Activity budgets and group size of caribou during spring migration
Activity budgets and group size of caribou were described throughout the early spring migration in 1982 and 1983. Pregnant cows were the predominant cohort under observation. Activity budgets and group size of migrating caribou are compared with data from nonmigrating caribou and reindeer to test th...
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Language: | English |
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Canadian Science Publishing
1987
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Online Access: | http://dx.doi.org/10.1139/z87-023 http://www.nrcresearchpress.com/doi/pdf/10.1139/z87-023 |
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crcansciencepubl:10.1139/z87-023 2023-12-17T10:28:44+01:00 Activity budgets and group size of caribou during spring migration Duquette, Laurel S. Klein, David R. 1987 http://dx.doi.org/10.1139/z87-023 http://www.nrcresearchpress.com/doi/pdf/10.1139/z87-023 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Zoology volume 65, issue 1, page 164-168 ISSN 0008-4301 1480-3283 Animal Science and Zoology Ecology, Evolution, Behavior and Systematics journal-article 1987 crcansciencepubl https://doi.org/10.1139/z87-023 2023-11-19T13:39:30Z Activity budgets and group size of caribou were described throughout the early spring migration in 1982 and 1983. Pregnant cows were the predominant cohort under observation. Activity budgets and group size of migrating caribou are compared with data from nonmigrating caribou and reindeer to test the hypothesis that the spring migration of pregnant cow caribou will occur with minimal disruption of the normal grazing pattern to ensure maintenance of body condition. The average proportion of time migrating caribou spent feeding, lying, standing, and walking was 61, 28, 1, and 9%, respectively, in 1982 and 64, 24, 1, and 11%, respectively, in 1983. Grazing was consistently the dominant activity throughout migration while lying time was negatively correlated with walking time. Migrating caribou spent more time grazing and walking and less time standing and lying than nonmigrating caribou and reindeer during this season. Discrete caribou groups were difficult to identify because mixing of caribou between groups was common. Groups were identifiable at four study sites and group size ranged from 8 to 393 caribou. At three study sites, caribou were associated with aggregations of 500+ animals. Large social aggregations may be important for stimulating migratory movements through the process of social facilitation. Article in Journal/Newspaper caribou Canadian Science Publishing (via Crossref) Canadian Journal of Zoology 65 1 164 168 |
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 Duquette, Laurel S. Klein, David R. Activity budgets and group size of caribou during spring migration |
topic_facet |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics |
description |
Activity budgets and group size of caribou were described throughout the early spring migration in 1982 and 1983. Pregnant cows were the predominant cohort under observation. Activity budgets and group size of migrating caribou are compared with data from nonmigrating caribou and reindeer to test the hypothesis that the spring migration of pregnant cow caribou will occur with minimal disruption of the normal grazing pattern to ensure maintenance of body condition. The average proportion of time migrating caribou spent feeding, lying, standing, and walking was 61, 28, 1, and 9%, respectively, in 1982 and 64, 24, 1, and 11%, respectively, in 1983. Grazing was consistently the dominant activity throughout migration while lying time was negatively correlated with walking time. Migrating caribou spent more time grazing and walking and less time standing and lying than nonmigrating caribou and reindeer during this season. Discrete caribou groups were difficult to identify because mixing of caribou between groups was common. Groups were identifiable at four study sites and group size ranged from 8 to 393 caribou. At three study sites, caribou were associated with aggregations of 500+ animals. Large social aggregations may be important for stimulating migratory movements through the process of social facilitation. |
format |
Article in Journal/Newspaper |
author |
Duquette, Laurel S. Klein, David R. |
author_facet |
Duquette, Laurel S. Klein, David R. |
author_sort |
Duquette, Laurel S. |
title |
Activity budgets and group size of caribou during spring migration |
title_short |
Activity budgets and group size of caribou during spring migration |
title_full |
Activity budgets and group size of caribou during spring migration |
title_fullStr |
Activity budgets and group size of caribou during spring migration |
title_full_unstemmed |
Activity budgets and group size of caribou during spring migration |
title_sort |
activity budgets and group size of caribou during spring migration |
publisher |
Canadian Science Publishing |
publishDate |
1987 |
url |
http://dx.doi.org/10.1139/z87-023 http://www.nrcresearchpress.com/doi/pdf/10.1139/z87-023 |
genre |
caribou |
genre_facet |
caribou |
op_source |
Canadian Journal of Zoology volume 65, issue 1, page 164-168 ISSN 0008-4301 1480-3283 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/z87-023 |
container_title |
Canadian Journal of Zoology |
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65 |
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1 |
container_start_page |
164 |
op_container_end_page |
168 |
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1785580924543434752 |