Estimating the daily dry matter intake of Svalbard reindeer in late winter
Svalbard reindeer (Rangifer tarandus platyrhynchus) store large reserves of subcutaneous fat during summer and autumn which, it has been suggested, might be sufficient to meet a substantial part of their energy requirements during winter. An alternative suggestion, however, is that fat is not their...
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Language: | English |
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Septentrio Academic Publishing
1987
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Online Access: | https://septentrio.uit.no/index.php/rangifer/article/view/701 https://doi.org/10.7557/2.7.1.701 |
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ftunitroemsoe:oai:ojs.henry.ub.uit.no:article/701 2023-05-15T15:05:57+02:00 Estimating the daily dry matter intake of Svalbard reindeer in late winter Tyler, Nicholas 1987-06-01 application/pdf https://septentrio.uit.no/index.php/rangifer/article/view/701 https://doi.org/10.7557/2.7.1.701 eng eng Septentrio Academic Publishing https://septentrio.uit.no/index.php/rangifer/article/view/701/665 https://septentrio.uit.no/index.php/rangifer/article/view/701 doi:10.7557/2.7.1.701 Copyright (c) 2015 Nicholas Tyler http://creativecommons.org/licenses/by/3.0/ CC-BY Rangifer; Årg 7 Nr 1 (1987); 29-32 Rangifer; Vol 7 No 1 (1987); 29-32 1890-6729 food intake energy balance Rangifer Svalbard reindeer info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 1987 ftunitroemsoe https://doi.org/10.7557/2.7.1.701 2021-08-16T14:34:51Z Svalbard reindeer (Rangifer tarandus platyrhynchus) store large reserves of subcutaneous fat during summer and autumn which, it has been suggested, might be sufficient to meet a substantial part of their energy requirements during winter. An alternative suggestion, however, is that fat is not their main source of energy after all and, moreover, that the principal role of their fat reserves is for enhancing reproductive success rather than for substituting for forage (Tyler, in press). Is it realistic to suggest that these high arctic herbivores could meet the greater part of their energy requirements in winter by feeding, given that the aerial biomass of available forage in Svalbard in late winter is very low? This question was investigated by using a simple model to predict what rate of food intake Svalbard reindeer would have to achieve to maintain energy balance in late winter. The results were surprisingly low: pregnant and nonpregnant females could mett their daily energy demands by consuming 3.1 and 1.7 g dry matter per grazing minute, respectively. This supports the suggestion that Svalbard reindeer could live principally off forage in winter. Article in Journal/Newspaper Arctic Rangifer Rangifer tarandus Rangifer tarandus platyrhynchus Svalbard svalbard reindeer University of Tromsø: Septentrio Academic Publishing Arctic Svalbard Rangifer 7 1 29 |
institution |
Open Polar |
collection |
University of Tromsø: Septentrio Academic Publishing |
op_collection_id |
ftunitroemsoe |
language |
English |
topic |
food intake energy balance Rangifer Svalbard reindeer |
spellingShingle |
food intake energy balance Rangifer Svalbard reindeer Tyler, Nicholas Estimating the daily dry matter intake of Svalbard reindeer in late winter |
topic_facet |
food intake energy balance Rangifer Svalbard reindeer |
description |
Svalbard reindeer (Rangifer tarandus platyrhynchus) store large reserves of subcutaneous fat during summer and autumn which, it has been suggested, might be sufficient to meet a substantial part of their energy requirements during winter. An alternative suggestion, however, is that fat is not their main source of energy after all and, moreover, that the principal role of their fat reserves is for enhancing reproductive success rather than for substituting for forage (Tyler, in press). Is it realistic to suggest that these high arctic herbivores could meet the greater part of their energy requirements in winter by feeding, given that the aerial biomass of available forage in Svalbard in late winter is very low? This question was investigated by using a simple model to predict what rate of food intake Svalbard reindeer would have to achieve to maintain energy balance in late winter. The results were surprisingly low: pregnant and nonpregnant females could mett their daily energy demands by consuming 3.1 and 1.7 g dry matter per grazing minute, respectively. This supports the suggestion that Svalbard reindeer could live principally off forage in winter. |
format |
Article in Journal/Newspaper |
author |
Tyler, Nicholas |
author_facet |
Tyler, Nicholas |
author_sort |
Tyler, Nicholas |
title |
Estimating the daily dry matter intake of Svalbard reindeer in late winter |
title_short |
Estimating the daily dry matter intake of Svalbard reindeer in late winter |
title_full |
Estimating the daily dry matter intake of Svalbard reindeer in late winter |
title_fullStr |
Estimating the daily dry matter intake of Svalbard reindeer in late winter |
title_full_unstemmed |
Estimating the daily dry matter intake of Svalbard reindeer in late winter |
title_sort |
estimating the daily dry matter intake of svalbard reindeer in late winter |
publisher |
Septentrio Academic Publishing |
publishDate |
1987 |
url |
https://septentrio.uit.no/index.php/rangifer/article/view/701 https://doi.org/10.7557/2.7.1.701 |
geographic |
Arctic Svalbard |
geographic_facet |
Arctic Svalbard |
genre |
Arctic Rangifer Rangifer tarandus Rangifer tarandus platyrhynchus Svalbard svalbard reindeer |
genre_facet |
Arctic Rangifer Rangifer tarandus Rangifer tarandus platyrhynchus Svalbard svalbard reindeer |
op_source |
Rangifer; Årg 7 Nr 1 (1987); 29-32 Rangifer; Vol 7 No 1 (1987); 29-32 1890-6729 |
op_relation |
https://septentrio.uit.no/index.php/rangifer/article/view/701/665 https://septentrio.uit.no/index.php/rangifer/article/view/701 doi:10.7557/2.7.1.701 |
op_rights |
Copyright (c) 2015 Nicholas Tyler http://creativecommons.org/licenses/by/3.0/ |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.7557/2.7.1.701 |
container_title |
Rangifer |
container_volume |
7 |
container_issue |
1 |
container_start_page |
29 |
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1766337634234269696 |