Age-related variation in energy expenditure in a longlived bird within the envelope of an energy ceiling
International audience 1. Energy expenditure in wild animals can be limited (i) intrinsically by physiological processes that constrain an animal's capacity to use energy, (ii) extrinsically by energy availability in the environment and/or (iii) strategically based on trade-offs between elevate...
Published in: | Journal of Animal Ecology |
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Main Authors: | , , , , , , , |
Other Authors: | , , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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HAL CCSD
2014
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Subjects: | |
Online Access: | https://hal.science/hal-00854231 https://doi.org/10.1111/1365-2656.12126 |
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ftccsdartic:oai:HAL:hal-00854231v1 |
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Open Polar |
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Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
op_collection_id |
ftccsdartic |
language |
English |
topic |
device effects doubly labelled water energy ceiling extrinsic limitation intrinsic limitation repeatability thick-billed murre Uria lomvia [SDE]Environmental Sciences [SDV]Life Sciences [q-bio] |
spellingShingle |
device effects doubly labelled water energy ceiling extrinsic limitation intrinsic limitation repeatability thick-billed murre Uria lomvia [SDE]Environmental Sciences [SDV]Life Sciences [q-bio] H. Elliott, Kyle Le Vaillant, Maryline Kato, Akiko J. Gaston, Anthony Ropert‐coudert, Yan F. Hare, James R. Speakman, John Croll, Donald Age-related variation in energy expenditure in a longlived bird within the envelope of an energy ceiling |
topic_facet |
device effects doubly labelled water energy ceiling extrinsic limitation intrinsic limitation repeatability thick-billed murre Uria lomvia [SDE]Environmental Sciences [SDV]Life Sciences [q-bio] |
description |
International audience 1. Energy expenditure in wild animals can be limited (i) intrinsically by physiological processes that constrain an animal's capacity to use energy, (ii) extrinsically by energy availability in the environment and/or (iii) strategically based on trade-offs between elevated metabolism and survival. Although these factors apply to all individuals within a population, some individuals expend more or less energy than other individuals. 2. To examine the role of an energy ceiling in a species with a high and individually repeatable metabolic rate, we compared energy expenditure of thick-billed murres (Uria lomvia) with and without handicaps during a period of peak energy demand (chick-rearing, N = 16). We also compared energy expenditure of unencumbered birds (N = 260) across 8 years exhibiting contrasting environmental conditions and correlated energy expenditure with fitness (reproductive success and survival). 3. Murres experienced an energy ceiling mediated through behavioural adjustments. Handicapped birds decreased time spent flying/diving and chick-provisioning rates such that overall daily energy expenditure remained unchanged across the two treatments. The energy ceiling did not reflect energy availability or trade-offs with fitness, as energy expenditure was similar across contrasting foraging conditions and was not associated with reduced survival or increased reproductive success. 4. We found partial support for the trade-off hypothesis as older murres, where prospects for future reproduction would be relatively limited, did overcome an energy ceiling to invest more in offspring following handicapping by reducing their own energy reserves. The ceiling therefore appeared to operate at the level of intake rather than expenditure. 5. A meta-analysis comparing responses of breeding animals to handicapping suggests that our results are typical: animals either reduced investment in themselves or in their offspring to remain below an energy ceiling. Across species, whether a handicapped ... |
author2 |
Department of Biological Sciences Winnipeg University of Manitoba Winnipeg Département Ecologie, Physiologie et Ethologie (DEPE-IPHC) Institut Pluridisciplinaire Hubert Curien (IPHC) Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS) Department of Zoology Stockholm University National Wildlife Research Center Environment and Climate Change Canada Institute of Environmental and Biological Sciences University of Aberdeen Key State Laboratory of Molecular Developmental Biology Chinese Academy of Sciences Changchun Branch (CAS) University of California Santa Cruz (UC Santa Cruz) University of California (UC) |
format |
Article in Journal/Newspaper |
author |
H. Elliott, Kyle Le Vaillant, Maryline Kato, Akiko J. Gaston, Anthony Ropert‐coudert, Yan F. Hare, James R. Speakman, John Croll, Donald |
author_facet |
H. Elliott, Kyle Le Vaillant, Maryline Kato, Akiko J. Gaston, Anthony Ropert‐coudert, Yan F. Hare, James R. Speakman, John Croll, Donald |
author_sort |
H. Elliott, Kyle |
title |
Age-related variation in energy expenditure in a longlived bird within the envelope of an energy ceiling |
title_short |
Age-related variation in energy expenditure in a longlived bird within the envelope of an energy ceiling |
title_full |
Age-related variation in energy expenditure in a longlived bird within the envelope of an energy ceiling |
title_fullStr |
Age-related variation in energy expenditure in a longlived bird within the envelope of an energy ceiling |
title_full_unstemmed |
Age-related variation in energy expenditure in a longlived bird within the envelope of an energy ceiling |
title_sort |
age-related variation in energy expenditure in a longlived bird within the envelope of an energy ceiling |
publisher |
HAL CCSD |
publishDate |
2014 |
url |
https://hal.science/hal-00854231 https://doi.org/10.1111/1365-2656.12126 |
genre |
thick-billed murre Uria lomvia uria |
genre_facet |
thick-billed murre Uria lomvia uria |
op_source |
ISSN: 0021-8790 EISSN: 1365-2656 Journal of Animal Ecology https://hal.science/hal-00854231 Journal of Animal Ecology, 2014, 83, pp.136-146. ⟨10.1111/1365-2656.12126⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1111/1365-2656.12126 hal-00854231 https://hal.science/hal-00854231 doi:10.1111/1365-2656.12126 |
op_doi |
https://doi.org/10.1111/1365-2656.12126 |
container_title |
Journal of Animal Ecology |
container_volume |
83 |
container_issue |
1 |
container_start_page |
136 |
op_container_end_page |
146 |
_version_ |
1790608882362482688 |
spelling |
ftccsdartic:oai:HAL:hal-00854231v1 2024-02-11T10:09:08+01:00 Age-related variation in energy expenditure in a longlived bird within the envelope of an energy ceiling H. Elliott, Kyle Le Vaillant, Maryline Kato, Akiko J. Gaston, Anthony Ropert‐coudert, Yan F. Hare, James R. Speakman, John Croll, Donald Department of Biological Sciences Winnipeg University of Manitoba Winnipeg Département Ecologie, Physiologie et Ethologie (DEPE-IPHC) Institut Pluridisciplinaire Hubert Curien (IPHC) Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS) Department of Zoology Stockholm University National Wildlife Research Center Environment and Climate Change Canada Institute of Environmental and Biological Sciences University of Aberdeen Key State Laboratory of Molecular Developmental Biology Chinese Academy of Sciences Changchun Branch (CAS) University of California Santa Cruz (UC Santa Cruz) University of California (UC) 2014 https://hal.science/hal-00854231 https://doi.org/10.1111/1365-2656.12126 en eng HAL CCSD Wiley info:eu-repo/semantics/altIdentifier/doi/10.1111/1365-2656.12126 hal-00854231 https://hal.science/hal-00854231 doi:10.1111/1365-2656.12126 ISSN: 0021-8790 EISSN: 1365-2656 Journal of Animal Ecology https://hal.science/hal-00854231 Journal of Animal Ecology, 2014, 83, pp.136-146. ⟨10.1111/1365-2656.12126⟩ device effects doubly labelled water energy ceiling extrinsic limitation intrinsic limitation repeatability thick-billed murre Uria lomvia [SDE]Environmental Sciences [SDV]Life Sciences [q-bio] info:eu-repo/semantics/article Journal articles 2014 ftccsdartic https://doi.org/10.1111/1365-2656.12126 2024-01-27T23:29:20Z International audience 1. Energy expenditure in wild animals can be limited (i) intrinsically by physiological processes that constrain an animal's capacity to use energy, (ii) extrinsically by energy availability in the environment and/or (iii) strategically based on trade-offs between elevated metabolism and survival. Although these factors apply to all individuals within a population, some individuals expend more or less energy than other individuals. 2. To examine the role of an energy ceiling in a species with a high and individually repeatable metabolic rate, we compared energy expenditure of thick-billed murres (Uria lomvia) with and without handicaps during a period of peak energy demand (chick-rearing, N = 16). We also compared energy expenditure of unencumbered birds (N = 260) across 8 years exhibiting contrasting environmental conditions and correlated energy expenditure with fitness (reproductive success and survival). 3. Murres experienced an energy ceiling mediated through behavioural adjustments. Handicapped birds decreased time spent flying/diving and chick-provisioning rates such that overall daily energy expenditure remained unchanged across the two treatments. The energy ceiling did not reflect energy availability or trade-offs with fitness, as energy expenditure was similar across contrasting foraging conditions and was not associated with reduced survival or increased reproductive success. 4. We found partial support for the trade-off hypothesis as older murres, where prospects for future reproduction would be relatively limited, did overcome an energy ceiling to invest more in offspring following handicapping by reducing their own energy reserves. The ceiling therefore appeared to operate at the level of intake rather than expenditure. 5. A meta-analysis comparing responses of breeding animals to handicapping suggests that our results are typical: animals either reduced investment in themselves or in their offspring to remain below an energy ceiling. Across species, whether a handicapped ... Article in Journal/Newspaper thick-billed murre Uria lomvia uria Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Journal of Animal Ecology 83 1 136 146 |