Metabolic strategies for winter survival by Svalbard reindeer
Lying and standing metabolic rates were determined for two tame Svalbard reindeer while the animals were in their winter lethargic state during January and February. Mean nonfasting metabolic rates for the 59-kg animals were 1.25 W∙kg −1 for lying and 1.64 W∙kg −1 for standing at rest. So the metabo...
Published in: | Canadian Journal of Zoology |
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Language: | English |
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Canadian Science Publishing
1993
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Online Access: | http://dx.doi.org/10.1139/z93-254 http://www.nrcresearchpress.com/doi/pdf/10.1139/z93-254 |
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crcansciencepubl:10.1139/z93-254 2023-12-17T10:28:46+01:00 Metabolic strategies for winter survival by Svalbard reindeer Cuyler, L. C. Øritsland, N. A. 1993 http://dx.doi.org/10.1139/z93-254 http://www.nrcresearchpress.com/doi/pdf/10.1139/z93-254 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Zoology volume 71, issue 9, page 1787-1792 ISSN 0008-4301 1480-3283 Animal Science and Zoology Ecology, Evolution, Behavior and Systematics journal-article 1993 crcansciencepubl https://doi.org/10.1139/z93-254 2023-11-19T13:38:25Z Lying and standing metabolic rates were determined for two tame Svalbard reindeer while the animals were in their winter lethargic state during January and February. Mean nonfasting metabolic rates for the 59-kg animals were 1.25 W∙kg −1 for lying and 1.64 W∙kg −1 for standing at rest. So the metabolic rate for standing at rest was about 1.3 times the lying resting metabolic rate (RMR). For Svalbard reindeer the lying RMR was 66–78% of the values for other reindeer/caribou, and was 78–89% of the predicted value. The standing RMR was 44–88% of the values from other reindeer/caribou. Total body thermal conductance was 1.95 ± 0.17 W∙°C −1 for lying and 3.08 ± 0.77 W∙°C −1 for standing at rest. The daily energy expenditure during winter was estimated to be about 9654 kJ∙day −1 or 112 W, and was 1.5 times Kleiber's predicted basal metabolic rate. By remaining lying 45% of the time rather than 35% Svalbard reindeer may conserve the equivalent of about 15 days' energy requirement over the winter. With locomotion at 2% of the winter daily activity budget, the Svalbard reindeer conserve about 21 days' energy expenditure, more than that if locomotion were 8.2% of the budget as in caribou (Boertje 1985). Thus, their low energy expenditures for lying and standing and their sedentary activity budget may be considered energy-saving and survival strategies. It is possible that disturbances, which cause the animals to increase activity, may have a detrimental effect on their overall winter energy balance. Article in Journal/Newspaper caribou Svalbard svalbard reindeer Canadian Science Publishing (via Crossref) Svalbard Canadian Journal of Zoology 71 9 1787 1792 |
institution |
Open Polar |
collection |
Canadian Science Publishing (via Crossref) |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics Cuyler, L. C. Øritsland, N. A. Metabolic strategies for winter survival by Svalbard reindeer |
topic_facet |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics |
description |
Lying and standing metabolic rates were determined for two tame Svalbard reindeer while the animals were in their winter lethargic state during January and February. Mean nonfasting metabolic rates for the 59-kg animals were 1.25 W∙kg −1 for lying and 1.64 W∙kg −1 for standing at rest. So the metabolic rate for standing at rest was about 1.3 times the lying resting metabolic rate (RMR). For Svalbard reindeer the lying RMR was 66–78% of the values for other reindeer/caribou, and was 78–89% of the predicted value. The standing RMR was 44–88% of the values from other reindeer/caribou. Total body thermal conductance was 1.95 ± 0.17 W∙°C −1 for lying and 3.08 ± 0.77 W∙°C −1 for standing at rest. The daily energy expenditure during winter was estimated to be about 9654 kJ∙day −1 or 112 W, and was 1.5 times Kleiber's predicted basal metabolic rate. By remaining lying 45% of the time rather than 35% Svalbard reindeer may conserve the equivalent of about 15 days' energy requirement over the winter. With locomotion at 2% of the winter daily activity budget, the Svalbard reindeer conserve about 21 days' energy expenditure, more than that if locomotion were 8.2% of the budget as in caribou (Boertje 1985). Thus, their low energy expenditures for lying and standing and their sedentary activity budget may be considered energy-saving and survival strategies. It is possible that disturbances, which cause the animals to increase activity, may have a detrimental effect on their overall winter energy balance. |
format |
Article in Journal/Newspaper |
author |
Cuyler, L. C. Øritsland, N. A. |
author_facet |
Cuyler, L. C. Øritsland, N. A. |
author_sort |
Cuyler, L. C. |
title |
Metabolic strategies for winter survival by Svalbard reindeer |
title_short |
Metabolic strategies for winter survival by Svalbard reindeer |
title_full |
Metabolic strategies for winter survival by Svalbard reindeer |
title_fullStr |
Metabolic strategies for winter survival by Svalbard reindeer |
title_full_unstemmed |
Metabolic strategies for winter survival by Svalbard reindeer |
title_sort |
metabolic strategies for winter survival by svalbard reindeer |
publisher |
Canadian Science Publishing |
publishDate |
1993 |
url |
http://dx.doi.org/10.1139/z93-254 http://www.nrcresearchpress.com/doi/pdf/10.1139/z93-254 |
geographic |
Svalbard |
geographic_facet |
Svalbard |
genre |
caribou Svalbard svalbard reindeer |
genre_facet |
caribou Svalbard svalbard reindeer |
op_source |
Canadian Journal of Zoology volume 71, issue 9, page 1787-1792 ISSN 0008-4301 1480-3283 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/z93-254 |
container_title |
Canadian Journal of Zoology |
container_volume |
71 |
container_issue |
9 |
container_start_page |
1787 |
op_container_end_page |
1792 |
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1785580948813774848 |