Accelerometers can measure total and activity-specific energy expenditures in free-ranging marine mammals only if linked to time-activity budgets
International audience 1. Energy expenditure is an important component of foraging ecology, but is extremely difficultto estimate in free-ranging animals and depends on how animals partition their timebetween different activities during foraging. Acceleration data have emerged as a new way todetermi...
Published in: | Functional Ecology |
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Online Access: | https://hal.archives-ouvertes.fr/hal-01507594 https://doi.org/10.1111/1365-2435.12729 |
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ftccsdartic:oai:HAL:hal-01507594v1 2023-05-15T13:51:41+02:00 Accelerometers can measure total and activity-specific energy expenditures in free-ranging marine mammals only if linked to time-activity budgets Jeanniard-du-Dot, Tiphaine Guinet, Christophe Arnould, John P.Y. Speakman, John R Trites, Andrew W. Fisheries Centre (Marine Mammal Research Unit) University of British Columbia (UBC) Centre d'Études Biologiques de Chizé - UMR 7372 (CEBC) Université de La Rochelle (ULR)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) School of Life and Environmental Sciences Deakin University Burwood Institute of Biological and Environmental Sciences University of Aberdeen Marine Mammal Research Unit (University of British Columbia) 2017 https://hal.archives-ouvertes.fr/hal-01507594 https://doi.org/10.1111/1365-2435.12729 en eng HAL CCSD Wiley info:eu-repo/semantics/altIdentifier/doi/10.1111/1365-2435.12729 hal-01507594 https://hal.archives-ouvertes.fr/hal-01507594 doi:10.1111/1365-2435.12729 ISSN: 0269-8463 EISSN: 1365-2435 Functional Ecology https://hal.archives-ouvertes.fr/hal-01507594 Functional Ecology, Wiley, 2017, 31, pp.377-386. ⟨10.1111/1365-2435.12729⟩ acceleration Antarctic fur seal energy expenditure foraging metabolic rate northern fur seal time-activity budget VeDBA [SDE]Environmental Sciences info:eu-repo/semantics/article Journal articles 2017 ftccsdartic https://doi.org/10.1111/1365-2435.12729 2021-11-07T03:55:22Z International audience 1. Energy expenditure is an important component of foraging ecology, but is extremely difficultto estimate in free-ranging animals and depends on how animals partition their timebetween different activities during foraging. Acceleration data have emerged as a new way todetermine energy expenditure at a fine scale but this needs to be tested and validated in wildanimals.2. This study investigated whether vectorial dynamic body acceleration (VeDBA) could accuratelypredict the energy expended by marine predators during a full foraging trip. We alsoaimed to determine whether the accuracy of predictions of energy expenditure derived fromacceleration increased when partitioned by different types of at-sea activities (i.e. diving, transiting,resting and surface activities).3. To do so, we equipped 20 lactating northern (Callorhinus ursinus) and 20 lactating Antarcticfur seals (Arctocephalus gazella) with GPS, time-depth recorders and tri-axial accelerometersand obtained estimates of field metabolic rates using the doubly labelled water (DLW)method. VeDBA was derived from tri-axial acceleration, and at-sea activities (diving, transiting,resting and surface activities) were determined using dive depth, tri-axial acceleration andtravelling speed.4. We found that VeDBA did not accurately predict the total energy expended by fur sealsduring their full foraging trips (R2 = 036). However, the accuracy of VeDBA as a predictorof total energy expenditure increased significantly when foraging trips were partitioned byactivity and when activity-specific VeDBA was paired with time-activity budgets (R2 = 070).Activity-specific VeDBA also accurately predicted the energy expenditures of each activityindependent of each other (R2 > 085).5. Our study confirms that acceleration is a promising way to estimate energy expenditures offree-ranging marine mammals at a fine scale never attained before. However, it shows that itneeds to be based on the time-activity budgets that make up foraging trips rather than ... Article in Journal/Newspaper Antarc* Antarctic Antarctic Fur Seal Arctocephalus gazella Callorhinus ursinus Northern fur seal Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Antarctic Functional Ecology 31 2 377 386 |
institution |
Open Polar |
collection |
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
op_collection_id |
ftccsdartic |
language |
English |
topic |
acceleration Antarctic fur seal energy expenditure foraging metabolic rate northern fur seal time-activity budget VeDBA [SDE]Environmental Sciences |
spellingShingle |
acceleration Antarctic fur seal energy expenditure foraging metabolic rate northern fur seal time-activity budget VeDBA [SDE]Environmental Sciences Jeanniard-du-Dot, Tiphaine Guinet, Christophe Arnould, John P.Y. Speakman, John R Trites, Andrew W. Accelerometers can measure total and activity-specific energy expenditures in free-ranging marine mammals only if linked to time-activity budgets |
topic_facet |
acceleration Antarctic fur seal energy expenditure foraging metabolic rate northern fur seal time-activity budget VeDBA [SDE]Environmental Sciences |
description |
International audience 1. Energy expenditure is an important component of foraging ecology, but is extremely difficultto estimate in free-ranging animals and depends on how animals partition their timebetween different activities during foraging. Acceleration data have emerged as a new way todetermine energy expenditure at a fine scale but this needs to be tested and validated in wildanimals.2. This study investigated whether vectorial dynamic body acceleration (VeDBA) could accuratelypredict the energy expended by marine predators during a full foraging trip. We alsoaimed to determine whether the accuracy of predictions of energy expenditure derived fromacceleration increased when partitioned by different types of at-sea activities (i.e. diving, transiting,resting and surface activities).3. To do so, we equipped 20 lactating northern (Callorhinus ursinus) and 20 lactating Antarcticfur seals (Arctocephalus gazella) with GPS, time-depth recorders and tri-axial accelerometersand obtained estimates of field metabolic rates using the doubly labelled water (DLW)method. VeDBA was derived from tri-axial acceleration, and at-sea activities (diving, transiting,resting and surface activities) were determined using dive depth, tri-axial acceleration andtravelling speed.4. We found that VeDBA did not accurately predict the total energy expended by fur sealsduring their full foraging trips (R2 = 036). However, the accuracy of VeDBA as a predictorof total energy expenditure increased significantly when foraging trips were partitioned byactivity and when activity-specific VeDBA was paired with time-activity budgets (R2 = 070).Activity-specific VeDBA also accurately predicted the energy expenditures of each activityindependent of each other (R2 > 085).5. Our study confirms that acceleration is a promising way to estimate energy expenditures offree-ranging marine mammals at a fine scale never attained before. However, it shows that itneeds to be based on the time-activity budgets that make up foraging trips rather than ... |
author2 |
Fisheries Centre (Marine Mammal Research Unit) University of British Columbia (UBC) Centre d'Études Biologiques de Chizé - UMR 7372 (CEBC) Université de La Rochelle (ULR)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) School of Life and Environmental Sciences Deakin University Burwood Institute of Biological and Environmental Sciences University of Aberdeen Marine Mammal Research Unit (University of British Columbia) |
format |
Article in Journal/Newspaper |
author |
Jeanniard-du-Dot, Tiphaine Guinet, Christophe Arnould, John P.Y. Speakman, John R Trites, Andrew W. |
author_facet |
Jeanniard-du-Dot, Tiphaine Guinet, Christophe Arnould, John P.Y. Speakman, John R Trites, Andrew W. |
author_sort |
Jeanniard-du-Dot, Tiphaine |
title |
Accelerometers can measure total and activity-specific energy expenditures in free-ranging marine mammals only if linked to time-activity budgets |
title_short |
Accelerometers can measure total and activity-specific energy expenditures in free-ranging marine mammals only if linked to time-activity budgets |
title_full |
Accelerometers can measure total and activity-specific energy expenditures in free-ranging marine mammals only if linked to time-activity budgets |
title_fullStr |
Accelerometers can measure total and activity-specific energy expenditures in free-ranging marine mammals only if linked to time-activity budgets |
title_full_unstemmed |
Accelerometers can measure total and activity-specific energy expenditures in free-ranging marine mammals only if linked to time-activity budgets |
title_sort |
accelerometers can measure total and activity-specific energy expenditures in free-ranging marine mammals only if linked to time-activity budgets |
publisher |
HAL CCSD |
publishDate |
2017 |
url |
https://hal.archives-ouvertes.fr/hal-01507594 https://doi.org/10.1111/1365-2435.12729 |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic Antarctic Fur Seal Arctocephalus gazella Callorhinus ursinus Northern fur seal |
genre_facet |
Antarc* Antarctic Antarctic Fur Seal Arctocephalus gazella Callorhinus ursinus Northern fur seal |
op_source |
ISSN: 0269-8463 EISSN: 1365-2435 Functional Ecology https://hal.archives-ouvertes.fr/hal-01507594 Functional Ecology, Wiley, 2017, 31, pp.377-386. ⟨10.1111/1365-2435.12729⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1111/1365-2435.12729 hal-01507594 https://hal.archives-ouvertes.fr/hal-01507594 doi:10.1111/1365-2435.12729 |
op_doi |
https://doi.org/10.1111/1365-2435.12729 |
container_title |
Functional Ecology |
container_volume |
31 |
container_issue |
2 |
container_start_page |
377 |
op_container_end_page |
386 |
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1766255702056108032 |