Indexed: 11/24/2022]
Abstract
Non-hibernating pikas collect winter food reserves and store them in hay piles. Individualization of alarm calls might allow discrimination between colony members and conspecifics trying to steal food items from a colony pile. We investigated vocal posture, vocal tract length, and individual acoustic variation of alarm calls, emitted by wild-living Altai pikas Ochotona alpina toward a researcher. Recording started when a pika started calling and lasted as long as possible. The alarm call series of 442 individual callers from different colonies consisted of discrete short (0.073-0.157 s), high-frequency (7.31-15.46 kHz), and frequency-modulated calls separated by irregular intervals. Analysis of 442 discrete calls, the second of each series, revealed that 44.34% calls lacked nonlinear phenomena, in 7.02% nonlinear phenomena covered less than half of call duration, and in 48.64% nonlinear phenomena covered more than half of call duration. Peak frequencies varied among individuals but always fitted one of three maxima corresponding to the vocal tract resonance frequencies (formants) calculated for an estimated 45-mm oral vocal tract. Discriminant analysis using variables of 8 calls per series of 36 different callers, each from a different colony, correctly assigned over 90% of the calls to individuals. Consequently, Altai pika alarm calls are individualistic and nonlinear phenomena might further increase this acoustic individualization. Additionally, video analysis revealed a call-synchronous, very fast (0.13-0.23 s) folding, depression, and subsequent re-expansion of the pinna confirming an earlier report of this behavior that apparently contributes to protecting the hearing apparatus from damage by the self-generated high-intensity alarm calls.
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Affiliation(s)
- Ilya A Volodin
- Department of Vertebrate Zoology, Faculty of Biology, Lomonosov Moscow State University, Vorobievy Gory, 12/1, Moscow, 119234, Russia. .,Scientific Research Department, Moscow Zoo, B. Gruzinskaya str., 1, Moscow, 123242, Russia.
| | - Vera A Matrosova
- Department of Structural and Functional Genomics, Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Vavilov str., 32, Moscow, 119991, Russia
| | - Roland Frey
- Department of Reproduction Management, Leibniz Institute for Zoo and Wildlife Research (IZW), Alfred-Kowalke-Str. 17, Berlin, Germany
| | - Julia D Kozhevnikova
- Department of Vertebrate Zoology, Faculty of Biology, Lomonosov Moscow State University, Vorobievy Gory, 12/1, Moscow, 119234, Russia
| | - Inna L Isaeva
- Scientific Research Department, Khakasskiy State Nature Reserve, Tsukanov str., 164, Abakan, 655017, Russia
| | - Elena V Volodina
- Scientific Research Department, Moscow Zoo, B. Gruzinskaya str., 1, Moscow, 123242, Russia
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10
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Kaplan JD, Melillo-Sweeting K, Reiss D. Biphonal calls in Atlantic spotted dolphins ( Stenella frontalis): bitonal and burst-pulse whistles. BIOACOUSTICS 2018. [DOI: 10.1080/09524622.2017.1300105] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- J. Daisy Kaplan
- The Graduate Center, City University of New York, New York, NY, USA
- Department of Psychology, St. Mary’s College of Maryland, St. Mary's City, MD, USA
| | | | - Diana Reiss
- The Graduate Center, City University of New York, New York, NY, USA
- Department of Psychology, Hunter College, City University of New York, New York, NY, USA
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11
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Sayigh LS, Wells RS, Janik VM. What's in a voice? Dolphins do not use voice cues for individual recognition. Anim Cogn 2017; 20:1067-1079. [PMID: 28791513 PMCID: PMC5640738 DOI: 10.1007/s10071-017-1123-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2016] [Revised: 07/14/2017] [Accepted: 07/28/2017] [Indexed: 12/04/2022]
Abstract
Most mammals can accomplish acoustic recognition of other individuals by means of “voice cues,” whereby characteristics of the vocal tract render vocalizations of an individual uniquely identifiable. However, sound production in dolphins takes place in gas-filled nasal sacs that are affected by pressure changes, potentially resulting in a lack of reliable voice cues. It is well known that bottlenose dolphins learn to produce individually distinctive signature whistles for individual recognition, but it is not known whether they may also use voice cues. To investigate this question, we played back non-signature whistles to wild dolphins during brief capture-release events in Sarasota Bay, Florida. We hypothesized that non-signature whistles, which have varied contours that can be shared among individuals, would be recognizable to dolphins only if they contained voice cues. Following established methodology used in two previous sets of playback experiments, we found that dolphins did not respond differentially to non-signature whistles of close relatives versus known unrelated individuals. In contrast, our previous studies showed that in an identical context, dolphins reacted strongly to hearing the signature whistle or even a synthetic version of the signature whistle of a close relative. Thus, we conclude that dolphins likely do not use voice cues to identify individuals. The low reliability of voice cues and the need for individual recognition were likely strong selective forces in the evolution of vocal learning in dolphins.
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Affiliation(s)
- Laela S Sayigh
- School of Cognitive Science, Hampshire College, Amherst, MA, 01002, USA. .,Biology Department, Woods Hole Oceanographic Institution, Woods Hole, MA, USA.
| | - Randall S Wells
- Chicago Zoological Society's Sarasota Dolphin Research Program, c/o Mote Marine Laboratory, Sarasota, FL, USA
| | - Vincent M Janik
- Scottish Oceans Institute, School of Biology, University of St. Andrews, St. Andrews, UK
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12
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Caruso F, Alonge G, Bellia G, De Domenico E, Grammauta R, Larosa G, Mazzola S, Riccobene G, Pavan G, Papale E, Pellegrino C, Pulvirenti S, Sciacca V, Simeone F, Speziale F, Viola S, Buscaino G. Long-Term Monitoring of Dolphin Biosonar Activity in Deep Pelagic Waters of the Mediterranean Sea. Sci Rep 2017; 7:4321. [PMID: 28659604 PMCID: PMC5489514 DOI: 10.1038/s41598-017-04608-6] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2016] [Accepted: 05/24/2017] [Indexed: 11/10/2022] Open
Abstract
Dolphins emit short ultrasonic pulses (clicks) to acquire information about the surrounding environment, prey and habitat features. We investigated Delphinidae activity over multiple temporal scales through the detection of their echolocation clicks, using long-term Passive Acoustic Monitoring (PAM). The Istituto Nazionale di Fisica Nucleare operates multidisciplinary seafloor observatories in a deep area of the Central Mediterranean Sea. The Ocean noise Detection Experiment collected data offshore the Gulf of Catania from January 2005 to November 2006, allowing the study of temporal patterns of dolphin activity in this deep pelagic zone for the first time. Nearly 5,500 five-minute recordings acquired over two years were examined using spectrogram analysis and through development and testing of an automatic detection algorithm. Echolocation activity of dolphins was mostly confined to nighttime and crepuscular hours, in contrast with communicative signals (whistles). Seasonal variation, with a peak number of clicks in August, was also evident, but no effect of lunar cycle was observed. Temporal trends in echolocation corresponded to environmental and trophic variability known in the deep pelagic waters of the Ionian Sea. Long-term PAM and the continued development of automatic analysis techniques are essential to advancing the study of pelagic marine mammal distribution and behaviour patterns.
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Affiliation(s)
- Francesco Caruso
- Bioacoustics Lab, IAMC Capo Granitola, National Research Council, Torretta Granitola (TP), Italy. .,Istituto Nazionale di Fisica Nucleare (INFN) - Laboratori Nazionali del Sud, Catania, Italy.
| | - Giuseppe Alonge
- ENEA - Observations and Analyses of Earth and Climate, Palermo, Italy
| | - Giorgio Bellia
- Dipartimento di Fisica ed Astronomia, University of Catania, Catania, Italy.,Istituto Nazionale di Fisica Nucleare (INFN) - Laboratori Nazionali del Sud, Catania, Italy
| | - Emilio De Domenico
- Dip. Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, University of Messina, Messina, Italy
| | - Rosario Grammauta
- Bioacoustics Lab, IAMC Capo Granitola, National Research Council, Torretta Granitola (TP), Italy
| | - Giuseppina Larosa
- Istituto Nazionale di Fisica Nucleare (INFN) - Laboratori Nazionali del Sud, Catania, Italy
| | - Salvatore Mazzola
- Bioacoustics Lab, IAMC Capo Granitola, National Research Council, Torretta Granitola (TP), Italy
| | - Giorgio Riccobene
- Istituto Nazionale di Fisica Nucleare (INFN) - Laboratori Nazionali del Sud, Catania, Italy
| | - Gianni Pavan
- Centro Interdisciplinare di Bioacustica e Ricerche Ambientali (CIBRA), Dipartimento di Scienze della Terra e dell'Ambiente, University of Pavia, Pavia, Italy
| | - Elena Papale
- Bioacoustics Lab, IAMC Capo Granitola, National Research Council, Torretta Granitola (TP), Italy
| | - Carmelo Pellegrino
- Istituto Nazionale di Fisica Nucleare (INFN) - Laboratori Nazionali del Sud, Catania, Italy.,Istituto Nazionale di Fisica Nucleare (INFN), Sezione di Bologna, Bologna, Italy
| | - Sara Pulvirenti
- Istituto Nazionale di Fisica Nucleare (INFN) - Laboratori Nazionali del Sud, Catania, Italy
| | - Virginia Sciacca
- Istituto Nazionale di Fisica Nucleare (INFN) - Laboratori Nazionali del Sud, Catania, Italy.,Dip. Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, University of Messina, Messina, Italy
| | - Francesco Simeone
- Istituto Nazionale di Fisica Nucleare (INFN), Sezione di Roma1, Roma, Italy
| | - Fabrizio Speziale
- Istituto Nazionale di Fisica Nucleare (INFN) - Laboratori Nazionali del Sud, Catania, Italy
| | - Salvatore Viola
- Istituto Nazionale di Fisica Nucleare (INFN) - Laboratori Nazionali del Sud, Catania, Italy
| | - Giuseppa Buscaino
- Bioacoustics Lab, IAMC Capo Granitola, National Research Council, Torretta Granitola (TP), Italy
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13
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Papale E, Ceraulo M, Giardino G, Buffa G, Filiciotto F, Grammauta R, Maccarrone V, Mazzola S, Buscaino G. Association patterns and population dynamics of bottlenose dolphins in the Strait of Sicily (Central Mediterranean Sea): implication for management. POPUL ECOL 2016. [DOI: 10.1007/s10144-016-0566-x] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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14
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Filatova OA, Samarra FIP, Barrett-Lennard LG, Miller PJO, Ford JKB, Yurk H, Matkin CO, Hoyt E. Physical constraints of cultural evolution of dialects in killer whales. THE JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA 2016; 140:3755. [PMID: 27908070 DOI: 10.1121/1.4967369] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Odontocete sounds are produced by two pairs of phonic lips situated in soft nares below the blowhole; the right pair is larger and is more likely to produce clicks, while the left pair is more likely to produce whistles. This has important implications for the cultural evolution of delphinid sounds: the greater the physical constraints, the greater the probability of random convergence. In this paper the authors examine the call structure of eight killer whale populations to identify structural constraints and to determine if they are consistent among all populations. Constraints were especially pronounced in two-voiced calls. In the calls of all eight populations, the lower component of two-voiced (biphonic) calls was typically centered below 4 kHz, while the upper component was typically above that value. The lower component of two-voiced calls had a narrower frequency range than single-voiced calls in all populations. This may be because some single-voiced calls are homologous to the lower component, while others are homologous to the higher component of two-voiced calls. Physical constraints on the call structure reduce the possible variation and increase the probability of random convergence, producing similar calls in different populations.
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Affiliation(s)
- Olga A Filatova
- Department of Vertebrate Zoology, Faculty of Biology, Moscow State University, Moscow 119991, Russia
| | - Filipa I P Samarra
- Marine and Freshwater Research Institute, Skúlagata 4, 101 Reykjavík, Iceland
| | | | - Patrick J O Miller
- Sea Mammal Research Unit, Scottish Oceans Institute, University of St. Andrews, St. Andrews, Fife KY168LB, Scotland
| | - John K B Ford
- Pacific Biological Station, Fisheries and Oceans Canada, 3190 Hammond Bay Road, Nanaimo, British Columbia V9T1K6, Canada
| | - Harald Yurk
- JASCO Research Ltd., 2305-4464 Markham Street, Victoria, British Columbia V8Z7X8, Canada
| | | | - Erich Hoyt
- Whale and Dolphin Conservation, Park House, Allington Park, Bridport, Dorset DT65DD, United Kingdom
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15
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Hiley HM, Perry S, Hartley S, King SL. What’s occurring? Ultrasonic signature whistle use in Welsh bottlenose dolphins (Tursiops truncatus). BIOACOUSTICS 2016. [DOI: 10.1080/09524622.2016.1174885] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Helen M. Hiley
- Cardigan Bay Marine Wildlife Centre, New Quay, UK
- Sea Mammal Research Unit, School of Biology, University of St Andrews, St Andrews, UK
| | - Sarah Perry
- Cardigan Bay Marine Wildlife Centre, New Quay, UK
| | | | - Stephanie L. King
- Cardigan Bay Marine Wildlife Centre, New Quay, UK
- Centre for Evolutionary Biology, School of Animal Biology (M092), University of Western Australia, Crawley, Australia
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