Beluga whale ( Delphinapterus leucas ) vocalizations and call classification from the eastern Beaufort Sea population
Beluga whales, Delphinapterus leucas , have a graded call system; call types exist on a continuum making classification challenging. A description of vocalizations from the eastern Beaufort Sea beluga population during its spring migration are presented here, using both a non-parametric clas- sifica...
Published in: | The Journal of the Acoustical Society of America |
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Online Access: | https://risweb.st-andrews.ac.uk/portal/en/researchoutput/beluga-whale-delphinapterus-leucas-vocalizations-and-call-classification-from-the-eastern-beaufort-sea-population(9dd8270a-aa7f-4354-94ad-bae927cb4b48).html https://doi.org/10.1121/1.4919338 https://research-repository.st-andrews.ac.uk/bitstream/10023/7874/1/garland2015jacousticsocam3054.pdf |
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ftunstandrewcris:oai:risweb.st-andrews.ac.uk:publications/9dd8270a-aa7f-4354-94ad-bae927cb4b48 2023-05-15T15:40:13+02:00 Beluga whale ( Delphinapterus leucas ) vocalizations and call classification from the eastern Beaufort Sea population Garland, Ellen Clare Castellote, Manuel Berchok, Catherine 2015-06 application/pdf https://risweb.st-andrews.ac.uk/portal/en/researchoutput/beluga-whale-delphinapterus-leucas-vocalizations-and-call-classification-from-the-eastern-beaufort-sea-population(9dd8270a-aa7f-4354-94ad-bae927cb4b48).html https://doi.org/10.1121/1.4919338 https://research-repository.st-andrews.ac.uk/bitstream/10023/7874/1/garland2015jacousticsocam3054.pdf eng eng info:eu-repo/semantics/openAccess Garland , E C , Castellote , M & Berchok , C 2015 , ' Beluga whale ( Delphinapterus leucas ) vocalizations and call classification from the eastern Beaufort Sea population ' , Journal of the Acoustical Society of America , vol. 137 , no. 6 , pp. 3054-3067 . https://doi.org/10.1121/1.4919338 article 2015 ftunstandrewcris https://doi.org/10.1121/1.4919338 2021-12-26T14:26:36Z Beluga whales, Delphinapterus leucas , have a graded call system; call types exist on a continuum making classification challenging. A description of vocalizations from the eastern Beaufort Sea beluga population during its spring migration are presented here, using both a non-parametric clas- sification tree analysis (CART), and a Random Forest analysis. Twelve frequency and duration measurements were made on 1019 calls recorded over 14 days off Icy Cape, Alaska, resulting in 34 identifiable call types with 83% agreement in classification for both CART and Random Forest analyses. This high level of agreement in classification, with an initial subjective classification of calls into 36 categories, demonstrates that the methods applied here provide a quantitative analysis of a graded call dataset. Further, as calls cannot be attributed to individuals using single sensor pas- sive acoustic monitoring efforts, these methods provide a comprehensive analysis of data where the influence of pseudo-replication of calls from individuals is unknown. This study is the first to describe the vocal repertoire of a beluga population using a robust and repeatable methodology. A baseline eastern Beaufort Sea beluga population repertoire is presented here, against which the call repertoire of other seasonally sympatric Alaskan beluga populations can be compared. Article in Journal/Newspaper Beaufort Sea Beluga Beluga whale Beluga* Delphinapterus leucas Alaska University of St Andrews: Research Portal The Journal of the Acoustical Society of America 137 6 3054 3067 |
institution |
Open Polar |
collection |
University of St Andrews: Research Portal |
op_collection_id |
ftunstandrewcris |
language |
English |
description |
Beluga whales, Delphinapterus leucas , have a graded call system; call types exist on a continuum making classification challenging. A description of vocalizations from the eastern Beaufort Sea beluga population during its spring migration are presented here, using both a non-parametric clas- sification tree analysis (CART), and a Random Forest analysis. Twelve frequency and duration measurements were made on 1019 calls recorded over 14 days off Icy Cape, Alaska, resulting in 34 identifiable call types with 83% agreement in classification for both CART and Random Forest analyses. This high level of agreement in classification, with an initial subjective classification of calls into 36 categories, demonstrates that the methods applied here provide a quantitative analysis of a graded call dataset. Further, as calls cannot be attributed to individuals using single sensor pas- sive acoustic monitoring efforts, these methods provide a comprehensive analysis of data where the influence of pseudo-replication of calls from individuals is unknown. This study is the first to describe the vocal repertoire of a beluga population using a robust and repeatable methodology. A baseline eastern Beaufort Sea beluga population repertoire is presented here, against which the call repertoire of other seasonally sympatric Alaskan beluga populations can be compared. |
format |
Article in Journal/Newspaper |
author |
Garland, Ellen Clare Castellote, Manuel Berchok, Catherine |
spellingShingle |
Garland, Ellen Clare Castellote, Manuel Berchok, Catherine Beluga whale ( Delphinapterus leucas ) vocalizations and call classification from the eastern Beaufort Sea population |
author_facet |
Garland, Ellen Clare Castellote, Manuel Berchok, Catherine |
author_sort |
Garland, Ellen Clare |
title |
Beluga whale ( Delphinapterus leucas ) vocalizations and call classification from the eastern Beaufort Sea population |
title_short |
Beluga whale ( Delphinapterus leucas ) vocalizations and call classification from the eastern Beaufort Sea population |
title_full |
Beluga whale ( Delphinapterus leucas ) vocalizations and call classification from the eastern Beaufort Sea population |
title_fullStr |
Beluga whale ( Delphinapterus leucas ) vocalizations and call classification from the eastern Beaufort Sea population |
title_full_unstemmed |
Beluga whale ( Delphinapterus leucas ) vocalizations and call classification from the eastern Beaufort Sea population |
title_sort |
beluga whale ( delphinapterus leucas ) vocalizations and call classification from the eastern beaufort sea population |
publishDate |
2015 |
url |
https://risweb.st-andrews.ac.uk/portal/en/researchoutput/beluga-whale-delphinapterus-leucas-vocalizations-and-call-classification-from-the-eastern-beaufort-sea-population(9dd8270a-aa7f-4354-94ad-bae927cb4b48).html https://doi.org/10.1121/1.4919338 https://research-repository.st-andrews.ac.uk/bitstream/10023/7874/1/garland2015jacousticsocam3054.pdf |
genre |
Beaufort Sea Beluga Beluga whale Beluga* Delphinapterus leucas Alaska |
genre_facet |
Beaufort Sea Beluga Beluga whale Beluga* Delphinapterus leucas Alaska |
op_source |
Garland , E C , Castellote , M & Berchok , C 2015 , ' Beluga whale ( Delphinapterus leucas ) vocalizations and call classification from the eastern Beaufort Sea population ' , Journal of the Acoustical Society of America , vol. 137 , no. 6 , pp. 3054-3067 . https://doi.org/10.1121/1.4919338 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1121/1.4919338 |
container_title |
The Journal of the Acoustical Society of America |
container_volume |
137 |
container_issue |
6 |
container_start_page |
3054 |
op_container_end_page |
3067 |
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1766372359413956608 |