Calving distribution of the Teshekpuk caribou herd, 1994-2003
Parturient female caribou from the Teshekpuk caribou (Rangifer tarandus granti) herd (TCH) have been observed across the western North Slope, but most cows that were seen with calves during the calving period were in the area surrounding Teshekpuk Lake. During surveys conducted between 1994 and 2003...
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Septentrio Academic Publishing
2005
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Online Access: | https://doi.org/10.7557/2.25.4.1767 https://doaj.org/article/e1b4ea22ddab4e009ea73c7856885e4f |
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ftdoajarticles:oai:doaj.org/article:e1b4ea22ddab4e009ea73c7856885e4f 2023-05-15T15:53:28+02:00 Calving distribution of the Teshekpuk caribou herd, 1994-2003 Geoff M. Carroll Lincoln S. Parrett J. Craig George Dave A. Yokel 2005-05-01T00:00:00Z https://doi.org/10.7557/2.25.4.1767 https://doaj.org/article/e1b4ea22ddab4e009ea73c7856885e4f EN eng Septentrio Academic Publishing https://septentrio.uit.no/index.php/rangifer/article/view/1767 https://doaj.org/toc/1890-6729 doi:10.7557/2.25.4.1767 1890-6729 https://doaj.org/article/e1b4ea22ddab4e009ea73c7856885e4f Rangifer, Vol 25, Iss 4 (2005) Alaska Teshekpuk caribou herd barren-ground caribou caribou calving coastal plain petroleum development Animal culture SF1-1100 article 2005 ftdoajarticles https://doi.org/10.7557/2.25.4.1767 2022-12-31T00:29:59Z Parturient female caribou from the Teshekpuk caribou (Rangifer tarandus granti) herd (TCH) have been observed across the western North Slope, but most cows that were seen with calves during the calving period were in the area surrounding Teshekpuk Lake. During surveys conducted between 1994 and 2003, 155 (91%) of 171 collared cows seen with calves were within an area given protected status in the 1998 Bureau of Land Management Final Integrated Activity Plan/Environmental Impact Statement (IAP/EIS). The percentage of adult collared cows seen with a calf between 1994 and 2003 has ranged from 44% to 86%, with a mean of 66%. The years with the lowest percentage of collared cows seen with calves were 1997 (50%) and 2001 (44%). In 1997 most of the herd migrated much farther south than usual, and in 2001 unusually deep, persistent snow restricted spring migration, resulting in fewer cows returning to the traditional calving area during the calving period. When snowmelt dates were earlier, calving locations were farther north. Average standardized travel rates for parturient cows were significantly greater before they had calves (7.25 km/day) than after 3.89 (km/day). Geographically, protections granted by the 1998 BLM IAP/EIS appear to adequately cover the concentrated calving grounds, allowing for variance in the annual distribution of calving cows. Article in Journal/Newspaper caribou north slope Rangifer Rangifer tarandus Alaska Directory of Open Access Journals: DOAJ Articles Rangifer 25 4 27 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Alaska Teshekpuk caribou herd barren-ground caribou caribou calving coastal plain petroleum development Animal culture SF1-1100 |
spellingShingle |
Alaska Teshekpuk caribou herd barren-ground caribou caribou calving coastal plain petroleum development Animal culture SF1-1100 Geoff M. Carroll Lincoln S. Parrett J. Craig George Dave A. Yokel Calving distribution of the Teshekpuk caribou herd, 1994-2003 |
topic_facet |
Alaska Teshekpuk caribou herd barren-ground caribou caribou calving coastal plain petroleum development Animal culture SF1-1100 |
description |
Parturient female caribou from the Teshekpuk caribou (Rangifer tarandus granti) herd (TCH) have been observed across the western North Slope, but most cows that were seen with calves during the calving period were in the area surrounding Teshekpuk Lake. During surveys conducted between 1994 and 2003, 155 (91%) of 171 collared cows seen with calves were within an area given protected status in the 1998 Bureau of Land Management Final Integrated Activity Plan/Environmental Impact Statement (IAP/EIS). The percentage of adult collared cows seen with a calf between 1994 and 2003 has ranged from 44% to 86%, with a mean of 66%. The years with the lowest percentage of collared cows seen with calves were 1997 (50%) and 2001 (44%). In 1997 most of the herd migrated much farther south than usual, and in 2001 unusually deep, persistent snow restricted spring migration, resulting in fewer cows returning to the traditional calving area during the calving period. When snowmelt dates were earlier, calving locations were farther north. Average standardized travel rates for parturient cows were significantly greater before they had calves (7.25 km/day) than after 3.89 (km/day). Geographically, protections granted by the 1998 BLM IAP/EIS appear to adequately cover the concentrated calving grounds, allowing for variance in the annual distribution of calving cows. |
format |
Article in Journal/Newspaper |
author |
Geoff M. Carroll Lincoln S. Parrett J. Craig George Dave A. Yokel |
author_facet |
Geoff M. Carroll Lincoln S. Parrett J. Craig George Dave A. Yokel |
author_sort |
Geoff M. Carroll |
title |
Calving distribution of the Teshekpuk caribou herd, 1994-2003 |
title_short |
Calving distribution of the Teshekpuk caribou herd, 1994-2003 |
title_full |
Calving distribution of the Teshekpuk caribou herd, 1994-2003 |
title_fullStr |
Calving distribution of the Teshekpuk caribou herd, 1994-2003 |
title_full_unstemmed |
Calving distribution of the Teshekpuk caribou herd, 1994-2003 |
title_sort |
calving distribution of the teshekpuk caribou herd, 1994-2003 |
publisher |
Septentrio Academic Publishing |
publishDate |
2005 |
url |
https://doi.org/10.7557/2.25.4.1767 https://doaj.org/article/e1b4ea22ddab4e009ea73c7856885e4f |
genre |
caribou north slope Rangifer Rangifer tarandus Alaska |
genre_facet |
caribou north slope Rangifer Rangifer tarandus Alaska |
op_source |
Rangifer, Vol 25, Iss 4 (2005) |
op_relation |
https://septentrio.uit.no/index.php/rangifer/article/view/1767 https://doaj.org/toc/1890-6729 doi:10.7557/2.25.4.1767 1890-6729 https://doaj.org/article/e1b4ea22ddab4e009ea73c7856885e4f |
op_doi |
https://doi.org/10.7557/2.25.4.1767 |
container_title |
Rangifer |
container_volume |
25 |
container_issue |
4 |
container_start_page |
27 |
_version_ |
1766388575440470016 |