Quantitative differentiation of types of feeding craters of Rangifer tarandus fennicus
During winter 1983-1984 in the Kainuu region of eastern Finland, based on 1363 api profiles, the Värriö Snow Index (VSI) modelled 3 different types of feeding craters dug by Rangifer tarandus fennicus. When mean log VSI of control sites = < ca. 1.4, the animals used suov'dnji (Lappish) or in...
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Septentrio Academic Publishing
1992
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Online Access: | https://doi.org/10.7557/2.12.1.1022 https://doaj.org/article/f61ce0a882874c96bbc60717a8cb7c13 |
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ftdoajarticles:oai:doaj.org/article:f61ce0a882874c96bbc60717a8cb7c13 2023-05-15T18:03:56+02:00 Quantitative differentiation of types of feeding craters of Rangifer tarandus fennicus William O. Pruitt, Jr. 1992-10-01T00:00:00Z https://doi.org/10.7557/2.12.1.1022 https://doaj.org/article/f61ce0a882874c96bbc60717a8cb7c13 EN eng Septentrio Academic Publishing https://septentrio.uit.no/index.php/rangifer/article/view/1022 https://doaj.org/toc/1890-6729 doi:10.7557/2.12.1.1022 1890-6729 https://doaj.org/article/f61ce0a882874c96bbc60717a8cb7c13 Rangifer, Vol 12, Iss 1 (1992) reindeer Rangifer feeding adaptations behaviour winter ecology snow Animal culture SF1-1100 article 1992 ftdoajarticles https://doi.org/10.7557/2.12.1.1022 2022-12-31T05:37:04Z During winter 1983-1984 in the Kainuu region of eastern Finland, based on 1363 api profiles, the Värriö Snow Index (VSI) modelled 3 different types of feeding craters dug by Rangifer tarandus fennicus. When mean log VSI of control sites = < ca. 1.4, the animals used suov'dnji (Lappish) or individual, single-use excavations; when mean log VSI of control sites = > 1.4 < ca. 2.1, the animals used fies'ki (Lappish) or cooperative excavations of the perimeter of a site; when mean log VSI of control sites = > ca. 2.6, the animals switched to using ciegar (Lappish) or linear extensions of a suov'dnji, excavated by a sequence of individuals^iegar-type feeding resulted in reduction of mean log VSI of feeding sites even though VSI of control sites increased. Ciegar-type feeding is interpreted as a successful behavioural adaptation to the Sub-Marginal Period. Article in Journal/Newspaper Rangifer Rangifer tarandus Directory of Open Access Journals: DOAJ Articles Kainuu ENVELOPE(28.000,28.000,66.000,66.000) Rangifer 12 1 29 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
reindeer Rangifer feeding adaptations behaviour winter ecology snow Animal culture SF1-1100 |
spellingShingle |
reindeer Rangifer feeding adaptations behaviour winter ecology snow Animal culture SF1-1100 William O. Pruitt, Jr. Quantitative differentiation of types of feeding craters of Rangifer tarandus fennicus |
topic_facet |
reindeer Rangifer feeding adaptations behaviour winter ecology snow Animal culture SF1-1100 |
description |
During winter 1983-1984 in the Kainuu region of eastern Finland, based on 1363 api profiles, the Värriö Snow Index (VSI) modelled 3 different types of feeding craters dug by Rangifer tarandus fennicus. When mean log VSI of control sites = < ca. 1.4, the animals used suov'dnji (Lappish) or individual, single-use excavations; when mean log VSI of control sites = > 1.4 < ca. 2.1, the animals used fies'ki (Lappish) or cooperative excavations of the perimeter of a site; when mean log VSI of control sites = > ca. 2.6, the animals switched to using ciegar (Lappish) or linear extensions of a suov'dnji, excavated by a sequence of individuals^iegar-type feeding resulted in reduction of mean log VSI of feeding sites even though VSI of control sites increased. Ciegar-type feeding is interpreted as a successful behavioural adaptation to the Sub-Marginal Period. |
format |
Article in Journal/Newspaper |
author |
William O. Pruitt, Jr. |
author_facet |
William O. Pruitt, Jr. |
author_sort |
William O. Pruitt, Jr. |
title |
Quantitative differentiation of types of feeding craters of Rangifer tarandus fennicus |
title_short |
Quantitative differentiation of types of feeding craters of Rangifer tarandus fennicus |
title_full |
Quantitative differentiation of types of feeding craters of Rangifer tarandus fennicus |
title_fullStr |
Quantitative differentiation of types of feeding craters of Rangifer tarandus fennicus |
title_full_unstemmed |
Quantitative differentiation of types of feeding craters of Rangifer tarandus fennicus |
title_sort |
quantitative differentiation of types of feeding craters of rangifer tarandus fennicus |
publisher |
Septentrio Academic Publishing |
publishDate |
1992 |
url |
https://doi.org/10.7557/2.12.1.1022 https://doaj.org/article/f61ce0a882874c96bbc60717a8cb7c13 |
long_lat |
ENVELOPE(28.000,28.000,66.000,66.000) |
geographic |
Kainuu |
geographic_facet |
Kainuu |
genre |
Rangifer Rangifer tarandus |
genre_facet |
Rangifer Rangifer tarandus |
op_source |
Rangifer, Vol 12, Iss 1 (1992) |
op_relation |
https://septentrio.uit.no/index.php/rangifer/article/view/1022 https://doaj.org/toc/1890-6729 doi:10.7557/2.12.1.1022 1890-6729 https://doaj.org/article/f61ce0a882874c96bbc60717a8cb7c13 |
op_doi |
https://doi.org/10.7557/2.12.1.1022 |
container_title |
Rangifer |
container_volume |
12 |
container_issue |
1 |
container_start_page |
29 |
_version_ |
1766175157897920512 |