Hydrographic influences on the summer dive behaviour of Weddell seals (Leptonychotes weddellii) in Atka Bay, Antarctica
In order to gain insights into species-level behavioural responses to the physical environment, it is necessary to obtain information from various populations and at all times of year. We analysed the influences of physical environmental parameters on the mid-summer dive behaviour of Weddell seals (...
Published in: | Polar Biology |
---|---|
Main Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | unknown |
Published: |
SPRINGER
2013
|
Subjects: | |
Online Access: | https://epic.awi.de/id/eprint/33492/ https://epic.awi.de/id/eprint/33492/1/McIntyre-etal_2013a.pdf https://hdl.handle.net/10013/epic.41973 https://hdl.handle.net/10013/epic.41973.d001 |
id |
ftawi:oai:epic.awi.de:33492 |
---|---|
record_format |
openpolar |
spelling |
ftawi:oai:epic.awi.de:33492 2023-05-15T13:40:26+02:00 Hydrographic influences on the summer dive behaviour of Weddell seals (Leptonychotes weddellii) in Atka Bay, Antarctica McIntyre, Trevor Stansfield, L. Bornemann, Horst Plötz, Joachim Bester, Marthán. N. 2013 application/pdf https://epic.awi.de/id/eprint/33492/ https://epic.awi.de/id/eprint/33492/1/McIntyre-etal_2013a.pdf https://hdl.handle.net/10013/epic.41973 https://hdl.handle.net/10013/epic.41973.d001 unknown SPRINGER https://epic.awi.de/id/eprint/33492/1/McIntyre-etal_2013a.pdf https://hdl.handle.net/10013/epic.41973.d001 McIntyre, T. , Stansfield, L. , Bornemann, H. , Plötz, J. and Bester, M. N. (2013) Hydrographic influences on the summer dive behaviour of Weddell seals (Leptonychotes weddellii) in Atka Bay, Antarctica , Polar Biology . doi:10.1007/s00300-013-1384-7 <https://doi.org/10.1007/s00300-013-1384-7> , hdl:10013/epic.41973 EPIC3Polar Biology, SPRINGER, ISSN: 0722-4060 Article isiRev 2013 ftawi https://doi.org/10.1007/s00300-013-1384-7 2021-12-24T15:38:48Z In order to gain insights into species-level behavioural responses to the physical environment, it is necessary to obtain information from various populations and at all times of year. We analysed the influences of physical environmental parameters on the mid-summer dive behaviour of Weddell seals (Leptonychotes weddellii) from a little-known population at Atka Bay, Antarctica. Dive depth distributions followed a typical bimodal pattern also exhibited by seals from other populations and seals targeted both shallow water layers of less than 50 m and depths near the seafloor. Increased stratification of temperature layers within the water column resulted in increased forage efforts by the seals through relatively high numbers of dives to the seafloor, as well as forage effort associated with shallow dives. We interpret these behavioural responses to be due to increased water temperature stratification resulting in the concentration of prey species in particular depth layers. Article in Journal/Newspaper Antarc* Antarctica Polar Biology Weddell Seals Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Atka ENVELOPE(151.789,151.789,60.835,60.835) Weddell Polar Biology 36 11 1693 1700 |
institution |
Open Polar |
collection |
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
description |
In order to gain insights into species-level behavioural responses to the physical environment, it is necessary to obtain information from various populations and at all times of year. We analysed the influences of physical environmental parameters on the mid-summer dive behaviour of Weddell seals (Leptonychotes weddellii) from a little-known population at Atka Bay, Antarctica. Dive depth distributions followed a typical bimodal pattern also exhibited by seals from other populations and seals targeted both shallow water layers of less than 50 m and depths near the seafloor. Increased stratification of temperature layers within the water column resulted in increased forage efforts by the seals through relatively high numbers of dives to the seafloor, as well as forage effort associated with shallow dives. We interpret these behavioural responses to be due to increased water temperature stratification resulting in the concentration of prey species in particular depth layers. |
format |
Article in Journal/Newspaper |
author |
McIntyre, Trevor Stansfield, L. Bornemann, Horst Plötz, Joachim Bester, Marthán. N. |
spellingShingle |
McIntyre, Trevor Stansfield, L. Bornemann, Horst Plötz, Joachim Bester, Marthán. N. Hydrographic influences on the summer dive behaviour of Weddell seals (Leptonychotes weddellii) in Atka Bay, Antarctica |
author_facet |
McIntyre, Trevor Stansfield, L. Bornemann, Horst Plötz, Joachim Bester, Marthán. N. |
author_sort |
McIntyre, Trevor |
title |
Hydrographic influences on the summer dive behaviour of Weddell seals (Leptonychotes weddellii) in Atka Bay, Antarctica |
title_short |
Hydrographic influences on the summer dive behaviour of Weddell seals (Leptonychotes weddellii) in Atka Bay, Antarctica |
title_full |
Hydrographic influences on the summer dive behaviour of Weddell seals (Leptonychotes weddellii) in Atka Bay, Antarctica |
title_fullStr |
Hydrographic influences on the summer dive behaviour of Weddell seals (Leptonychotes weddellii) in Atka Bay, Antarctica |
title_full_unstemmed |
Hydrographic influences on the summer dive behaviour of Weddell seals (Leptonychotes weddellii) in Atka Bay, Antarctica |
title_sort |
hydrographic influences on the summer dive behaviour of weddell seals (leptonychotes weddellii) in atka bay, antarctica |
publisher |
SPRINGER |
publishDate |
2013 |
url |
https://epic.awi.de/id/eprint/33492/ https://epic.awi.de/id/eprint/33492/1/McIntyre-etal_2013a.pdf https://hdl.handle.net/10013/epic.41973 https://hdl.handle.net/10013/epic.41973.d001 |
long_lat |
ENVELOPE(151.789,151.789,60.835,60.835) |
geographic |
Atka Weddell |
geographic_facet |
Atka Weddell |
genre |
Antarc* Antarctica Polar Biology Weddell Seals |
genre_facet |
Antarc* Antarctica Polar Biology Weddell Seals |
op_source |
EPIC3Polar Biology, SPRINGER, ISSN: 0722-4060 |
op_relation |
https://epic.awi.de/id/eprint/33492/1/McIntyre-etal_2013a.pdf https://hdl.handle.net/10013/epic.41973.d001 McIntyre, T. , Stansfield, L. , Bornemann, H. , Plötz, J. and Bester, M. N. (2013) Hydrographic influences on the summer dive behaviour of Weddell seals (Leptonychotes weddellii) in Atka Bay, Antarctica , Polar Biology . doi:10.1007/s00300-013-1384-7 <https://doi.org/10.1007/s00300-013-1384-7> , hdl:10013/epic.41973 |
op_doi |
https://doi.org/10.1007/s00300-013-1384-7 |
container_title |
Polar Biology |
container_volume |
36 |
container_issue |
11 |
container_start_page |
1693 |
op_container_end_page |
1700 |
_version_ |
1766133575698087936 |