Bimodal winter haul-out patterns of adult Weddell seals (Leptonychotes weddellii) in the southern Weddell Sea
This research was funded by NERC grants NE/G014833/1 and NE/G014086/1 and also received funding from the MASTS pooling initiative (The Marine Alliance for Science and Technology for Scotland) and their support is gratefully acknowledged. MASTS is funded by the Scottish Funding Council (grant referen...
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ftstandrewserep:oai:research-repository.st-andrews.ac.uk:10023/8843 2023-07-02T03:29:42+02:00 Bimodal winter haul-out patterns of adult Weddell seals (Leptonychotes weddellii) in the southern Weddell Sea Boehme, Lars Baker, Amy Fedak, Mike Årthun, Marius Nicholls, Keith Robinson, Patrick Costa, Dan Biuw, Martin Photopoulou, Theoni NERC University of St Andrews. School of Biology University of St Andrews. Scottish Oceans Institute University of St Andrews. Marine Alliance for Science & Technology Scotland University of St Andrews. Sea Mammal Research Unit 2016-05-20T14:30:03Z 19 application/pdf http://hdl.handle.net/10023/8843 https://doi.org/10.1371/journal.pone.0155817 eng eng PLoS ONE Boehme , L , Baker , A , Fedak , M , Årthun , M , Nicholls , K , Robinson , P , Costa , D , Biuw , M & Photopoulou , T 2016 , ' Bimodal winter haul-out patterns of adult Weddell seals ( Leptonychotes weddellii ) in the southern Weddell Sea ' , PLoS ONE , vol. 11 , no. 5 , e0155817 . https://doi.org/10.1371/journal.pone.0155817 1932-6203 PURE: 21234252 PURE UUID: 01aa3d4b-bf79-49ea-be20-988ad0ca6345 Scopus: 84973661647 ORCID: /0000-0002-9569-1128/work/47136249 ORCID: /0000-0001-9616-9940/work/43456481 WOS: 000376291100105 http://hdl.handle.net/10023/8843 https://doi.org/10.1371/journal.pone.0155817 NE/G014833/1 © 2016 Boehme et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Seal Weddell sea Weddell seals Foraging behavior Antarctica Light Diving Haul-out QH301 Biology DAS BDC R2C QH301 Journal article 2016 ftstandrewserep https://doi.org/10.1371/journal.pone.0155817 2023-06-13T18:26:28Z This research was funded by NERC grants NE/G014833/1 and NE/G014086/1 and also received funding from the MASTS pooling initiative (The Marine Alliance for Science and Technology for Scotland) and their support is gratefully acknowledged. MASTS is funded by the Scottish Funding Council (grant reference HR09011) and contributing institutions. During the completion of the manuscript preparation TP was supported by a South African National Research Foundation Scarce Skills postdoctoral research fellowship. Hauling out is an essential component of pinniped life-history. Haul-out behaviour may be affected by biological (e.g. sex, age and condition) and physical factors (e.g. food availability and environmental conditions), and identifying these factors may help explain the spatiotemporal distribution and habitat use of pinnipeds. The aim of this study is to describe observed winter haul-out patterns of adult Weddell seals in the Weddell Sea and investigate the role of potential predictors to gain insight into the way these animals interact with the physical environment in this region. We examined the haul-out behaviour in relation to available biological (i.e., diving effort, sex) and physical information (i.e., sun angle). Thirty-three satellite telemetry tags were deployed on adult Weddell seals in the southern Weddell Sea during February 2007, 2009 and 2011, following their annual moult recording information on the behavioural mode f the animal: at surface, hauled out or diving. At the end of the austral summer Weddell seals spent, on average, more than 40% of their time hauled out on the ice. Under constant light conditions, it appears that physiological factors drive sex differences in the timing and duration of haul-out behaviour, with females spending on average more time hauled out than males during daylight hours. This time spent hauled-out declined to around 15% in both sexes by the beginning of autumn and remained at this level with a clear nocturnal haul-out pattern during the winter. The time spent ... Article in Journal/Newspaper Antarc* Antarctica Weddell Sea Weddell Seals University of St Andrews: Digital Research Repository Austral Weddell Weddell Sea PLOS ONE 11 5 e0155817 |
institution |
Open Polar |
collection |
University of St Andrews: Digital Research Repository |
op_collection_id |
ftstandrewserep |
language |
English |
topic |
Seal Weddell sea Weddell seals Foraging behavior Antarctica Light Diving Haul-out QH301 Biology DAS BDC R2C QH301 |
spellingShingle |
Seal Weddell sea Weddell seals Foraging behavior Antarctica Light Diving Haul-out QH301 Biology DAS BDC R2C QH301 Boehme, Lars Baker, Amy Fedak, Mike Årthun, Marius Nicholls, Keith Robinson, Patrick Costa, Dan Biuw, Martin Photopoulou, Theoni Bimodal winter haul-out patterns of adult Weddell seals (Leptonychotes weddellii) in the southern Weddell Sea |
topic_facet |
Seal Weddell sea Weddell seals Foraging behavior Antarctica Light Diving Haul-out QH301 Biology DAS BDC R2C QH301 |
description |
This research was funded by NERC grants NE/G014833/1 and NE/G014086/1 and also received funding from the MASTS pooling initiative (The Marine Alliance for Science and Technology for Scotland) and their support is gratefully acknowledged. MASTS is funded by the Scottish Funding Council (grant reference HR09011) and contributing institutions. During the completion of the manuscript preparation TP was supported by a South African National Research Foundation Scarce Skills postdoctoral research fellowship. Hauling out is an essential component of pinniped life-history. Haul-out behaviour may be affected by biological (e.g. sex, age and condition) and physical factors (e.g. food availability and environmental conditions), and identifying these factors may help explain the spatiotemporal distribution and habitat use of pinnipeds. The aim of this study is to describe observed winter haul-out patterns of adult Weddell seals in the Weddell Sea and investigate the role of potential predictors to gain insight into the way these animals interact with the physical environment in this region. We examined the haul-out behaviour in relation to available biological (i.e., diving effort, sex) and physical information (i.e., sun angle). Thirty-three satellite telemetry tags were deployed on adult Weddell seals in the southern Weddell Sea during February 2007, 2009 and 2011, following their annual moult recording information on the behavioural mode f the animal: at surface, hauled out or diving. At the end of the austral summer Weddell seals spent, on average, more than 40% of their time hauled out on the ice. Under constant light conditions, it appears that physiological factors drive sex differences in the timing and duration of haul-out behaviour, with females spending on average more time hauled out than males during daylight hours. This time spent hauled-out declined to around 15% in both sexes by the beginning of autumn and remained at this level with a clear nocturnal haul-out pattern during the winter. The time spent ... |
author2 |
NERC University of St Andrews. School of Biology University of St Andrews. Scottish Oceans Institute University of St Andrews. Marine Alliance for Science & Technology Scotland University of St Andrews. Sea Mammal Research Unit |
format |
Article in Journal/Newspaper |
author |
Boehme, Lars Baker, Amy Fedak, Mike Årthun, Marius Nicholls, Keith Robinson, Patrick Costa, Dan Biuw, Martin Photopoulou, Theoni |
author_facet |
Boehme, Lars Baker, Amy Fedak, Mike Årthun, Marius Nicholls, Keith Robinson, Patrick Costa, Dan Biuw, Martin Photopoulou, Theoni |
author_sort |
Boehme, Lars |
title |
Bimodal winter haul-out patterns of adult Weddell seals (Leptonychotes weddellii) in the southern Weddell Sea |
title_short |
Bimodal winter haul-out patterns of adult Weddell seals (Leptonychotes weddellii) in the southern Weddell Sea |
title_full |
Bimodal winter haul-out patterns of adult Weddell seals (Leptonychotes weddellii) in the southern Weddell Sea |
title_fullStr |
Bimodal winter haul-out patterns of adult Weddell seals (Leptonychotes weddellii) in the southern Weddell Sea |
title_full_unstemmed |
Bimodal winter haul-out patterns of adult Weddell seals (Leptonychotes weddellii) in the southern Weddell Sea |
title_sort |
bimodal winter haul-out patterns of adult weddell seals (leptonychotes weddellii) in the southern weddell sea |
publishDate |
2016 |
url |
http://hdl.handle.net/10023/8843 https://doi.org/10.1371/journal.pone.0155817 |
geographic |
Austral Weddell Weddell Sea |
geographic_facet |
Austral Weddell Weddell Sea |
genre |
Antarc* Antarctica Weddell Sea Weddell Seals |
genre_facet |
Antarc* Antarctica Weddell Sea Weddell Seals |
op_relation |
PLoS ONE Boehme , L , Baker , A , Fedak , M , Årthun , M , Nicholls , K , Robinson , P , Costa , D , Biuw , M & Photopoulou , T 2016 , ' Bimodal winter haul-out patterns of adult Weddell seals ( Leptonychotes weddellii ) in the southern Weddell Sea ' , PLoS ONE , vol. 11 , no. 5 , e0155817 . https://doi.org/10.1371/journal.pone.0155817 1932-6203 PURE: 21234252 PURE UUID: 01aa3d4b-bf79-49ea-be20-988ad0ca6345 Scopus: 84973661647 ORCID: /0000-0002-9569-1128/work/47136249 ORCID: /0000-0001-9616-9940/work/43456481 WOS: 000376291100105 http://hdl.handle.net/10023/8843 https://doi.org/10.1371/journal.pone.0155817 NE/G014833/1 |
op_rights |
© 2016 Boehme et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
op_doi |
https://doi.org/10.1371/journal.pone.0155817 |
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PLOS ONE |
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