Denning in brown bears
Hibernation represents an adaptation for coping with unfavorable environmental conditions. For brown bears Ursus arctos, hibernation is a critical period as pronounced temporal reductions in several physiological functions occur. Here, we review the three main aspects of brown bear denning: (1) den...
Published in: | Ecology and Evolution |
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Format: | Article in Journal/Newspaper |
Language: | English |
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John Wiley & Sons
2020
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Online Access: | http://hdl.handle.net/10261/224618 https://doi.org/10.1002/ece3.6372 https://doi.org/10.13039/501100011033 https://doi.org/10.13039/501100000780 https://doi.org/10.13039/501100003176 https://doi.org/10.13039/100011941 |
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ftcsic:oai:digital.csic.es:10261/224618 2024-02-11T10:09:19+01:00 Denning in brown bears González-Bernardo, Enrique Russo, Luca Francesco Valderrábano, Esther Fernández, Ángel Penteriani, Vincenzo Ministerio de Educación, Cultura y Deporte (España) Ministerio de Ciencia, Innovación y Universidades (España) Agencia Estatal de Investigación (España) European Commission Principado de Asturias 2020-07 http://hdl.handle.net/10261/224618 https://doi.org/10.1002/ece3.6372 https://doi.org/10.13039/501100011033 https://doi.org/10.13039/501100000780 https://doi.org/10.13039/501100003176 https://doi.org/10.13039/100011941 en eng John Wiley & Sons #PLACEHOLDER_PARENT_METADATA_VALUE# info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/FPU15‐03429 info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/CGL2017‐82782‐P CGL2017‐82782‐P/AEI/10.13039/501100011033 Publisher's version http://dx.doi.org/10.1002/ece3.6372 Sí Ecology and Evolution 10(13): 6844-6862 (2020) http://hdl.handle.net/10261/224618 doi:10.1002/ece3.6372 2045-7758 http://dx.doi.org/10.13039/501100011033 http://dx.doi.org/10.13039/501100000780 http://dx.doi.org/10.13039/501100003176 http://dx.doi.org/10.13039/100011941 32724555 open Ursus arctos Physiology Climate change Den chronology Den selection Hibernation artículo http://purl.org/coar/resource_type/c_6501 2020 ftcsic https://doi.org/10.1002/ece3.637210.13039/50110001103310.13039/50110000078010.13039/50110000317610.13039/100011941 2024-01-16T11:00:16Z Hibernation represents an adaptation for coping with unfavorable environmental conditions. For brown bears Ursus arctos, hibernation is a critical period as pronounced temporal reductions in several physiological functions occur. Here, we review the three main aspects of brown bear denning: (1) den chronology, (2) den characteristics, and (3) hibernation physiology in order to identify (a) proximate and ultimate factors of hibernation as well as (b) research gaps and conservation priorities. Den chronology, which varies by sex and reproductive status, depends on environmental factors, such as snow, temperature, food availability, and den altitude. Significant variation in hibernation across latitudes occurs for both den entry and exit. The choice of a den and its surroundings may affect individual fitness, for example, loss of offspring and excessive energy consumption. Den selection is the result of broad‐ and fine‐scale habitat selection, mainly linked to den insulation, remoteness, and availability of food in the surroundings of the den location. Hibernation is a metabolic challenge for the brown bears, in which a series of physiological adaptations in tissues and organs enable survival under nutritional deprivation, maintain high levels of lipids, preserve muscle, and bone and prevent cardiovascular pathologies such as atherosclerosis. It is important to understand: (a) proximate and ultimate factors in denning behavior and the difference between actual drivers of hibernation (i.e., factors to which bears directly respond) and their correlates; (b) how changes in climatic factors might affect the ability of bears to face global climate change and the human‐mediated changes in food availability; (c) hyperphagia (period in which brown bears accumulate fat reserves), predenning and denning periods, including for those populations in which bears do not hibernate every year; and (d) how to approach the study of bear denning merging insights from different perspectives, that is, physiology, ecology, and behavior. ... Article in Journal/Newspaper Ursus arctos Digital.CSIC (Spanish National Research Council) Ecology and Evolution 10 13 6844 6862 |
institution |
Open Polar |
collection |
Digital.CSIC (Spanish National Research Council) |
op_collection_id |
ftcsic |
language |
English |
topic |
Ursus arctos Physiology Climate change Den chronology Den selection Hibernation |
spellingShingle |
Ursus arctos Physiology Climate change Den chronology Den selection Hibernation González-Bernardo, Enrique Russo, Luca Francesco Valderrábano, Esther Fernández, Ángel Penteriani, Vincenzo Denning in brown bears |
topic_facet |
Ursus arctos Physiology Climate change Den chronology Den selection Hibernation |
description |
Hibernation represents an adaptation for coping with unfavorable environmental conditions. For brown bears Ursus arctos, hibernation is a critical period as pronounced temporal reductions in several physiological functions occur. Here, we review the three main aspects of brown bear denning: (1) den chronology, (2) den characteristics, and (3) hibernation physiology in order to identify (a) proximate and ultimate factors of hibernation as well as (b) research gaps and conservation priorities. Den chronology, which varies by sex and reproductive status, depends on environmental factors, such as snow, temperature, food availability, and den altitude. Significant variation in hibernation across latitudes occurs for both den entry and exit. The choice of a den and its surroundings may affect individual fitness, for example, loss of offspring and excessive energy consumption. Den selection is the result of broad‐ and fine‐scale habitat selection, mainly linked to den insulation, remoteness, and availability of food in the surroundings of the den location. Hibernation is a metabolic challenge for the brown bears, in which a series of physiological adaptations in tissues and organs enable survival under nutritional deprivation, maintain high levels of lipids, preserve muscle, and bone and prevent cardiovascular pathologies such as atherosclerosis. It is important to understand: (a) proximate and ultimate factors in denning behavior and the difference between actual drivers of hibernation (i.e., factors to which bears directly respond) and their correlates; (b) how changes in climatic factors might affect the ability of bears to face global climate change and the human‐mediated changes in food availability; (c) hyperphagia (period in which brown bears accumulate fat reserves), predenning and denning periods, including for those populations in which bears do not hibernate every year; and (d) how to approach the study of bear denning merging insights from different perspectives, that is, physiology, ecology, and behavior. ... |
author2 |
Ministerio de Educación, Cultura y Deporte (España) Ministerio de Ciencia, Innovación y Universidades (España) Agencia Estatal de Investigación (España) European Commission Principado de Asturias |
format |
Article in Journal/Newspaper |
author |
González-Bernardo, Enrique Russo, Luca Francesco Valderrábano, Esther Fernández, Ángel Penteriani, Vincenzo |
author_facet |
González-Bernardo, Enrique Russo, Luca Francesco Valderrábano, Esther Fernández, Ángel Penteriani, Vincenzo |
author_sort |
González-Bernardo, Enrique |
title |
Denning in brown bears |
title_short |
Denning in brown bears |
title_full |
Denning in brown bears |
title_fullStr |
Denning in brown bears |
title_full_unstemmed |
Denning in brown bears |
title_sort |
denning in brown bears |
publisher |
John Wiley & Sons |
publishDate |
2020 |
url |
http://hdl.handle.net/10261/224618 https://doi.org/10.1002/ece3.6372 https://doi.org/10.13039/501100011033 https://doi.org/10.13039/501100000780 https://doi.org/10.13039/501100003176 https://doi.org/10.13039/100011941 |
genre |
Ursus arctos |
genre_facet |
Ursus arctos |
op_relation |
#PLACEHOLDER_PARENT_METADATA_VALUE# info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/FPU15‐03429 info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/CGL2017‐82782‐P CGL2017‐82782‐P/AEI/10.13039/501100011033 Publisher's version http://dx.doi.org/10.1002/ece3.6372 Sí Ecology and Evolution 10(13): 6844-6862 (2020) http://hdl.handle.net/10261/224618 doi:10.1002/ece3.6372 2045-7758 http://dx.doi.org/10.13039/501100011033 http://dx.doi.org/10.13039/501100000780 http://dx.doi.org/10.13039/501100003176 http://dx.doi.org/10.13039/100011941 32724555 |
op_rights |
open |
op_doi |
https://doi.org/10.1002/ece3.637210.13039/50110001103310.13039/50110000078010.13039/50110000317610.13039/100011941 |
container_title |
Ecology and Evolution |
container_volume |
10 |
container_issue |
13 |
container_start_page |
6844 |
op_container_end_page |
6862 |
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1790609157939789824 |