Supplementary material 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 summ...
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ftdatacite:10.6084/m9.figshare.c.4350665 2023-05-15T18:42:03+02:00 Supplementary material 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. 2018 https://dx.doi.org/10.6084/m9.figshare.c.4350665 https://rs.figshare.com/collections/Supplementary_material_from_Heart_rate_during_hyperphagia_differs_between_two_bear_species_/4350665 unknown Figshare https://dx.doi.org/10.1098/rsbl.2018.0681 CC BY 4.0 https://creativecommons.org/licenses/by/4.0 CC-BY Ecology FOS Biological sciences Collection article 2018 ftdatacite https://doi.org/10.6084/m9.figshare.c.4350665 https://doi.org/10.1098/rsbl.2018.0681 2021-11-05T12:55:41Z 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 into 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 analyse 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 DataCite Metadata Store (German National Library of Science and Technology) |
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Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
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language |
unknown |
topic |
Ecology FOS Biological sciences |
spellingShingle |
Ecology FOS Biological sciences Fuchs, Boris Yamazaki, Koji Evans, Alina L. Tsubota, Toshio Koike, Shinsuke Naganuma, Tomoko Arnemo, Jon M. Supplementary material from "Heart rate during hyperphagia differs between two bear species" |
topic_facet |
Ecology FOS Biological sciences |
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 into 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 analyse 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 |
Supplementary material from "Heart rate during hyperphagia differs between two bear species" |
title_short |
Supplementary material from "Heart rate during hyperphagia differs between two bear species" |
title_full |
Supplementary material from "Heart rate during hyperphagia differs between two bear species" |
title_fullStr |
Supplementary material from "Heart rate during hyperphagia differs between two bear species" |
title_full_unstemmed |
Supplementary material from "Heart rate during hyperphagia differs between two bear species" |
title_sort |
supplementary material from "heart rate during hyperphagia differs between two bear species" |
publisher |
Figshare |
publishDate |
2018 |
url |
https://dx.doi.org/10.6084/m9.figshare.c.4350665 https://rs.figshare.com/collections/Supplementary_material_from_Heart_rate_during_hyperphagia_differs_between_two_bear_species_/4350665 |
genre |
Ursus arctos |
genre_facet |
Ursus arctos |
op_relation |
https://dx.doi.org/10.1098/rsbl.2018.0681 |
op_rights |
CC BY 4.0 https://creativecommons.org/licenses/by/4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.6084/m9.figshare.c.4350665 https://doi.org/10.1098/rsbl.2018.0681 |
_version_ |
1766231650858958848 |