Caribou Feeding Sites in Relation to Snow Characteristics in Northeastern

ABSTRACT. Caribou select areas of relatively shallow snow for winter feeding, and do so on at least two levels: broad area and microsite. They do not normally select sites with snow-packs having mean integrated Ram hardness values in &cess of 85. However, in areas of relatively shallow hard-pack...

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Main Authors: Arthur J. Laperfuerel, Peter C. Lent
Other Authors: The Pennsylvania State University CiteSeerX Archives
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Language:English
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Online Access:http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.557.4793
http://pubs.aina.ucalgary.ca/arctic/arctic30-2-101.pdf
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spelling ftciteseerx:oai:CiteSeerX.psu:10.1.1.557.4793 2023-05-15T14:19:47+02:00 Caribou Feeding Sites in Relation to Snow Characteristics in Northeastern Arthur J. Laperfuerel Peter C. Lent The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.557.4793 http://pubs.aina.ucalgary.ca/arctic/arctic30-2-101.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.557.4793 http://pubs.aina.ucalgary.ca/arctic/arctic30-2-101.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://pubs.aina.ucalgary.ca/arctic/arctic30-2-101.pdf text ftciteseerx 2016-01-08T11:50:49Z ABSTRACT. Caribou select areas of relatively shallow snow for winter feeding, and do so on at least two levels: broad area and microsite. They do not normally select sites with snow-packs having mean integrated Ram hardness values in &cess of 85. However, in areas of relatively shallow hard-packed snow, which is easily fractured into slab-like pieces, they can obtain access to vegetation with less expen-diture of energy than Ram hardness values alone would suggest. Alpine feeding areas in the Porcupine Lake basin of northeastern Alaska had this type of snow-pack in the winter of 1972-73. In typical taiga winter range, caribou use areas where the snow depth is less than 50 centimetres. R&UM&. Lieux 02 s'alimente le caribou, en relation avec les particularitks de la neige dans l'Alaska du nord-est. POW s'alimenter en hiver le caribou choisit des tapis de neige relativement peu profonds, et ceci sw au moins deux sortes de terrains: vastes &endues et espaces trh restreints. Normalement il ne choisit pas les emplacements dont les tapis de ne @ tassb dCpasse en duret6 des valeurs moyennes intdgrbs de Ram de 85. Cependant, sur des dtendues de neige dure t a d e relati-vement peu profonde et qui peut &re facilement bris & en plaques, le caribou a a d s B la v6g6tation en dhensant moins d'dnergie que ne le donneraient B supposer, B elles seules, les valeurs de duret6 de Ram. Les r6gions de pfiturages alpins du lae du HCrisson dans l'Alaska du nord-est ont eu ce type de tapis neigeux au.couP,.de l'hiver 1972-73. Pendant un hiver typique de taiga, le caribou utilise, pour s'ali-menter, des fitendues couvertes par une 6paisseur de neige infhiewe B 50 centi-mhtres. WTRODUCTION The characteristics of snow cover have often been acknowlèdged ah p critical factor influencing the survival and wellbeing of ungulates in the Arctic and Sub- Text Arctic Arctic taiga Alaska Unknown Arctic Bris ENVELOPE(-59.824,-59.824,-63.983,-63.983)
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description ABSTRACT. Caribou select areas of relatively shallow snow for winter feeding, and do so on at least two levels: broad area and microsite. They do not normally select sites with snow-packs having mean integrated Ram hardness values in &cess of 85. However, in areas of relatively shallow hard-packed snow, which is easily fractured into slab-like pieces, they can obtain access to vegetation with less expen-diture of energy than Ram hardness values alone would suggest. Alpine feeding areas in the Porcupine Lake basin of northeastern Alaska had this type of snow-pack in the winter of 1972-73. In typical taiga winter range, caribou use areas where the snow depth is less than 50 centimetres. R&UM&. Lieux 02 s'alimente le caribou, en relation avec les particularitks de la neige dans l'Alaska du nord-est. POW s'alimenter en hiver le caribou choisit des tapis de neige relativement peu profonds, et ceci sw au moins deux sortes de terrains: vastes &endues et espaces trh restreints. Normalement il ne choisit pas les emplacements dont les tapis de ne @ tassb dCpasse en duret6 des valeurs moyennes intdgrbs de Ram de 85. Cependant, sur des dtendues de neige dure t a d e relati-vement peu profonde et qui peut &re facilement bris & en plaques, le caribou a a d s B la v6g6tation en dhensant moins d'dnergie que ne le donneraient B supposer, B elles seules, les valeurs de duret6 de Ram. Les r6gions de pfiturages alpins du lae du HCrisson dans l'Alaska du nord-est ont eu ce type de tapis neigeux au.couP,.de l'hiver 1972-73. Pendant un hiver typique de taiga, le caribou utilise, pour s'ali-menter, des fitendues couvertes par une 6paisseur de neige infhiewe B 50 centi-mhtres. WTRODUCTION The characteristics of snow cover have often been acknowlèdged ah p critical factor influencing the survival and wellbeing of ungulates in the Arctic and Sub-
author2 The Pennsylvania State University CiteSeerX Archives
format Text
author Arthur J. Laperfuerel
Peter C. Lent
spellingShingle Arthur J. Laperfuerel
Peter C. Lent
Caribou Feeding Sites in Relation to Snow Characteristics in Northeastern
author_facet Arthur J. Laperfuerel
Peter C. Lent
author_sort Arthur J. Laperfuerel
title Caribou Feeding Sites in Relation to Snow Characteristics in Northeastern
title_short Caribou Feeding Sites in Relation to Snow Characteristics in Northeastern
title_full Caribou Feeding Sites in Relation to Snow Characteristics in Northeastern
title_fullStr Caribou Feeding Sites in Relation to Snow Characteristics in Northeastern
title_full_unstemmed Caribou Feeding Sites in Relation to Snow Characteristics in Northeastern
title_sort caribou feeding sites in relation to snow characteristics in northeastern
url http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.557.4793
http://pubs.aina.ucalgary.ca/arctic/arctic30-2-101.pdf
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