Vocalizations of male bearded seals, Erignathus barbatus: classification and geographical variation
Comparative studies of vocal repertoires over the geographical range of a species can improve our understanding of the function and evolution of animal vocalizations. They may also help to elucidate relationships between populations, where genetic studies are missing or difficult to perform. We reco...
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ftuhipublicatio:oai:pure.atira.dk:publications/32fb847e-f13d-4efc-9eec-9cc99c769263 2024-04-28T08:09:39+00:00 Vocalizations of male bearded seals, Erignathus barbatus: classification and geographical variation Risch, Denise Clark, Christopher W. Corkeron, Peter J. Elepfandt, Andreas Kovacs, Kit M. Lydersen, Christian Stirling, Ian Van Parijs, Sofie M. 2007-05 https://pure.uhi.ac.uk/en/publications/32fb847e-f13d-4efc-9eec-9cc99c769263 https://doi.org/10.1016/j.anbehav.2006.06.012 eng eng info:eu-repo/semantics/restrictedAccess Risch , D , Clark , C W , Corkeron , P J , Elepfandt , A , Kovacs , K M , Lydersen , C , Stirling , I & Van Parijs , SM 2007 , ' Vocalizations of male bearded seals, Erignathus barbatus: classification and geographical variation ' , Animal Behaviour , pp. 747-762 . https://doi.org/10.1016/j.anbehav.2006.06.012 Erignathus barbatus acoustic behaviour bearded seal geographical variation mating signal trill vocal repertoire article 2007 ftuhipublicatio https://doi.org/10.1016/j.anbehav.2006.06.012 2024-04-04T17:16:02Z Comparative studies of vocal repertoires over the geographical range of a species can improve our understanding of the function and evolution of animal vocalizations. They may also help to elucidate relationships between populations, where genetic studies are missing or difficult to perform. We recorded male bearded seal vocalizations from four sites throughout their Arctic distribution. We measured 16 parameters for each vocalization and examined variability using classification tree analyses. There were four major call categories: trill, ascent, sweep and moan. Trills divided further into three subcategories: trills with ascent/plume, long trills and short trills. Not all call categories were present at all sites: the ascent occurred only in Alaska and western Canada, the sweep occurred only in Svalbard and in the High Canadian Arctic, and the trill with ascent/plume occurred at all sites except Svalbard. Geographical differences between sites were apparent in repertoire size as well as in vocal structure. Furthermore, an east-west gradient in structural similarities between call types was apparent. The vocal repertoire of bearded seals seemed to be relatively stable; for example, over a period of 16 years no calls were lost or added to the Alaskan repertoire. The most likely explanation for the observed vocal differences between sites is the geographical isolation of populations by physical distance. Other factors, such as varying ecological influences (e.g. adaptation to varying ice habitats) or sexual selection, may also contribute to vocal variability and result in the observed geographical variation. ?? 2007 The Association for the Study of Animal Behaviour. Article in Journal/Newspaper Arctic bearded seal Erignathus barbatus Svalbard Alaska University of the Highlands and Islands: Research Database of UHI Animal Behaviour 73 5 747 762 |
institution |
Open Polar |
collection |
University of the Highlands and Islands: Research Database of UHI |
op_collection_id |
ftuhipublicatio |
language |
English |
topic |
Erignathus barbatus acoustic behaviour bearded seal geographical variation mating signal trill vocal repertoire |
spellingShingle |
Erignathus barbatus acoustic behaviour bearded seal geographical variation mating signal trill vocal repertoire Risch, Denise Clark, Christopher W. Corkeron, Peter J. Elepfandt, Andreas Kovacs, Kit M. Lydersen, Christian Stirling, Ian Van Parijs, Sofie M. Vocalizations of male bearded seals, Erignathus barbatus: classification and geographical variation |
topic_facet |
Erignathus barbatus acoustic behaviour bearded seal geographical variation mating signal trill vocal repertoire |
description |
Comparative studies of vocal repertoires over the geographical range of a species can improve our understanding of the function and evolution of animal vocalizations. They may also help to elucidate relationships between populations, where genetic studies are missing or difficult to perform. We recorded male bearded seal vocalizations from four sites throughout their Arctic distribution. We measured 16 parameters for each vocalization and examined variability using classification tree analyses. There were four major call categories: trill, ascent, sweep and moan. Trills divided further into three subcategories: trills with ascent/plume, long trills and short trills. Not all call categories were present at all sites: the ascent occurred only in Alaska and western Canada, the sweep occurred only in Svalbard and in the High Canadian Arctic, and the trill with ascent/plume occurred at all sites except Svalbard. Geographical differences between sites were apparent in repertoire size as well as in vocal structure. Furthermore, an east-west gradient in structural similarities between call types was apparent. The vocal repertoire of bearded seals seemed to be relatively stable; for example, over a period of 16 years no calls were lost or added to the Alaskan repertoire. The most likely explanation for the observed vocal differences between sites is the geographical isolation of populations by physical distance. Other factors, such as varying ecological influences (e.g. adaptation to varying ice habitats) or sexual selection, may also contribute to vocal variability and result in the observed geographical variation. ?? 2007 The Association for the Study of Animal Behaviour. |
format |
Article in Journal/Newspaper |
author |
Risch, Denise Clark, Christopher W. Corkeron, Peter J. Elepfandt, Andreas Kovacs, Kit M. Lydersen, Christian Stirling, Ian Van Parijs, Sofie M. |
author_facet |
Risch, Denise Clark, Christopher W. Corkeron, Peter J. Elepfandt, Andreas Kovacs, Kit M. Lydersen, Christian Stirling, Ian Van Parijs, Sofie M. |
author_sort |
Risch, Denise |
title |
Vocalizations of male bearded seals, Erignathus barbatus: classification and geographical variation |
title_short |
Vocalizations of male bearded seals, Erignathus barbatus: classification and geographical variation |
title_full |
Vocalizations of male bearded seals, Erignathus barbatus: classification and geographical variation |
title_fullStr |
Vocalizations of male bearded seals, Erignathus barbatus: classification and geographical variation |
title_full_unstemmed |
Vocalizations of male bearded seals, Erignathus barbatus: classification and geographical variation |
title_sort |
vocalizations of male bearded seals, erignathus barbatus: classification and geographical variation |
publishDate |
2007 |
url |
https://pure.uhi.ac.uk/en/publications/32fb847e-f13d-4efc-9eec-9cc99c769263 https://doi.org/10.1016/j.anbehav.2006.06.012 |
genre |
Arctic bearded seal Erignathus barbatus Svalbard Alaska |
genre_facet |
Arctic bearded seal Erignathus barbatus Svalbard Alaska |
op_source |
Risch , D , Clark , C W , Corkeron , P J , Elepfandt , A , Kovacs , K M , Lydersen , C , Stirling , I & Van Parijs , SM 2007 , ' Vocalizations of male bearded seals, Erignathus barbatus: classification and geographical variation ' , Animal Behaviour , pp. 747-762 . https://doi.org/10.1016/j.anbehav.2006.06.012 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1016/j.anbehav.2006.06.012 |
container_title |
Animal Behaviour |
container_volume |
73 |
container_issue |
5 |
container_start_page |
747 |
op_container_end_page |
762 |
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1797577925288001536 |