Body surface rewarming in fully and partially hypothermic king penguins
International audience Penguins face a major thermal transition when returning to land in a hypothermic state after a foraging trip. Uninsulatedappendages (fl and feet) could provide fl xible heat exchange during subsequent rewarming. Here, we tested the hypothesis that peripheral vasodilation could...
Published in: | Journal of Comparative Physiology B |
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Online Access: | https://hal.archives-ouvertes.fr/hal-02902668 https://hal.archives-ouvertes.fr/hal-02902668/document https://hal.archives-ouvertes.fr/hal-02902668/file/Lewden2020_Article_BodySurfaceRewarmingInFullyAnd.pdf https://doi.org/10.1007/s00360-020-01294-1 |
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ftccsdartic:oai:HAL:hal-02902668v1 2023-05-15T17:03:54+02:00 Body surface rewarming in fully and partially hypothermic king penguins LEWDEN, Agnès Nord, Andreas Bonnet, Batshéva Chauvet, Florent Ancel, André, Mccafferty, Dominic Département Ecologie, Physiologie et Ethologie (DEPE-IPHC) Institut Pluridisciplinaire Hubert Curien (IPHC) Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS) University of Leeds Department of Biology Lund University University of Glasgow 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) 2020 https://hal.archives-ouvertes.fr/hal-02902668 https://hal.archives-ouvertes.fr/hal-02902668/document https://hal.archives-ouvertes.fr/hal-02902668/file/Lewden2020_Article_BodySurfaceRewarmingInFullyAnd.pdf https://doi.org/10.1007/s00360-020-01294-1 en eng HAL CCSD Springer Verlag info:eu-repo/semantics/altIdentifier/doi/10.1007/s00360-020-01294-1 hal-02902668 https://hal.archives-ouvertes.fr/hal-02902668 https://hal.archives-ouvertes.fr/hal-02902668/document https://hal.archives-ouvertes.fr/hal-02902668/file/Lewden2020_Article_BodySurfaceRewarmingInFullyAnd.pdf doi:10.1007/s00360-020-01294-1 info:eu-repo/semantics/OpenAccess ISSN: 0174-1578 EISSN: 1432-136X Journal of Comparative Physiology B https://hal.archives-ouvertes.fr/hal-02902668 Journal of Comparative Physiology B, Springer Verlag, 2020, 190, pp.597 - 609. ⟨10.1007/s00360-020-01294-1⟩ Thermal windows Heterothermy Thermal imaging Vasoconstriction Vasodilation Vasomotor response Thermoregulation Bird [SDE]Environmental Sciences info:eu-repo/semantics/article Journal articles 2020 ftccsdartic https://doi.org/10.1007/s00360-020-01294-1 2021-11-07T00:43:21Z International audience Penguins face a major thermal transition when returning to land in a hypothermic state after a foraging trip. Uninsulatedappendages (fl and feet) could provide fl xible heat exchange during subsequent rewarming. Here, we tested the hypothesis that peripheral vasodilation could be delayed during this recovery stage. To this end, we designed an experiment to examine patterns of surface rewarming in fully hypothermic (the cloaca and peripheral regions (here; flippers, feet and the breast) < 37 °C) and partially hypothermic (cloaca at normothermia ≥ 37 °C, but periphery at hypothermia) king penguins (Aptenodytes patagonicus) when they rewarmed in the laboratory. Both groups rewarmed during the 21 min observation period, but the temperature changes were larger in fully than in partially hypothermic birds. Moreover, we observed a 5 min delay of peripheral temperature in fully compared to partially hypothermic birds, suggesting that this process was impacted by low internal temperature. To investigate whether our laboratory data were applicable to field conditions, we also recorded surface temperatures of free-ranging penguins after they came ashore to the colony. Initial surface temperatures were lower in these birds compared to in those that rewarmed in the laboratory, and changed less over a comparable period of time on land. This could be explained both by environmental conditions and possible handling-induced thermogenesis in the labora- tory. Nevertheless, this study demonstrated that appendage vasodilation is flexibly used during rewarming and that recovery may be influenced by both internal temperature and environmental conditions when penguins transition from sea to land. Article in Journal/Newspaper King Penguins Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Journal of Comparative Physiology B 190 5 597 609 |
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 |
Thermal windows Heterothermy Thermal imaging Vasoconstriction Vasodilation Vasomotor response Thermoregulation Bird [SDE]Environmental Sciences |
spellingShingle |
Thermal windows Heterothermy Thermal imaging Vasoconstriction Vasodilation Vasomotor response Thermoregulation Bird [SDE]Environmental Sciences LEWDEN, Agnès Nord, Andreas Bonnet, Batshéva Chauvet, Florent Ancel, André, Mccafferty, Dominic Body surface rewarming in fully and partially hypothermic king penguins |
topic_facet |
Thermal windows Heterothermy Thermal imaging Vasoconstriction Vasodilation Vasomotor response Thermoregulation Bird [SDE]Environmental Sciences |
description |
International audience Penguins face a major thermal transition when returning to land in a hypothermic state after a foraging trip. Uninsulatedappendages (fl and feet) could provide fl xible heat exchange during subsequent rewarming. Here, we tested the hypothesis that peripheral vasodilation could be delayed during this recovery stage. To this end, we designed an experiment to examine patterns of surface rewarming in fully hypothermic (the cloaca and peripheral regions (here; flippers, feet and the breast) < 37 °C) and partially hypothermic (cloaca at normothermia ≥ 37 °C, but periphery at hypothermia) king penguins (Aptenodytes patagonicus) when they rewarmed in the laboratory. Both groups rewarmed during the 21 min observation period, but the temperature changes were larger in fully than in partially hypothermic birds. Moreover, we observed a 5 min delay of peripheral temperature in fully compared to partially hypothermic birds, suggesting that this process was impacted by low internal temperature. To investigate whether our laboratory data were applicable to field conditions, we also recorded surface temperatures of free-ranging penguins after they came ashore to the colony. Initial surface temperatures were lower in these birds compared to in those that rewarmed in the laboratory, and changed less over a comparable period of time on land. This could be explained both by environmental conditions and possible handling-induced thermogenesis in the labora- tory. Nevertheless, this study demonstrated that appendage vasodilation is flexibly used during rewarming and that recovery may be influenced by both internal temperature and environmental conditions when penguins transition from sea to land. |
author2 |
Département Ecologie, Physiologie et Ethologie (DEPE-IPHC) Institut Pluridisciplinaire Hubert Curien (IPHC) Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS) University of Leeds Department of Biology Lund University University of Glasgow 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) |
format |
Article in Journal/Newspaper |
author |
LEWDEN, Agnès Nord, Andreas Bonnet, Batshéva Chauvet, Florent Ancel, André, Mccafferty, Dominic |
author_facet |
LEWDEN, Agnès Nord, Andreas Bonnet, Batshéva Chauvet, Florent Ancel, André, Mccafferty, Dominic |
author_sort |
LEWDEN, Agnès |
title |
Body surface rewarming in fully and partially hypothermic king penguins |
title_short |
Body surface rewarming in fully and partially hypothermic king penguins |
title_full |
Body surface rewarming in fully and partially hypothermic king penguins |
title_fullStr |
Body surface rewarming in fully and partially hypothermic king penguins |
title_full_unstemmed |
Body surface rewarming in fully and partially hypothermic king penguins |
title_sort |
body surface rewarming in fully and partially hypothermic king penguins |
publisher |
HAL CCSD |
publishDate |
2020 |
url |
https://hal.archives-ouvertes.fr/hal-02902668 https://hal.archives-ouvertes.fr/hal-02902668/document https://hal.archives-ouvertes.fr/hal-02902668/file/Lewden2020_Article_BodySurfaceRewarmingInFullyAnd.pdf https://doi.org/10.1007/s00360-020-01294-1 |
genre |
King Penguins |
genre_facet |
King Penguins |
op_source |
ISSN: 0174-1578 EISSN: 1432-136X Journal of Comparative Physiology B https://hal.archives-ouvertes.fr/hal-02902668 Journal of Comparative Physiology B, Springer Verlag, 2020, 190, pp.597 - 609. ⟨10.1007/s00360-020-01294-1⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1007/s00360-020-01294-1 hal-02902668 https://hal.archives-ouvertes.fr/hal-02902668 https://hal.archives-ouvertes.fr/hal-02902668/document https://hal.archives-ouvertes.fr/hal-02902668/file/Lewden2020_Article_BodySurfaceRewarmingInFullyAnd.pdf doi:10.1007/s00360-020-01294-1 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1007/s00360-020-01294-1 |
container_title |
Journal of Comparative Physiology B |
container_volume |
190 |
container_issue |
5 |
container_start_page |
597 |
op_container_end_page |
609 |
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1766057893573951488 |