The use of infrared thermography to noninvasively measure the surface temperature of polar bears during bouts of social play
Abstract Infrared thermography or thermal imagery is a noninvasive tool that can be used to measure the temperature of surfaces. Typically, thermal imagery is used for construction or military purposes but is increasingly used as a noninvasive tool in wildlife studies. We investigated the use of the...
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crwiley:10.1002/zoo.21722 2024-06-02T08:15:41+00:00 The use of infrared thermography to noninvasively measure the surface temperature of polar bears during bouts of social play Bissonnette, Paige B. Waterman, Jane M. Petersen, Stephen D. Mitacs Churchill Northern Studies Centre 2022 http://dx.doi.org/10.1002/zoo.21722 https://onlinelibrary.wiley.com/doi/pdf/10.1002/zoo.21722 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/zoo.21722 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Zoo Biology volume 42, issue 1, page 38-44 ISSN 0733-3188 1098-2361 journal-article 2022 crwiley https://doi.org/10.1002/zoo.21722 2024-05-03T11:34:34Z Abstract Infrared thermography or thermal imagery is a noninvasive tool that can be used to measure the temperature of surfaces. Typically, thermal imagery is used for construction or military purposes but is increasingly used as a noninvasive tool in wildlife studies. We investigated the use of thermal imagery to measure surface temperature changes as a proxy for energetic expenditure. We measured the surface temperature of polar bear ( Ursus maritimus ) eyes, while immobilized, to determine whether the eye is a thermal window that can accurately indicate internal temperature. We found a significant difference (2.68 ± 0.41°C) between the surface temperature of the eye measured with thermal imagery and the internal rectal temperature. Additionally, we measured surface temperature changes in polar bears after bouts of social play as a proxy for energy expenditure. Mean temperature of the eye increased by 1.34 ± 0.43°C after social play, indicating that this activity increased energy expenditure. During the fasting season, polar bears rely on fat stores, and any energy expenditure beyond what is required to travel may be costly to their survival, particularly in years of low resource availability. We conclude that thermal imagery is a useful tool to noninvasively investigate the energetics of social play. Article in Journal/Newspaper Ursus maritimus Wiley Online Library Zoo Biology 42 1 38 44 |
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Wiley Online Library |
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crwiley |
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English |
description |
Abstract Infrared thermography or thermal imagery is a noninvasive tool that can be used to measure the temperature of surfaces. Typically, thermal imagery is used for construction or military purposes but is increasingly used as a noninvasive tool in wildlife studies. We investigated the use of thermal imagery to measure surface temperature changes as a proxy for energetic expenditure. We measured the surface temperature of polar bear ( Ursus maritimus ) eyes, while immobilized, to determine whether the eye is a thermal window that can accurately indicate internal temperature. We found a significant difference (2.68 ± 0.41°C) between the surface temperature of the eye measured with thermal imagery and the internal rectal temperature. Additionally, we measured surface temperature changes in polar bears after bouts of social play as a proxy for energy expenditure. Mean temperature of the eye increased by 1.34 ± 0.43°C after social play, indicating that this activity increased energy expenditure. During the fasting season, polar bears rely on fat stores, and any energy expenditure beyond what is required to travel may be costly to their survival, particularly in years of low resource availability. We conclude that thermal imagery is a useful tool to noninvasively investigate the energetics of social play. |
author2 |
Mitacs Churchill Northern Studies Centre |
format |
Article in Journal/Newspaper |
author |
Bissonnette, Paige B. Waterman, Jane M. Petersen, Stephen D. |
spellingShingle |
Bissonnette, Paige B. Waterman, Jane M. Petersen, Stephen D. The use of infrared thermography to noninvasively measure the surface temperature of polar bears during bouts of social play |
author_facet |
Bissonnette, Paige B. Waterman, Jane M. Petersen, Stephen D. |
author_sort |
Bissonnette, Paige B. |
title |
The use of infrared thermography to noninvasively measure the surface temperature of polar bears during bouts of social play |
title_short |
The use of infrared thermography to noninvasively measure the surface temperature of polar bears during bouts of social play |
title_full |
The use of infrared thermography to noninvasively measure the surface temperature of polar bears during bouts of social play |
title_fullStr |
The use of infrared thermography to noninvasively measure the surface temperature of polar bears during bouts of social play |
title_full_unstemmed |
The use of infrared thermography to noninvasively measure the surface temperature of polar bears during bouts of social play |
title_sort |
use of infrared thermography to noninvasively measure the surface temperature of polar bears during bouts of social play |
publisher |
Wiley |
publishDate |
2022 |
url |
http://dx.doi.org/10.1002/zoo.21722 https://onlinelibrary.wiley.com/doi/pdf/10.1002/zoo.21722 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/zoo.21722 |
genre |
Ursus maritimus |
genre_facet |
Ursus maritimus |
op_source |
Zoo Biology volume 42, issue 1, page 38-44 ISSN 0733-3188 1098-2361 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/zoo.21722 |
container_title |
Zoo Biology |
container_volume |
42 |
container_issue |
1 |
container_start_page |
38 |
op_container_end_page |
44 |
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1800739943324057600 |