Population demography of Peary caribou and muskox on Banks Island, N.W.T., 1982-1992
The Peary caribou population (excluding calves) on Banks Island declined from 6 970 (± 1133) in 1982 to 897 (± 151) in 1991. The 1992 estimate was 1 005 (± 133). Percent calves in the population varied among years (range 3.2¬31.1%). Mean group sizes dropped from 5.0 in 1985 to a low of 2.0 in 1989 a...
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Septentrio Academic Publishing
1996
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ftdoajarticles:oai:doaj.org/article:928318ae52f44f649c932cb1bab6a5ff 2023-05-15T15:37:37+02:00 Population demography of Peary caribou and muskox on Banks Island, N.W.T., 1982-1992 J.A. Nagy N.C. Larter V.P. Fraser 1996-01-01T00:00:00Z https://doi.org/10.7557/2.16.4.1245 https://doaj.org/article/928318ae52f44f649c932cb1bab6a5ff EN eng Septentrio Academic Publishing https://septentrio.uit.no/index.php/rangifer/article/view/1245 https://doaj.org/toc/1890-6729 doi:10.7557/2.16.4.1245 1890-6729 https://doaj.org/article/928318ae52f44f649c932cb1bab6a5ff Rangifer, Vol 16, Iss 4 (1996) Peary caribou muskox Banks Island population demography Animal culture SF1-1100 article 1996 ftdoajarticles https://doi.org/10.7557/2.16.4.1245 2022-12-31T09:37:36Z The Peary caribou population (excluding calves) on Banks Island declined from 6 970 (± 1133) in 1982 to 897 (± 151) in 1991. The 1992 estimate was 1 005 (± 133). Percent calves in the population varied among years (range 3.2¬31.1%). Mean group sizes dropped from 5.0 in 1985 to a low of 2.0 in 1989 and 1991. Median group sizes were significantly larger between 1982 and 1987 than between 1989 and 1992 (P<0.001). Large post-calving aggregations prevalent on the NW portion of Banks Island in the early 1980's were absent by the 1990s. The muskox population (excluding calves), increased from 29 168 (± 2104) in 1985 to 52 959 (± 2240) in 1992. Percent calves in the population varied among years, (range 11.8-17.1%). These values may be underestimates, because calves are small and muskox groups sometimes form defensive circles in response to aircraft. Muskoxen were distributed throughout the island during all surveys; however, the greatest increase in density occurred in the southern parts of the island. Article in Journal/Newspaper Banks Island caribou muskox Rangifer Directory of Open Access Journals: DOAJ Articles Peary ENVELOPE(-63.867,-63.867,-65.250,-65.250) Rangifer 16 4 213 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Peary caribou muskox Banks Island population demography Animal culture SF1-1100 |
spellingShingle |
Peary caribou muskox Banks Island population demography Animal culture SF1-1100 J.A. Nagy N.C. Larter V.P. Fraser Population demography of Peary caribou and muskox on Banks Island, N.W.T., 1982-1992 |
topic_facet |
Peary caribou muskox Banks Island population demography Animal culture SF1-1100 |
description |
The Peary caribou population (excluding calves) on Banks Island declined from 6 970 (± 1133) in 1982 to 897 (± 151) in 1991. The 1992 estimate was 1 005 (± 133). Percent calves in the population varied among years (range 3.2¬31.1%). Mean group sizes dropped from 5.0 in 1985 to a low of 2.0 in 1989 and 1991. Median group sizes were significantly larger between 1982 and 1987 than between 1989 and 1992 (P<0.001). Large post-calving aggregations prevalent on the NW portion of Banks Island in the early 1980's were absent by the 1990s. The muskox population (excluding calves), increased from 29 168 (± 2104) in 1985 to 52 959 (± 2240) in 1992. Percent calves in the population varied among years, (range 11.8-17.1%). These values may be underestimates, because calves are small and muskox groups sometimes form defensive circles in response to aircraft. Muskoxen were distributed throughout the island during all surveys; however, the greatest increase in density occurred in the southern parts of the island. |
format |
Article in Journal/Newspaper |
author |
J.A. Nagy N.C. Larter V.P. Fraser |
author_facet |
J.A. Nagy N.C. Larter V.P. Fraser |
author_sort |
J.A. Nagy |
title |
Population demography of Peary caribou and muskox on Banks Island, N.W.T., 1982-1992 |
title_short |
Population demography of Peary caribou and muskox on Banks Island, N.W.T., 1982-1992 |
title_full |
Population demography of Peary caribou and muskox on Banks Island, N.W.T., 1982-1992 |
title_fullStr |
Population demography of Peary caribou and muskox on Banks Island, N.W.T., 1982-1992 |
title_full_unstemmed |
Population demography of Peary caribou and muskox on Banks Island, N.W.T., 1982-1992 |
title_sort |
population demography of peary caribou and muskox on banks island, n.w.t., 1982-1992 |
publisher |
Septentrio Academic Publishing |
publishDate |
1996 |
url |
https://doi.org/10.7557/2.16.4.1245 https://doaj.org/article/928318ae52f44f649c932cb1bab6a5ff |
long_lat |
ENVELOPE(-63.867,-63.867,-65.250,-65.250) |
geographic |
Peary |
geographic_facet |
Peary |
genre |
Banks Island caribou muskox Rangifer |
genre_facet |
Banks Island caribou muskox Rangifer |
op_source |
Rangifer, Vol 16, Iss 4 (1996) |
op_relation |
https://septentrio.uit.no/index.php/rangifer/article/view/1245 https://doaj.org/toc/1890-6729 doi:10.7557/2.16.4.1245 1890-6729 https://doaj.org/article/928318ae52f44f649c932cb1bab6a5ff |
op_doi |
https://doi.org/10.7557/2.16.4.1245 |
container_title |
Rangifer |
container_volume |
16 |
container_issue |
4 |
container_start_page |
213 |
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1766368252567486464 |