Factors influencing the winter haulout behaviour of Weddell seals: consequences for satellite telemetry
An understanding of pinniped haulout behaviour can provide information on how animals interact with their environment, their foraging strategies and the behaviour of their prey. For Weddell seals Leptonychotes weddelli, knowledge of haulout patterns and the environmental drivers of haulout is compre...
Published in: | Endangered Species Research |
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Oldendorf/Luhe : Inter-Research
2010
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Online Access: | https://oskar-bordeaux.fr/handle/20.500.12278/39440 https://doi.org/10.3354/esr00257 |
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ftoskarbordeaux:oai:oskar-bordeaux.fr:20.500.12278/39440 2023-05-15T13:46:14+02:00 Factors influencing the winter haulout behaviour of Weddell seals: consequences for satellite telemetry ANDREWS-GOFF, Virginia HINDELL, Mark A. FIELD, Ian Craig WHEATLEY, Kathryn CHARRASSIN, Jean-Benoit 2010-03-03 https://oskar-bordeaux.fr/handle/20.500.12278/39440 https://doi.org/10.3354/esr00257 en eng Oldendorf/Luhe : Inter-Research 1863-5407 https://oskar-bordeaux.fr/handle/20.500.12278/39440 doi:10.3354/esr00257 http://creativecommons.org/licenses/by/ Weddell seal Haulout Winter Satellite telemetry Physique [physics]/Physique [physics]/Géophysique [physics.geo-ph] Article de revue 2010 ftoskarbordeaux https://doi.org/10.3354/esr00257 2021-05-11T22:30:10Z An understanding of pinniped haulout behaviour can provide information on how animals interact with their environment, their foraging strategies and the behaviour of their prey. For Weddell seals Leptonychotes weddelli, knowledge of haulout patterns and the environmental drivers of haulout is comprehensive for the austral spring and summer, but is poorly described outside this period. Pinniped behaviour is commonly examined using satellite telemetry; however, it is unclear whether the behavioural state of the seal can itself influence data acquisition. We examined haulout behaviour of female Weddell seals in eastern Antarctica over 3 winters (March to August, 2006–2008) using satellite-linked data loggers. Haulout behaviour followed a diel cycle with predominantly nocturnal haulouts. The environmental variables wind speed and temperature were influential on haulout, with seals tending to haul out more in lower winds and at higher temperatures. Haulout duration decreased across the winter, as did the number of satellite uplinks, suggesting that haulout duration played a role in data acquisition. There was no evidence of a decline in tag condition over this period, indicating that the decrease in uplinks was primarily the result of the winter behaviour of the seals. Overall, the number of haulout locations in the data set was over-represented, with more uplinks per hour occurring when the seals were hauled out than when they were at sea. For Weddell seals and other ice seals, tracking data that include haulout locations can bias spatial representations of foraging behaviour (e.g. haulout sites may be mistaken for regions of area-restricted search). Other/Unknown Material Antarc* Antarctica Leptonychotes weddelli Weddell Seal Weddell Seals OSKAR Bordeaux (Open Science Knowledge ARchive) Austral Weddell Endangered Species Research 10 83 92 |
institution |
Open Polar |
collection |
OSKAR Bordeaux (Open Science Knowledge ARchive) |
op_collection_id |
ftoskarbordeaux |
language |
English |
topic |
Weddell seal Haulout Winter Satellite telemetry Physique [physics]/Physique [physics]/Géophysique [physics.geo-ph] |
spellingShingle |
Weddell seal Haulout Winter Satellite telemetry Physique [physics]/Physique [physics]/Géophysique [physics.geo-ph] ANDREWS-GOFF, Virginia HINDELL, Mark A. FIELD, Ian Craig WHEATLEY, Kathryn CHARRASSIN, Jean-Benoit Factors influencing the winter haulout behaviour of Weddell seals: consequences for satellite telemetry |
topic_facet |
Weddell seal Haulout Winter Satellite telemetry Physique [physics]/Physique [physics]/Géophysique [physics.geo-ph] |
description |
An understanding of pinniped haulout behaviour can provide information on how animals interact with their environment, their foraging strategies and the behaviour of their prey. For Weddell seals Leptonychotes weddelli, knowledge of haulout patterns and the environmental drivers of haulout is comprehensive for the austral spring and summer, but is poorly described outside this period. Pinniped behaviour is commonly examined using satellite telemetry; however, it is unclear whether the behavioural state of the seal can itself influence data acquisition. We examined haulout behaviour of female Weddell seals in eastern Antarctica over 3 winters (March to August, 2006–2008) using satellite-linked data loggers. Haulout behaviour followed a diel cycle with predominantly nocturnal haulouts. The environmental variables wind speed and temperature were influential on haulout, with seals tending to haul out more in lower winds and at higher temperatures. Haulout duration decreased across the winter, as did the number of satellite uplinks, suggesting that haulout duration played a role in data acquisition. There was no evidence of a decline in tag condition over this period, indicating that the decrease in uplinks was primarily the result of the winter behaviour of the seals. Overall, the number of haulout locations in the data set was over-represented, with more uplinks per hour occurring when the seals were hauled out than when they were at sea. For Weddell seals and other ice seals, tracking data that include haulout locations can bias spatial representations of foraging behaviour (e.g. haulout sites may be mistaken for regions of area-restricted search). |
format |
Other/Unknown Material |
author |
ANDREWS-GOFF, Virginia HINDELL, Mark A. FIELD, Ian Craig WHEATLEY, Kathryn CHARRASSIN, Jean-Benoit |
author_facet |
ANDREWS-GOFF, Virginia HINDELL, Mark A. FIELD, Ian Craig WHEATLEY, Kathryn CHARRASSIN, Jean-Benoit |
author_sort |
ANDREWS-GOFF, Virginia |
title |
Factors influencing the winter haulout behaviour of Weddell seals: consequences for satellite telemetry |
title_short |
Factors influencing the winter haulout behaviour of Weddell seals: consequences for satellite telemetry |
title_full |
Factors influencing the winter haulout behaviour of Weddell seals: consequences for satellite telemetry |
title_fullStr |
Factors influencing the winter haulout behaviour of Weddell seals: consequences for satellite telemetry |
title_full_unstemmed |
Factors influencing the winter haulout behaviour of Weddell seals: consequences for satellite telemetry |
title_sort |
factors influencing the winter haulout behaviour of weddell seals: consequences for satellite telemetry |
publisher |
Oldendorf/Luhe : Inter-Research |
publishDate |
2010 |
url |
https://oskar-bordeaux.fr/handle/20.500.12278/39440 https://doi.org/10.3354/esr00257 |
geographic |
Austral Weddell |
geographic_facet |
Austral Weddell |
genre |
Antarc* Antarctica Leptonychotes weddelli Weddell Seal Weddell Seals |
genre_facet |
Antarc* Antarctica Leptonychotes weddelli Weddell Seal Weddell Seals |
op_relation |
1863-5407 https://oskar-bordeaux.fr/handle/20.500.12278/39440 doi:10.3354/esr00257 |
op_rights |
http://creativecommons.org/licenses/by/ |
op_doi |
https://doi.org/10.3354/esr00257 |
container_title |
Endangered Species Research |
container_volume |
10 |
container_start_page |
83 |
op_container_end_page |
92 |
_version_ |
1766238816840974336 |