Advances in thermal physiology of diving marine mammals: The dual role of peripheral perfusion
The ability to maintain a high core body temperature is a defining characteristic of all mammals, yet their diverse habitats present disparate thermal challenges that have led to specialized adaptations. Marine mammals inhabit a highly conductive environment. Their thermoregulatory capabilities far...
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ftsmithonian:oai:figshare.com:article/16780048 2023-05-15T16:05:43+02:00 Advances in thermal physiology of diving marine mammals: The dual role of peripheral perfusion Arina B. Favilla (9366683) Markus Horning (187674) Daniel P. Costa (7359032) 2021-10-10T09:00:01Z https://doi.org/10.6084/m9.figshare.16780048.v1 unknown https://figshare.com/articles/journal_contribution/Advances_in_thermal_physiology_of_diving_marine_mammals_The_dual_role_of_peripheral_perfusion/16780048 doi:10.6084/m9.figshare.16780048.v1 CC BY 4.0 CC-BY Cell Biology Physiology Evolutionary Biology Ecology Sociology Marine Biology Inorganic Chemistry Science Policy Environmental Sciences not elsewhere classified Biological Sciences not elsewhere classified Biologging blood flow blubber heat flux seals thermoregulation Text Journal contribution 2021 ftsmithonian https://doi.org/10.6084/m9.figshare.16780048.v1 2021-12-20T00:33:55Z The ability to maintain a high core body temperature is a defining characteristic of all mammals, yet their diverse habitats present disparate thermal challenges that have led to specialized adaptations. Marine mammals inhabit a highly conductive environment. Their thermoregulatory capabilities far exceed our own despite having limited avenues of heat transfer. Additionally, marine mammals must balance their thermoregulatory demands with those associated with diving (i.e. oxygen conservation), both of which rely on cardiovascular adjustments. This review presents the progress and novel efforts in investigating marine mammal thermoregulation, with a particular focus on the role of peripheral perfusion. Early studies in marine mammal thermal physiology were primarily performed in the laboratory and provided foundational knowledge through in vivo experiments and ex vivo measurements. However, the ecological relevance of these findings remains unknown because comparable efforts on free-ranging animals have been limited. We demonstrate the utility of biologgers for studying their thermal adaptations in the context in which they evolved. Our preliminary results from freely diving northern elephant seals ( Mirounga angustirostris ) reveal blubber’s dynamic nature and the complex interaction between thermoregulation and the dive response due to the dual role of peripheral perfusion. Further exploring the potential use of biologgers for measuring physiological variables relevant to thermal physiology in other marine mammal species will enhance our understanding of the relative importance of morphology, physiology, and behavior for thermoregulation and overall homeostasis. Other Non-Article Part of Journal/Newspaper Elephant Seals Unknown |
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Open Polar |
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ftsmithonian |
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Cell Biology Physiology Evolutionary Biology Ecology Sociology Marine Biology Inorganic Chemistry Science Policy Environmental Sciences not elsewhere classified Biological Sciences not elsewhere classified Biologging blood flow blubber heat flux seals thermoregulation |
spellingShingle |
Cell Biology Physiology Evolutionary Biology Ecology Sociology Marine Biology Inorganic Chemistry Science Policy Environmental Sciences not elsewhere classified Biological Sciences not elsewhere classified Biologging blood flow blubber heat flux seals thermoregulation Arina B. Favilla (9366683) Markus Horning (187674) Daniel P. Costa (7359032) Advances in thermal physiology of diving marine mammals: The dual role of peripheral perfusion |
topic_facet |
Cell Biology Physiology Evolutionary Biology Ecology Sociology Marine Biology Inorganic Chemistry Science Policy Environmental Sciences not elsewhere classified Biological Sciences not elsewhere classified Biologging blood flow blubber heat flux seals thermoregulation |
description |
The ability to maintain a high core body temperature is a defining characteristic of all mammals, yet their diverse habitats present disparate thermal challenges that have led to specialized adaptations. Marine mammals inhabit a highly conductive environment. Their thermoregulatory capabilities far exceed our own despite having limited avenues of heat transfer. Additionally, marine mammals must balance their thermoregulatory demands with those associated with diving (i.e. oxygen conservation), both of which rely on cardiovascular adjustments. This review presents the progress and novel efforts in investigating marine mammal thermoregulation, with a particular focus on the role of peripheral perfusion. Early studies in marine mammal thermal physiology were primarily performed in the laboratory and provided foundational knowledge through in vivo experiments and ex vivo measurements. However, the ecological relevance of these findings remains unknown because comparable efforts on free-ranging animals have been limited. We demonstrate the utility of biologgers for studying their thermal adaptations in the context in which they evolved. Our preliminary results from freely diving northern elephant seals ( Mirounga angustirostris ) reveal blubber’s dynamic nature and the complex interaction between thermoregulation and the dive response due to the dual role of peripheral perfusion. Further exploring the potential use of biologgers for measuring physiological variables relevant to thermal physiology in other marine mammal species will enhance our understanding of the relative importance of morphology, physiology, and behavior for thermoregulation and overall homeostasis. |
format |
Other Non-Article Part of Journal/Newspaper |
author |
Arina B. Favilla (9366683) Markus Horning (187674) Daniel P. Costa (7359032) |
author_facet |
Arina B. Favilla (9366683) Markus Horning (187674) Daniel P. Costa (7359032) |
author_sort |
Arina B. Favilla (9366683) |
title |
Advances in thermal physiology of diving marine mammals: The dual role of peripheral perfusion |
title_short |
Advances in thermal physiology of diving marine mammals: The dual role of peripheral perfusion |
title_full |
Advances in thermal physiology of diving marine mammals: The dual role of peripheral perfusion |
title_fullStr |
Advances in thermal physiology of diving marine mammals: The dual role of peripheral perfusion |
title_full_unstemmed |
Advances in thermal physiology of diving marine mammals: The dual role of peripheral perfusion |
title_sort |
advances in thermal physiology of diving marine mammals: the dual role of peripheral perfusion |
publishDate |
2021 |
url |
https://doi.org/10.6084/m9.figshare.16780048.v1 |
genre |
Elephant Seals |
genre_facet |
Elephant Seals |
op_relation |
https://figshare.com/articles/journal_contribution/Advances_in_thermal_physiology_of_diving_marine_mammals_The_dual_role_of_peripheral_perfusion/16780048 doi:10.6084/m9.figshare.16780048.v1 |
op_rights |
CC BY 4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.6084/m9.figshare.16780048.v1 |
_version_ |
1766401624801017856 |