How accurately can we estimate energetic costs in a marine top predator, the king penguin?
International audience King penguins (Aptenodytes patagonicus) are one of the greatest consumers of marine resources. However, while their influence on the marine ecosystem is likely to be significant, only an accurate knowledge of their energy demands will indicate their true food requirements. Ene...
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ftunivnantes:oai:HAL:hal-00140893v1 2023-05-15T17:03:50+02:00 How accurately can we estimate energetic costs in a marine top predator, the king penguin? Halsey, L.G. Fahlman, A. Handrich, Y. Schmidt, A. Woakes, A.J. Butler, P.J. Département Ecologie, Physiologie et Ethologie (DEPE-IPHC) Institut Pluridisciplinaire Hubert Curien (IPHC) Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS)-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS) Centre for ornithology School of Biosciences-University of Birmingham Birmingham 2007 https://hal.science/hal-00140893 https://doi.org/10.1016/j.zool.2006.09.001 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/j.zool.2006.09.001 info:eu-repo/semantics/altIdentifier/pmid/17363231 hal-00140893 https://hal.science/hal-00140893 doi:10.1016/j.zool.2006.09.001 PUBMED: 17363231 ISSN: 0944-2006 Zoology https://hal.science/hal-00140893 Zoology, 2007, 110, pp.81-92. ⟨10.1016/j.zool.2006.09.001⟩ heart rate oxygen consumption marine resources aptenodytes patagonicus energy demand [SDV.BID.EVO]Life Sciences [q-bio]/Biodiversity/Populations and Evolution [q-bio.PE] info:eu-repo/semantics/article Journal articles 2007 ftunivnantes https://doi.org/10.1016/j.zool.2006.09.001 2023-02-08T09:55:04Z International audience King penguins (Aptenodytes patagonicus) are one of the greatest consumers of marine resources. However, while their influence on the marine ecosystem is likely to be significant, only an accurate knowledge of their energy demands will indicate their true food requirements. Energy consumption has been estimated for many marine species using the heart rate-rate of oxygen consumption [Formula: see text] technique, and the technique has been applied successfully to answer eco-physiological questions. However, previous studies on the energetics of king penguins, based on developing or applying this technique, have raised a number of issues about the degree of validity of the technique for this species. These include the predictive validity of the present [Formula: see text] equations across different seasons and individuals and during different modes of locomotion. In many cases, these issues also apply to other species for which the [Formula: see text] technique has been applied. In the present study, the accuracy of three prediction equations for king penguins was investigated based on validity studies and on estimates of [Formula: see text] from published, field f(H) data. The major conclusions from the present study are: (1) in contrast to that for walking, the [Formula: see text] relationship for swimming king penguins is not affected by body mass; (2) prediction equation (1), [Formula: see text] , derived in a previous study, is the most suitable equation presently available for estimating [Formula: see text] in king penguins for all locomotory and nutritional states. A number of possible problems associated with producing an [Formula: see text] relationship are discussed in the present study. Finally, a statistical method to include easy-to-measure morphometric characteristics, which may improve the accuracy of [Formula: see text] prediction equations, is explained. Article in Journal/Newspaper King Penguins Université de Nantes: HAL-UNIV-NANTES Zoology 110 2 81 92 |
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Open Polar |
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Université de Nantes: HAL-UNIV-NANTES |
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ftunivnantes |
language |
English |
topic |
heart rate oxygen consumption marine resources aptenodytes patagonicus energy demand [SDV.BID.EVO]Life Sciences [q-bio]/Biodiversity/Populations and Evolution [q-bio.PE] |
spellingShingle |
heart rate oxygen consumption marine resources aptenodytes patagonicus energy demand [SDV.BID.EVO]Life Sciences [q-bio]/Biodiversity/Populations and Evolution [q-bio.PE] Halsey, L.G. Fahlman, A. Handrich, Y. Schmidt, A. Woakes, A.J. Butler, P.J. How accurately can we estimate energetic costs in a marine top predator, the king penguin? |
topic_facet |
heart rate oxygen consumption marine resources aptenodytes patagonicus energy demand [SDV.BID.EVO]Life Sciences [q-bio]/Biodiversity/Populations and Evolution [q-bio.PE] |
description |
International audience King penguins (Aptenodytes patagonicus) are one of the greatest consumers of marine resources. However, while their influence on the marine ecosystem is likely to be significant, only an accurate knowledge of their energy demands will indicate their true food requirements. Energy consumption has been estimated for many marine species using the heart rate-rate of oxygen consumption [Formula: see text] technique, and the technique has been applied successfully to answer eco-physiological questions. However, previous studies on the energetics of king penguins, based on developing or applying this technique, have raised a number of issues about the degree of validity of the technique for this species. These include the predictive validity of the present [Formula: see text] equations across different seasons and individuals and during different modes of locomotion. In many cases, these issues also apply to other species for which the [Formula: see text] technique has been applied. In the present study, the accuracy of three prediction equations for king penguins was investigated based on validity studies and on estimates of [Formula: see text] from published, field f(H) data. The major conclusions from the present study are: (1) in contrast to that for walking, the [Formula: see text] relationship for swimming king penguins is not affected by body mass; (2) prediction equation (1), [Formula: see text] , derived in a previous study, is the most suitable equation presently available for estimating [Formula: see text] in king penguins for all locomotory and nutritional states. A number of possible problems associated with producing an [Formula: see text] relationship are discussed in the present study. Finally, a statistical method to include easy-to-measure morphometric characteristics, which may improve the accuracy of [Formula: see text] prediction equations, is explained. |
author2 |
Département Ecologie, Physiologie et Ethologie (DEPE-IPHC) Institut Pluridisciplinaire Hubert Curien (IPHC) Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS)-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS) Centre for ornithology School of Biosciences-University of Birmingham Birmingham |
format |
Article in Journal/Newspaper |
author |
Halsey, L.G. Fahlman, A. Handrich, Y. Schmidt, A. Woakes, A.J. Butler, P.J. |
author_facet |
Halsey, L.G. Fahlman, A. Handrich, Y. Schmidt, A. Woakes, A.J. Butler, P.J. |
author_sort |
Halsey, L.G. |
title |
How accurately can we estimate energetic costs in a marine top predator, the king penguin? |
title_short |
How accurately can we estimate energetic costs in a marine top predator, the king penguin? |
title_full |
How accurately can we estimate energetic costs in a marine top predator, the king penguin? |
title_fullStr |
How accurately can we estimate energetic costs in a marine top predator, the king penguin? |
title_full_unstemmed |
How accurately can we estimate energetic costs in a marine top predator, the king penguin? |
title_sort |
how accurately can we estimate energetic costs in a marine top predator, the king penguin? |
publisher |
HAL CCSD |
publishDate |
2007 |
url |
https://hal.science/hal-00140893 https://doi.org/10.1016/j.zool.2006.09.001 |
genre |
King Penguins |
genre_facet |
King Penguins |
op_source |
ISSN: 0944-2006 Zoology https://hal.science/hal-00140893 Zoology, 2007, 110, pp.81-92. ⟨10.1016/j.zool.2006.09.001⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.zool.2006.09.001 info:eu-repo/semantics/altIdentifier/pmid/17363231 hal-00140893 https://hal.science/hal-00140893 doi:10.1016/j.zool.2006.09.001 PUBMED: 17363231 |
op_doi |
https://doi.org/10.1016/j.zool.2006.09.001 |
container_title |
Zoology |
container_volume |
110 |
container_issue |
2 |
container_start_page |
81 |
op_container_end_page |
92 |
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1766057788111323136 |