Activity‐specific metabolic rates for diving, transiting, and resting at sea can be estimated from time–activity budgets in free‐ranging marine mammals
Abstract Time and energy are the two most important currencies in animal bioenergetics. How much time animals spend engaged in different activities with specific energetic costs ultimately defines their likelihood of surviving and successfully reproducing. However, it is extremely difficult to deter...
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crwiley:10.1002/ece3.2546 2024-10-13T14:02:43+00:00 Activity‐specific metabolic rates for diving, transiting, and resting at sea can be estimated from time–activity budgets in free‐ranging marine mammals Jeanniard‐du‐Dot, Tiphaine Trites, Andrew W. Arnould, John P. Y. Speakman, John R. Guinet, Christophe Natural Sciences and Engineering Research Council of Canada 2017 http://dx.doi.org/10.1002/ece3.2546 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fece3.2546 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ece3.2546 en eng Wiley http://creativecommons.org/licenses/by/4.0/ Ecology and Evolution volume 7, issue 9, page 2969-2976 ISSN 2045-7758 2045-7758 journal-article 2017 crwiley https://doi.org/10.1002/ece3.2546 2024-09-17T04:50:34Z Abstract Time and energy are the two most important currencies in animal bioenergetics. How much time animals spend engaged in different activities with specific energetic costs ultimately defines their likelihood of surviving and successfully reproducing. However, it is extremely difficult to determine the energetic costs of independent activities for free‐ranging animals. In this study, we developed a new method to calculate activity‐specific metabolic rates, and applied it to female fur seals. We attached biologgers (that recorded GPS locations, depth profiles, and triaxial acceleration) to 12 northern ( Callorhinus ursinus ) and 13 Antarctic fur seals ( Arctocephalus gazella ), and used a hierarchical decision tree algorithm to determine time allocation between diving, transiting, resting, and performing slow movements at the surface (grooming, etc.). We concomitantly measured the total energy expenditure using the doubly‐labelled water method. We used a general least‐square model to establish the relationship between time–activity budgets and the total energy spent by each individual during their foraging trip to predict activity‐specific metabolic rates. Results show that both species allocated similar time to diving (~29%), transiting to and from their foraging grounds (~26–30%), and resting (~8–11%). However, Antarctic fur seals spent significantly more time grooming and moving slowly at the surface than northern fur seals (36% vs. 29%). Diving was the most expensive activity (~30 MJ/day if done non‐stop for 24 hr), followed by transiting at the surface (~21 MJ/day). Interestingly, metabolic rates were similar between species while on land or while slowly moving at the surface (~13 MJ/day). Overall, the average field metabolic rate was ~20 MJ/day (for all activities combined). The method we developed to calculate activity‐specific metabolic rates can be applied to terrestrial and marine species to determine the energetic costs of daily activities, as well as to predict the energetic consequences for ... Article in Journal/Newspaper Antarc* Antarctic Antarctic Fur Seals Arctocephalus gazella Callorhinus ursinus Wiley Online Library Antarctic Ecology and Evolution 7 9 2969 2976 |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract Time and energy are the two most important currencies in animal bioenergetics. How much time animals spend engaged in different activities with specific energetic costs ultimately defines their likelihood of surviving and successfully reproducing. However, it is extremely difficult to determine the energetic costs of independent activities for free‐ranging animals. In this study, we developed a new method to calculate activity‐specific metabolic rates, and applied it to female fur seals. We attached biologgers (that recorded GPS locations, depth profiles, and triaxial acceleration) to 12 northern ( Callorhinus ursinus ) and 13 Antarctic fur seals ( Arctocephalus gazella ), and used a hierarchical decision tree algorithm to determine time allocation between diving, transiting, resting, and performing slow movements at the surface (grooming, etc.). We concomitantly measured the total energy expenditure using the doubly‐labelled water method. We used a general least‐square model to establish the relationship between time–activity budgets and the total energy spent by each individual during their foraging trip to predict activity‐specific metabolic rates. Results show that both species allocated similar time to diving (~29%), transiting to and from their foraging grounds (~26–30%), and resting (~8–11%). However, Antarctic fur seals spent significantly more time grooming and moving slowly at the surface than northern fur seals (36% vs. 29%). Diving was the most expensive activity (~30 MJ/day if done non‐stop for 24 hr), followed by transiting at the surface (~21 MJ/day). Interestingly, metabolic rates were similar between species while on land or while slowly moving at the surface (~13 MJ/day). Overall, the average field metabolic rate was ~20 MJ/day (for all activities combined). The method we developed to calculate activity‐specific metabolic rates can be applied to terrestrial and marine species to determine the energetic costs of daily activities, as well as to predict the energetic consequences for ... |
author2 |
Natural Sciences and Engineering Research Council of Canada |
format |
Article in Journal/Newspaper |
author |
Jeanniard‐du‐Dot, Tiphaine Trites, Andrew W. Arnould, John P. Y. Speakman, John R. Guinet, Christophe |
spellingShingle |
Jeanniard‐du‐Dot, Tiphaine Trites, Andrew W. Arnould, John P. Y. Speakman, John R. Guinet, Christophe Activity‐specific metabolic rates for diving, transiting, and resting at sea can be estimated from time–activity budgets in free‐ranging marine mammals |
author_facet |
Jeanniard‐du‐Dot, Tiphaine Trites, Andrew W. Arnould, John P. Y. Speakman, John R. Guinet, Christophe |
author_sort |
Jeanniard‐du‐Dot, Tiphaine |
title |
Activity‐specific metabolic rates for diving, transiting, and resting at sea can be estimated from time–activity budgets in free‐ranging marine mammals |
title_short |
Activity‐specific metabolic rates for diving, transiting, and resting at sea can be estimated from time–activity budgets in free‐ranging marine mammals |
title_full |
Activity‐specific metabolic rates for diving, transiting, and resting at sea can be estimated from time–activity budgets in free‐ranging marine mammals |
title_fullStr |
Activity‐specific metabolic rates for diving, transiting, and resting at sea can be estimated from time–activity budgets in free‐ranging marine mammals |
title_full_unstemmed |
Activity‐specific metabolic rates for diving, transiting, and resting at sea can be estimated from time–activity budgets in free‐ranging marine mammals |
title_sort |
activity‐specific metabolic rates for diving, transiting, and resting at sea can be estimated from time–activity budgets in free‐ranging marine mammals |
publisher |
Wiley |
publishDate |
2017 |
url |
http://dx.doi.org/10.1002/ece3.2546 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fece3.2546 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ece3.2546 |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic Antarctic Fur Seals Arctocephalus gazella Callorhinus ursinus |
genre_facet |
Antarc* Antarctic Antarctic Fur Seals Arctocephalus gazella Callorhinus ursinus |
op_source |
Ecology and Evolution volume 7, issue 9, page 2969-2976 ISSN 2045-7758 2045-7758 |
op_rights |
http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1002/ece3.2546 |
container_title |
Ecology and Evolution |
container_volume |
7 |
container_issue |
9 |
container_start_page |
2969 |
op_container_end_page |
2976 |
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1812819189186953216 |