Increases in body weight and nutritional status of transplanted Alaskan caribou
Body weight and natality rate in ungulates can be useful indices to nutririon, bur they may also be influenced by genetic and climatic factors. Because caribou {Rangifer tarandus granti) are distributed as discrete populations of metapopulations (i.e., herds) that are usually reproductively isolated...
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Septentrio Academic Publishing
2000
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ftunitroemsoe:oai:ojs.henry.ub.uit.no:article/1638 2023-05-15T18:03:55+02:00 Increases in body weight and nutritional status of transplanted Alaskan caribou Valkenburg, Patrick Spraker, Ted H. Hinkes, Michael T. Van Daele, Lawrence H. Tobey, Robert W. Sellers, Richard A. 2000-04-01 application/pdf https://septentrio.uit.no/index.php/rangifer/article/view/1638 https://doi.org/10.7557/2.20.5.1638 eng eng Septentrio Academic Publishing https://septentrio.uit.no/index.php/rangifer/article/view/1638/1537 https://septentrio.uit.no/index.php/rangifer/article/view/1638 doi:10.7557/2.20.5.1638 Copyright (c) 2015 Patrick Valkenburg, Ted H. Spraker, Michael T. Hinkes, Lawrence H. Van Daele, Robert W. Tobey, Richard A. Sellers http://creativecommons.org/licenses/by/3.0/ CC-BY Rangifer; Vol 20 (2000): Special Issue No. 12; 133-138 1890-6729 caribou body weight natality Rangifer tarandus granti info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2000 ftunitroemsoe https://doi.org/10.7557/2.20.5.1638 2021-08-16T15:03:24Z Body weight and natality rate in ungulates can be useful indices to nutririon, bur they may also be influenced by genetic and climatic factors. Because caribou {Rangifer tarandus granti) are distributed as discrete populations of metapopulations (i.e., herds) that are usually reproductively isolated from each other for unknown periods, it is difficult to separate the influence of genetics and nutrition on body weight, especially where historical data are lacking. To help elucidate the influence of nutrition on potential variation in body weight and natality of caribou in Alaska, we reviewed data for body weight and natality in 5 populations which resulted from Transplants to previously ungrazed ranges, or to areas where reindeer and caribou had been absent for many decades. In 2 of 5 populations body weight increased significantly, and likely increased in the other 3 populations, but data were insufficient. Natality rate increased in all 5 populations, proportion of fecund yearlings was high and 3 of the 5 newly established herds increased at about the maximum biological potential for the species (lambda=1.35). In the Adak transplant, a lactating yearling was documented. These 5 transplanted populations provide additional evidence that body weight and natality rate in Alaskan caribou are sensitive to changes in population density and relatively short-term (i.e., 10 years) increases in grazing pressure independenr of climate and genetics. Article in Journal/Newspaper Rangifer Rangifer tarandus Alaska University of Tromsø: Septentrio Academic Publishing Adak ENVELOPE(59.561,59.561,66.502,66.502) Lambda ENVELOPE(-62.983,-62.983,-64.300,-64.300) Rangifer 20 5 133 |
institution |
Open Polar |
collection |
University of Tromsø: Septentrio Academic Publishing |
op_collection_id |
ftunitroemsoe |
language |
English |
topic |
caribou body weight natality Rangifer tarandus granti |
spellingShingle |
caribou body weight natality Rangifer tarandus granti Valkenburg, Patrick Spraker, Ted H. Hinkes, Michael T. Van Daele, Lawrence H. Tobey, Robert W. Sellers, Richard A. Increases in body weight and nutritional status of transplanted Alaskan caribou |
topic_facet |
caribou body weight natality Rangifer tarandus granti |
description |
Body weight and natality rate in ungulates can be useful indices to nutririon, bur they may also be influenced by genetic and climatic factors. Because caribou {Rangifer tarandus granti) are distributed as discrete populations of metapopulations (i.e., herds) that are usually reproductively isolated from each other for unknown periods, it is difficult to separate the influence of genetics and nutrition on body weight, especially where historical data are lacking. To help elucidate the influence of nutrition on potential variation in body weight and natality of caribou in Alaska, we reviewed data for body weight and natality in 5 populations which resulted from Transplants to previously ungrazed ranges, or to areas where reindeer and caribou had been absent for many decades. In 2 of 5 populations body weight increased significantly, and likely increased in the other 3 populations, but data were insufficient. Natality rate increased in all 5 populations, proportion of fecund yearlings was high and 3 of the 5 newly established herds increased at about the maximum biological potential for the species (lambda=1.35). In the Adak transplant, a lactating yearling was documented. These 5 transplanted populations provide additional evidence that body weight and natality rate in Alaskan caribou are sensitive to changes in population density and relatively short-term (i.e., 10 years) increases in grazing pressure independenr of climate and genetics. |
format |
Article in Journal/Newspaper |
author |
Valkenburg, Patrick Spraker, Ted H. Hinkes, Michael T. Van Daele, Lawrence H. Tobey, Robert W. Sellers, Richard A. |
author_facet |
Valkenburg, Patrick Spraker, Ted H. Hinkes, Michael T. Van Daele, Lawrence H. Tobey, Robert W. Sellers, Richard A. |
author_sort |
Valkenburg, Patrick |
title |
Increases in body weight and nutritional status of transplanted Alaskan caribou |
title_short |
Increases in body weight and nutritional status of transplanted Alaskan caribou |
title_full |
Increases in body weight and nutritional status of transplanted Alaskan caribou |
title_fullStr |
Increases in body weight and nutritional status of transplanted Alaskan caribou |
title_full_unstemmed |
Increases in body weight and nutritional status of transplanted Alaskan caribou |
title_sort |
increases in body weight and nutritional status of transplanted alaskan caribou |
publisher |
Septentrio Academic Publishing |
publishDate |
2000 |
url |
https://septentrio.uit.no/index.php/rangifer/article/view/1638 https://doi.org/10.7557/2.20.5.1638 |
long_lat |
ENVELOPE(59.561,59.561,66.502,66.502) ENVELOPE(-62.983,-62.983,-64.300,-64.300) |
geographic |
Adak Lambda |
geographic_facet |
Adak Lambda |
genre |
Rangifer Rangifer tarandus Alaska |
genre_facet |
Rangifer Rangifer tarandus Alaska |
op_source |
Rangifer; Vol 20 (2000): Special Issue No. 12; 133-138 1890-6729 |
op_relation |
https://septentrio.uit.no/index.php/rangifer/article/view/1638/1537 https://septentrio.uit.no/index.php/rangifer/article/view/1638 doi:10.7557/2.20.5.1638 |
op_rights |
Copyright (c) 2015 Patrick Valkenburg, Ted H. Spraker, Michael T. Hinkes, Lawrence H. Van Daele, Robert W. Tobey, Richard A. Sellers http://creativecommons.org/licenses/by/3.0/ |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.7557/2.20.5.1638 |
container_title |
Rangifer |
container_volume |
20 |
container_issue |
5 |
container_start_page |
133 |
_version_ |
1766175120348413952 |