Behavioural and physiological significance of minimum resting metabolic rate in king penguins
International audience Since fasting king penguins (Aptenodytes patagonicus) need to conserve energy, it is possible that they exhibit particularly low metabolic rates during periods of rest. We investigated the behavioural and physiological aspects of periods of minimum metabolic rate in king pengu...
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ftunivnantes:oai:HAL:hal-00162288v1 2023-05-15T17:03:47+02:00 Behavioural and physiological significance of minimum resting metabolic rate in king penguins Halsey, L.G. Butler, P.J. Fahlman, A. Woakes, A.J. Handrich, Yves Centre for ornithology School of Biosciences-University of Birmingham Birmingham UBC Marine Mammal Research Unit North Pacific Universities Marine Mammal Research Consortium 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) Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS) 2008 https://hal.science/hal-00162288 en eng HAL CCSD hal-00162288 https://hal.science/hal-00162288 Physiol. Biochemical. Zool. https://hal.science/hal-00162288 Physiol. Biochemical. Zool., 2008, 81 (1), pp.74-86 fasting heart rate king penguins metabolic rate oxygen consumption respiratory sinus arrhythmia respirometry [SDV.BID.EVO]Life Sciences [q-bio]/Biodiversity/Populations and Evolution [q-bio.PE] info:eu-repo/semantics/article Journal articles 2008 ftunivnantes 2023-03-08T06:36:33Z International audience Since fasting king penguins (Aptenodytes patagonicus) need to conserve energy, it is possible that they exhibit particularly low metabolic rates during periods of rest. We investigated the behavioural and physiological aspects of periods of minimum metabolic rate in king penguins under different circumstances. Heart rate (fH) measurements were recorded to estimate rate of oxygen consumption during periods of rest. Furthermore, apparent respiratory sinus arrhythmia (RSA) was calculated from the fH data to determine probable breathing frequency in resting penguins. The most pertinent results were: minimum fH achieved (over five minutes) was higher during respirometry experiments in air than during periods ashore in the field; minimum fH during respirometry experiments on water was similar to that while at sea; RSA was apparent in many of the fH traces during periods of minimum fH and provides accurate estimates of breathing rates of king penguins resting in specific situations in the field. Inferences made from the results include: king penguins do not have the capacity to reduce their metabolism to a particularly low level on land; however they can achieve surprisingly low metabolic rates at sea while resting in cold water; during respirometry experiments king penguins are stressed to some degree, exhibiting an elevated metabolism even when resting. Article in Journal/Newspaper King Penguins Université de Nantes: HAL-UNIV-NANTES |
institution |
Open Polar |
collection |
Université de Nantes: HAL-UNIV-NANTES |
op_collection_id |
ftunivnantes |
language |
English |
topic |
fasting heart rate king penguins metabolic rate oxygen consumption respiratory sinus arrhythmia respirometry [SDV.BID.EVO]Life Sciences [q-bio]/Biodiversity/Populations and Evolution [q-bio.PE] |
spellingShingle |
fasting heart rate king penguins metabolic rate oxygen consumption respiratory sinus arrhythmia respirometry [SDV.BID.EVO]Life Sciences [q-bio]/Biodiversity/Populations and Evolution [q-bio.PE] Halsey, L.G. Butler, P.J. Fahlman, A. Woakes, A.J. Handrich, Yves Behavioural and physiological significance of minimum resting metabolic rate in king penguins |
topic_facet |
fasting heart rate king penguins metabolic rate oxygen consumption respiratory sinus arrhythmia respirometry [SDV.BID.EVO]Life Sciences [q-bio]/Biodiversity/Populations and Evolution [q-bio.PE] |
description |
International audience Since fasting king penguins (Aptenodytes patagonicus) need to conserve energy, it is possible that they exhibit particularly low metabolic rates during periods of rest. We investigated the behavioural and physiological aspects of periods of minimum metabolic rate in king penguins under different circumstances. Heart rate (fH) measurements were recorded to estimate rate of oxygen consumption during periods of rest. Furthermore, apparent respiratory sinus arrhythmia (RSA) was calculated from the fH data to determine probable breathing frequency in resting penguins. The most pertinent results were: minimum fH achieved (over five minutes) was higher during respirometry experiments in air than during periods ashore in the field; minimum fH during respirometry experiments on water was similar to that while at sea; RSA was apparent in many of the fH traces during periods of minimum fH and provides accurate estimates of breathing rates of king penguins resting in specific situations in the field. Inferences made from the results include: king penguins do not have the capacity to reduce their metabolism to a particularly low level on land; however they can achieve surprisingly low metabolic rates at sea while resting in cold water; during respirometry experiments king penguins are stressed to some degree, exhibiting an elevated metabolism even when resting. |
author2 |
Centre for ornithology School of Biosciences-University of Birmingham Birmingham UBC Marine Mammal Research Unit North Pacific Universities Marine Mammal Research Consortium 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) Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Halsey, L.G. Butler, P.J. Fahlman, A. Woakes, A.J. Handrich, Yves |
author_facet |
Halsey, L.G. Butler, P.J. Fahlman, A. Woakes, A.J. Handrich, Yves |
author_sort |
Halsey, L.G. |
title |
Behavioural and physiological significance of minimum resting metabolic rate in king penguins |
title_short |
Behavioural and physiological significance of minimum resting metabolic rate in king penguins |
title_full |
Behavioural and physiological significance of minimum resting metabolic rate in king penguins |
title_fullStr |
Behavioural and physiological significance of minimum resting metabolic rate in king penguins |
title_full_unstemmed |
Behavioural and physiological significance of minimum resting metabolic rate in king penguins |
title_sort |
behavioural and physiological significance of minimum resting metabolic rate in king penguins |
publisher |
HAL CCSD |
publishDate |
2008 |
url |
https://hal.science/hal-00162288 |
genre |
King Penguins |
genre_facet |
King Penguins |
op_source |
Physiol. Biochemical. Zool. https://hal.science/hal-00162288 Physiol. Biochemical. Zool., 2008, 81 (1), pp.74-86 |
op_relation |
hal-00162288 https://hal.science/hal-00162288 |
_version_ |
1766057725713711104 |