Horizontal and vertical movements as predictors of foraging success in a marine predator
International audience With technical advances in wildlife telemetry, the study of cryptic predators' responses to prey distribution has been revolutionised. In the case of marine predators, high resolution tagging devices have been developed recently to collect precise diving datasets covering...
Published in: | Marine Ecology Progress Series |
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Main Authors: | , , , |
Other Authors: | , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2012
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Subjects: | |
Online Access: | https://hal.science/hal-00659580 https://hal.science/hal-00659580/document https://hal.science/hal-00659580/file/Dragon_MEPS.pdf https://doi.org/10.3354/meps09498 |
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ftceafr:oai:HAL:hal-00659580v1 |
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record_format |
openpolar |
institution |
Open Polar |
collection |
HAL-CEA (Commissariat à l'énergie atomique et aux énergies alternatives) |
op_collection_id |
ftceafr |
language |
English |
topic |
Area-restricted search Dive classification Drift dive Fine-scale behaviour Movement analysis [SDE]Environmental Sciences |
spellingShingle |
Area-restricted search Dive classification Drift dive Fine-scale behaviour Movement analysis [SDE]Environmental Sciences Dragon, Anne-Cécile Bar-Hen, Avner Monestiez, Pascal, P. Guinet, Christophe Horizontal and vertical movements as predictors of foraging success in a marine predator |
topic_facet |
Area-restricted search Dive classification Drift dive Fine-scale behaviour Movement analysis [SDE]Environmental Sciences |
description |
International audience With technical advances in wildlife telemetry, the study of cryptic predators' responses to prey distribution has been revolutionised. In the case of marine predators, high resolution tagging devices have been developed recently to collect precise diving datasets covering extended periods of time. In this study, we investigated changes in the horizontal movements and diving patterns of a marine predator, the southern elephant seal, at fine temporal and spatial scales. Satellite tracking data collected for 9 seals were processed with switching state-space models. Seal body condition, as a proxy for foraging success, was estimated through changes in drift rate from Time Depth Recorder (TDR) data. We identified (1) statistically distinct behavioural modes from the tracking data (intensive vs. extensive foraging modes) and (2) distinct dive classes from the TDR diving data (drift, exploratory, shallow active and deep active dives). Active dives, associated with vertical foraging and chasing, were more numerous when the seals were in intensive foraging mode. Improved body condition and mass gain of seals were also associated with the intensive foraging mode and, within the vertical dimension, with sets of highly active dives. In conclusion, proportions of dive classes varied according to seals' horizontal behaviour. Intensive foraging detected from surface tracking data is a good predictor of diving activity and foraging success occurring in the vertical dimension. |
author2 |
Centre d'Études Biologiques de Chizé (CEBC) Institut National de la Recherche Agronomique (INRA)-Centre National de la Recherche Scientifique (CNRS) Mathématiques Appliquées Paris 5 (MAP5 - UMR 8145) Université Paris Descartes - Paris 5 (UPD5)-Institut National des Sciences Mathématiques et de leurs Interactions - CNRS Mathématiques (INSMI-CNRS)-Centre National de la Recherche Scientifique (CNRS) Laboratoire d'Océanographie et du Climat : Expérimentations et Approches Numériques (LOCEAN) Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)) École normale supérieure - Paris (ENS-PSL) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X) Institut Polytechnique de Paris (IP Paris)-Institut Polytechnique de Paris (IP Paris)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Paris (ENS-PSL) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X) Institut Polytechnique de Paris (IP Paris)-Institut Polytechnique de Paris (IP Paris)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS) Biostatistique et Processus Spatiaux (BioSP) Institut National de la Recherche Agronomique (INRA) |
format |
Article in Journal/Newspaper |
author |
Dragon, Anne-Cécile Bar-Hen, Avner Monestiez, Pascal, P. Guinet, Christophe |
author_facet |
Dragon, Anne-Cécile Bar-Hen, Avner Monestiez, Pascal, P. Guinet, Christophe |
author_sort |
Dragon, Anne-Cécile |
title |
Horizontal and vertical movements as predictors of foraging success in a marine predator |
title_short |
Horizontal and vertical movements as predictors of foraging success in a marine predator |
title_full |
Horizontal and vertical movements as predictors of foraging success in a marine predator |
title_fullStr |
Horizontal and vertical movements as predictors of foraging success in a marine predator |
title_full_unstemmed |
Horizontal and vertical movements as predictors of foraging success in a marine predator |
title_sort |
horizontal and vertical movements as predictors of foraging success in a marine predator |
publisher |
HAL CCSD |
publishDate |
2012 |
url |
https://hal.science/hal-00659580 https://hal.science/hal-00659580/document https://hal.science/hal-00659580/file/Dragon_MEPS.pdf https://doi.org/10.3354/meps09498 |
genre |
Elephant Seal Southern Elephant Seal |
genre_facet |
Elephant Seal Southern Elephant Seal |
op_source |
ISSN: 0171-8630 EISSN: 1616-1599 Marine Ecology Progress Series https://hal.science/hal-00659580 Marine Ecology Progress Series, 2012, 447, pp.243-257. ⟨10.3354/meps09498⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.3354/meps09498 hal-00659580 https://hal.science/hal-00659580 https://hal.science/hal-00659580/document https://hal.science/hal-00659580/file/Dragon_MEPS.pdf doi:10.3354/meps09498 PRODINRA: 49820 WOS: 000300660600017 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.3354/meps09498 |
container_title |
Marine Ecology Progress Series |
container_volume |
447 |
container_start_page |
243 |
op_container_end_page |
257 |
_version_ |
1810442269316087808 |
spelling |
ftceafr:oai:HAL:hal-00659580v1 2024-09-15T18:04:39+00:00 Horizontal and vertical movements as predictors of foraging success in a marine predator Dragon, Anne-Cécile Bar-Hen, Avner Monestiez, Pascal, P. Guinet, Christophe Centre d'Études Biologiques de Chizé (CEBC) Institut National de la Recherche Agronomique (INRA)-Centre National de la Recherche Scientifique (CNRS) Mathématiques Appliquées Paris 5 (MAP5 - UMR 8145) Université Paris Descartes - Paris 5 (UPD5)-Institut National des Sciences Mathématiques et de leurs Interactions - CNRS Mathématiques (INSMI-CNRS)-Centre National de la Recherche Scientifique (CNRS) Laboratoire d'Océanographie et du Climat : Expérimentations et Approches Numériques (LOCEAN) Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)) École normale supérieure - Paris (ENS-PSL) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X) Institut Polytechnique de Paris (IP Paris)-Institut Polytechnique de Paris (IP Paris)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Paris (ENS-PSL) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X) Institut Polytechnique de Paris (IP Paris)-Institut Polytechnique de Paris (IP Paris)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS) Biostatistique et Processus Spatiaux (BioSP) Institut National de la Recherche Agronomique (INRA) 2012 https://hal.science/hal-00659580 https://hal.science/hal-00659580/document https://hal.science/hal-00659580/file/Dragon_MEPS.pdf https://doi.org/10.3354/meps09498 en eng HAL CCSD Inter Research info:eu-repo/semantics/altIdentifier/doi/10.3354/meps09498 hal-00659580 https://hal.science/hal-00659580 https://hal.science/hal-00659580/document https://hal.science/hal-00659580/file/Dragon_MEPS.pdf doi:10.3354/meps09498 PRODINRA: 49820 WOS: 000300660600017 info:eu-repo/semantics/OpenAccess ISSN: 0171-8630 EISSN: 1616-1599 Marine Ecology Progress Series https://hal.science/hal-00659580 Marine Ecology Progress Series, 2012, 447, pp.243-257. ⟨10.3354/meps09498⟩ Area-restricted search Dive classification Drift dive Fine-scale behaviour Movement analysis [SDE]Environmental Sciences info:eu-repo/semantics/article Journal articles 2012 ftceafr https://doi.org/10.3354/meps09498 2024-08-06T03:57:40Z International audience With technical advances in wildlife telemetry, the study of cryptic predators' responses to prey distribution has been revolutionised. In the case of marine predators, high resolution tagging devices have been developed recently to collect precise diving datasets covering extended periods of time. In this study, we investigated changes in the horizontal movements and diving patterns of a marine predator, the southern elephant seal, at fine temporal and spatial scales. Satellite tracking data collected for 9 seals were processed with switching state-space models. Seal body condition, as a proxy for foraging success, was estimated through changes in drift rate from Time Depth Recorder (TDR) data. We identified (1) statistically distinct behavioural modes from the tracking data (intensive vs. extensive foraging modes) and (2) distinct dive classes from the TDR diving data (drift, exploratory, shallow active and deep active dives). Active dives, associated with vertical foraging and chasing, were more numerous when the seals were in intensive foraging mode. Improved body condition and mass gain of seals were also associated with the intensive foraging mode and, within the vertical dimension, with sets of highly active dives. In conclusion, proportions of dive classes varied according to seals' horizontal behaviour. Intensive foraging detected from surface tracking data is a good predictor of diving activity and foraging success occurring in the vertical dimension. Article in Journal/Newspaper Elephant Seal Southern Elephant Seal HAL-CEA (Commissariat à l'énergie atomique et aux énergies alternatives) Marine Ecology Progress Series 447 243 257 |