Behavioural ontogeny of bearded seals Erignathus barbatus through the first year of life
Funding was provided by the Norwegian Research Council (MARE programme, grant number 164940). C.D.H. was funded by the Norwegian Polar Institute’s Centre for Ice, Climate and Ecosystems. Pinniped pups face special ontogenetic challenges as they are born and receive maternal care on solid substrates...
Published in: | Marine Ecology Progress Series |
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Online Access: | http://hdl.handle.net/10023/18636 https://doi.org/10.3354/meps13072 |
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ftstandrewserep:oai:research-repository.st-andrews.ac.uk:10023/18636 2023-07-02T03:31:48+02:00 Behavioural ontogeny of bearded seals Erignathus barbatus through the first year of life Hamilton, Charmain D. Lydersen, Christian Fedak, Mike A. Freitas, Carla Hindell, Mark A. Kovacs, Kit M. University of St Andrews. Sea Mammal Research Unit University of St Andrews. Scottish Oceans Institute University of St Andrews. School of Biology 2019-10-10T10:30:01Z 16 application/pdf http://hdl.handle.net/10023/18636 https://doi.org/10.3354/meps13072 eng eng Marine Ecology Progress Series Hamilton , C D , Lydersen , C , Fedak , M A , Freitas , C , Hindell , M A & Kovacs , K M 2019 , ' Behavioural ontogeny of bearded seals Erignathus barbatus through the first year of life ' , Marine Ecology Progress Series , vol. 627 , pp. 179-194 . https://doi.org/10.3354/meps13072 0171-8630 PURE: 259674251 PURE UUID: f0b0cfa4-e84f-479d-bb9c-3e1c93dfa8c1 ORCID: /0000-0002-9569-1128/work/59698720 Scopus: 85072726556 WOS: 000521165900014 http://hdl.handle.net/10023/18636 https://doi.org/10.3354/meps13072 Copyright © The authors 2019. Open Access under Creative Commons by Attribution Licence. Use, distribution and reproduction are unrestricted. Authors and original publication must be credited. Diving development Pinniped development Phocid seals Svalbard QH301 Biology NDAS SDG 14 - Life Below Water QH301 Journal article 2019 ftstandrewserep https://doi.org/10.3354/meps13072 2023-06-13T18:26:00Z Funding was provided by the Norwegian Research Council (MARE programme, grant number 164940). C.D.H. was funded by the Norwegian Polar Institute’s Centre for Ice, Climate and Ecosystems. Pinniped pups face special ontogenetic challenges as they are born and receive maternal care on solid substrates (land or ice) but must transition to feeding aquatically following weaning. In this study, Satellite Relay Data Loggers were used to study behavioural ontogeny of bearded seal Erignathus barbatus pups (n = 13) through their first year in Svalbard, Norway. Pups occupied shallow, coastal habitats and were found in areas with intermediate ice concentrations (in seasons with sea ice - late-autumn/winter). Most pups showed exploratory movement patterns that peaked in the weeks following weaning; maximum home range size occurred at 31 to 60 days of age. Thereafter, home range size decreased with pups settling into areas along the coast. Time spent diving, dive duration, dive depth and time at the bottom of dives increased during the first weeks of independence, stabilizing when pups were ~50 d old. Dive depth subsequently decreased to depths comparable to adult bearded seals (by the time pups were ~175 d old). Record maximum dive depth (368 m) and duration (16.5 min) were performed by pups that were 66 and 224 d old, respectively. Time spent hauled out decreased after weaning, with pups hauling out only sporadically after they were 75 d old. Bearded seals pups seem to be physiologically and behaviourally well developed by the time they are two months old. Pups did not display the individually specialized diving behaviour seen in adults, which suggests that they continue to fine-tune their aquatic and other life-skills well past the end of the first year of life. Publisher PDF Peer reviewed Article in Journal/Newspaper bearded seal Erignathus barbatus Sea ice Svalbard University of St Andrews: Digital Research Repository Norway Svalbard Marine Ecology Progress Series 627 179 194 |
institution |
Open Polar |
collection |
University of St Andrews: Digital Research Repository |
op_collection_id |
ftstandrewserep |
language |
English |
topic |
Diving development Pinniped development Phocid seals Svalbard QH301 Biology NDAS SDG 14 - Life Below Water QH301 |
spellingShingle |
Diving development Pinniped development Phocid seals Svalbard QH301 Biology NDAS SDG 14 - Life Below Water QH301 Hamilton, Charmain D. Lydersen, Christian Fedak, Mike A. Freitas, Carla Hindell, Mark A. Kovacs, Kit M. Behavioural ontogeny of bearded seals Erignathus barbatus through the first year of life |
topic_facet |
Diving development Pinniped development Phocid seals Svalbard QH301 Biology NDAS SDG 14 - Life Below Water QH301 |
description |
Funding was provided by the Norwegian Research Council (MARE programme, grant number 164940). C.D.H. was funded by the Norwegian Polar Institute’s Centre for Ice, Climate and Ecosystems. Pinniped pups face special ontogenetic challenges as they are born and receive maternal care on solid substrates (land or ice) but must transition to feeding aquatically following weaning. In this study, Satellite Relay Data Loggers were used to study behavioural ontogeny of bearded seal Erignathus barbatus pups (n = 13) through their first year in Svalbard, Norway. Pups occupied shallow, coastal habitats and were found in areas with intermediate ice concentrations (in seasons with sea ice - late-autumn/winter). Most pups showed exploratory movement patterns that peaked in the weeks following weaning; maximum home range size occurred at 31 to 60 days of age. Thereafter, home range size decreased with pups settling into areas along the coast. Time spent diving, dive duration, dive depth and time at the bottom of dives increased during the first weeks of independence, stabilizing when pups were ~50 d old. Dive depth subsequently decreased to depths comparable to adult bearded seals (by the time pups were ~175 d old). Record maximum dive depth (368 m) and duration (16.5 min) were performed by pups that were 66 and 224 d old, respectively. Time spent hauled out decreased after weaning, with pups hauling out only sporadically after they were 75 d old. Bearded seals pups seem to be physiologically and behaviourally well developed by the time they are two months old. Pups did not display the individually specialized diving behaviour seen in adults, which suggests that they continue to fine-tune their aquatic and other life-skills well past the end of the first year of life. Publisher PDF Peer reviewed |
author2 |
University of St Andrews. Sea Mammal Research Unit University of St Andrews. Scottish Oceans Institute University of St Andrews. School of Biology |
format |
Article in Journal/Newspaper |
author |
Hamilton, Charmain D. Lydersen, Christian Fedak, Mike A. Freitas, Carla Hindell, Mark A. Kovacs, Kit M. |
author_facet |
Hamilton, Charmain D. Lydersen, Christian Fedak, Mike A. Freitas, Carla Hindell, Mark A. Kovacs, Kit M. |
author_sort |
Hamilton, Charmain D. |
title |
Behavioural ontogeny of bearded seals Erignathus barbatus through the first year of life |
title_short |
Behavioural ontogeny of bearded seals Erignathus barbatus through the first year of life |
title_full |
Behavioural ontogeny of bearded seals Erignathus barbatus through the first year of life |
title_fullStr |
Behavioural ontogeny of bearded seals Erignathus barbatus through the first year of life |
title_full_unstemmed |
Behavioural ontogeny of bearded seals Erignathus barbatus through the first year of life |
title_sort |
behavioural ontogeny of bearded seals erignathus barbatus through the first year of life |
publishDate |
2019 |
url |
http://hdl.handle.net/10023/18636 https://doi.org/10.3354/meps13072 |
geographic |
Norway Svalbard |
geographic_facet |
Norway Svalbard |
genre |
bearded seal Erignathus barbatus Sea ice Svalbard |
genre_facet |
bearded seal Erignathus barbatus Sea ice Svalbard |
op_relation |
Marine Ecology Progress Series Hamilton , C D , Lydersen , C , Fedak , M A , Freitas , C , Hindell , M A & Kovacs , K M 2019 , ' Behavioural ontogeny of bearded seals Erignathus barbatus through the first year of life ' , Marine Ecology Progress Series , vol. 627 , pp. 179-194 . https://doi.org/10.3354/meps13072 0171-8630 PURE: 259674251 PURE UUID: f0b0cfa4-e84f-479d-bb9c-3e1c93dfa8c1 ORCID: /0000-0002-9569-1128/work/59698720 Scopus: 85072726556 WOS: 000521165900014 http://hdl.handle.net/10023/18636 https://doi.org/10.3354/meps13072 |
op_rights |
Copyright © The authors 2019. Open Access under Creative Commons by Attribution Licence. Use, distribution and reproduction are unrestricted. Authors and original publication must be credited. |
op_doi |
https://doi.org/10.3354/meps13072 |
container_title |
Marine Ecology Progress Series |
container_volume |
627 |
container_start_page |
179 |
op_container_end_page |
194 |
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1770271220852326400 |