Data from: Heart rate during hyperphagia differs between two bear species
Hyperphagia is a critical part of the yearly cycle of bears when they gain fat reserves before entering hibernation. We used heart rate as a proxy to compare the metabolic rate between the Asian black bear (Ursus thibetanus) in Japan and the Eurasian brown bear (Ursus arctos) in Sweden from summer i...
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ftdryad:oai:v1.datadryad.org:10255/dryad.193635 2023-05-15T18:42:03+02:00 Data from: Heart rate during hyperphagia differs between two bear species Fuchs, Boris Yamazaki, Koji Evans, Alina L. Tsubota, Toshio Koike, Shinsuke Naganuma, Tomoko Arnemo, Jon M. Scandinavia Japan 2018-12-19T16:29:35Z http://hdl.handle.net/10255/dryad.193635 https://doi.org/10.5061/dryad.6tt0h5s unknown doi:10.5061/dryad.6tt0h5s/3 doi:10.1098/rsbl.2018.0681 doi:10.5061/dryad.6tt0h5s Fuchs B, Yamazaki K, Evans AL, Tsubota T, Koike S, Naganuma T, Arnemo JM (2019) Heart rate during hyperphagia differs between two bear species. Biology Letters 15(1): 20180681. http://hdl.handle.net/10255/dryad.193635 Hyperphagia Heart rate Asian black bear brown bear Ursus Article 2018 ftdryad https://doi.org/10.5061/dryad.6tt0h5s https://doi.org/10.5061/dryad.6tt0h5s/3 https://doi.org/10.1098/rsbl.2018.0681 2020-01-01T16:16:34Z Hyperphagia is a critical part of the yearly cycle of bears when they gain fat reserves before entering hibernation. We used heart rate as a proxy to compare the metabolic rate between the Asian black bear (Ursus thibetanus) in Japan and the Eurasian brown bear (Ursus arctos) in Sweden from summer in to hibernation. In the hyperphagic period, black bears feed on fat- and carbohydrate-rich hard masts whereas brown bears feed on sugar-rich berries. Availability of hard masts has quantitative and spatial annual fluctuations, which might require increased activity and result in intraspecific stress. Using generalized additive mixed models we analyze the differences in heart rate between the two species. Black bears had decreased heart rates during summer but had doubled heart rate values throughout the hyperphagic period compared to brown bears. This letter illustrates different physiological consequences of seasonal differences in food availability in two species of the same genus dealing with the same phenological challenge. Article in Journal/Newspaper Ursus arctos Dryad Digital Repository (Duke University) |
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Dryad Digital Repository (Duke University) |
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unknown |
topic |
Hyperphagia Heart rate Asian black bear brown bear Ursus |
spellingShingle |
Hyperphagia Heart rate Asian black bear brown bear Ursus Fuchs, Boris Yamazaki, Koji Evans, Alina L. Tsubota, Toshio Koike, Shinsuke Naganuma, Tomoko Arnemo, Jon M. Data from: Heart rate during hyperphagia differs between two bear species |
topic_facet |
Hyperphagia Heart rate Asian black bear brown bear Ursus |
description |
Hyperphagia is a critical part of the yearly cycle of bears when they gain fat reserves before entering hibernation. We used heart rate as a proxy to compare the metabolic rate between the Asian black bear (Ursus thibetanus) in Japan and the Eurasian brown bear (Ursus arctos) in Sweden from summer in to hibernation. In the hyperphagic period, black bears feed on fat- and carbohydrate-rich hard masts whereas brown bears feed on sugar-rich berries. Availability of hard masts has quantitative and spatial annual fluctuations, which might require increased activity and result in intraspecific stress. Using generalized additive mixed models we analyze the differences in heart rate between the two species. Black bears had decreased heart rates during summer but had doubled heart rate values throughout the hyperphagic period compared to brown bears. This letter illustrates different physiological consequences of seasonal differences in food availability in two species of the same genus dealing with the same phenological challenge. |
format |
Article in Journal/Newspaper |
author |
Fuchs, Boris Yamazaki, Koji Evans, Alina L. Tsubota, Toshio Koike, Shinsuke Naganuma, Tomoko Arnemo, Jon M. |
author_facet |
Fuchs, Boris Yamazaki, Koji Evans, Alina L. Tsubota, Toshio Koike, Shinsuke Naganuma, Tomoko Arnemo, Jon M. |
author_sort |
Fuchs, Boris |
title |
Data from: Heart rate during hyperphagia differs between two bear species |
title_short |
Data from: Heart rate during hyperphagia differs between two bear species |
title_full |
Data from: Heart rate during hyperphagia differs between two bear species |
title_fullStr |
Data from: Heart rate during hyperphagia differs between two bear species |
title_full_unstemmed |
Data from: Heart rate during hyperphagia differs between two bear species |
title_sort |
data from: heart rate during hyperphagia differs between two bear species |
publishDate |
2018 |
url |
http://hdl.handle.net/10255/dryad.193635 https://doi.org/10.5061/dryad.6tt0h5s |
op_coverage |
Scandinavia Japan |
genre |
Ursus arctos |
genre_facet |
Ursus arctos |
op_relation |
doi:10.5061/dryad.6tt0h5s/3 doi:10.1098/rsbl.2018.0681 doi:10.5061/dryad.6tt0h5s Fuchs B, Yamazaki K, Evans AL, Tsubota T, Koike S, Naganuma T, Arnemo JM (2019) Heart rate during hyperphagia differs between two bear species. Biology Letters 15(1): 20180681. http://hdl.handle.net/10255/dryad.193635 |
op_doi |
https://doi.org/10.5061/dryad.6tt0h5s https://doi.org/10.5061/dryad.6tt0h5s/3 https://doi.org/10.1098/rsbl.2018.0681 |
_version_ |
1766231654319259648 |