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...

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Published in:Endangered Species Research
Main Authors: ANDREWS-GOFF, Virginia, HINDELL, Mark A., FIELD, Ian Craig, WHEATLEY, Kathryn, CHARRASSIN, Jean-Benoit
Format: Other/Unknown Material
Language:English
Published: Oldendorf/Luhe : Inter-Research 2010
Subjects:
Online Access:https://oskar-bordeaux.fr/handle/20.500.12278/39440
https://doi.org/10.3354/esr00257
id ftoskarbordeaux:oai:oskar-bordeaux.fr:20.500.12278/39440
record_format openpolar
spelling 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
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