Productivity, Survival, and Movements of Female Moose in a Low-density Population, Northwest Territories, Canada

Moose (Alces alces andersoni) occur at low density (140-160 moose/1000 sq km) and are the most important game animal in much of the Mackenzie Valley, western Northwest Territories. Productivity and survival of 30 female moose (>=1.5 yr.) were studied from November 1985 through November 1988. Twen...

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Published in:ARCTIC
Main Authors: Stenhouse, G.B., Latour, P.B., Kutny, L., MacLean, N., Glover, G.
Format: Article in Journal/Newspaper
Language:English
Published: The Arctic Institute of North America 1995
Subjects:
Online Access:https://journalhosting.ucalgary.ca/index.php/arctic/article/view/64279
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spelling ftunivcalgaryojs:oai:journalhosting.ucalgary.ca:article/64279 2023-05-15T13:13:23+02:00 Productivity, Survival, and Movements of Female Moose in a Low-density Population, Northwest Territories, Canada Stenhouse, G.B. Latour, P.B. Kutny, L. MacLean, N. Glover, G. 1995-01-01 application/pdf https://journalhosting.ucalgary.ca/index.php/arctic/article/view/64279 eng eng The Arctic Institute of North America https://journalhosting.ucalgary.ca/index.php/arctic/article/view/64279/48214 https://journalhosting.ucalgary.ca/index.php/arctic/article/view/64279 ARCTIC; Vol. 48 No. 1 (1995): March: 1–108; 57-62 1923-1245 0004-0843 Animal behaviour Animal distribution Animal population Animal reproduction Grazing Moose Radio tracking of animals Wildlife management Animal tracks Mackenzie River region N.W.T info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion research-article 1995 ftunivcalgaryojs 2022-03-22T21:21:32Z Moose (Alces alces andersoni) occur at low density (140-160 moose/1000 sq km) and are the most important game animal in much of the Mackenzie Valley, western Northwest Territories. Productivity and survival of 30 female moose (>=1.5 yr.) were studied from November 1985 through November 1988. Twenty-nine of these moose were radio-tracked for a total of 1039 relocations. Pregnancy rates were 96% for adult and 40% for yearling females. Most females returned to the same restricted area to calve each year. Mean newborn calf:female ratio and twinning rates were 1.2:1 and 31%, respectively. Mean annual female survival rate was 85%. Annual calf survival was high and stable (44±0.02%). Individual total home range size varied from 40 sq km to 942 sq km. Mean home range size for 29 moose was 174±31 sq km and 202±59 sq km for the 14 moose radio-tracked the entire three years of study. Fall home ranges were twice the size of winter and summer home ranges; seasonal ranges overlapped widely, indicating that these moose were non-migratory.Key words: moose, low density, productivity, movements, Mackenzie Valley, Northwest Territories L'orignal (Alces alces andersoni) est présent à faible densité (140-160 orignaux/1000 km&sup2;) et constitue le gibier le plus important dans la plupart de la vallée du Mackenzie, à l'ouest des Territoires du Nord-Ouest. On a étudié la productivité et le taux de survie de 30 orignaux femelles (<= 1,5 ans) de novembre 1985 à novembre 1988. Vingt-neuf de ces orignaux ont été suivis par radio sur un total de 1039 déplacements. Les taux de gestation étaient de 96 p. cent pour les adultes et de 40 p. cent pour les femelles d'un an. La plupart des femelles retournaient chaque année mettre bas dans la même zone restreinte. Le rapport moyen mâle/femelle parmi les nouveau-nés était de 1,2 pour 1, et le pourcentage de jumeaux était de 30 p. cent. Le taux de survie annuel moyen des femelles était de 85 p. cent. Le taux de survie annuel des veaux était élevé et stable (44 ± 0,02 p. cent). Le territoire individuel total variait de 40 à 942 km&sup2;. Le territoire moyen mesurait 174 ± 31 km&sup2; pour l'ensemble des 29 orignaux, et 202 ± 59 km&sup2; pour les 14 orignaux suivis par radio du début à la fin de la période triennale d'étude. Les territoires étaient deux fois plus étendus en automne qu'en hiver ou en été; les territoires saisonniers se recoupaient largement, ce qui indique que ces orignaux n'étaient pas migratoires.Mots clés: orignal, faible densité, productivité, mouvements, vallée du Mackenzie, Territoires du Nord-Ouest Article in Journal/Newspaper Alces alces Arctic Mackenzie river Mackenzie Valley Northwest Territories Territoires du Nord-Ouest University of Calgary Journal Hosting Canada Mackenzie River Mackenzie Valley ENVELOPE(-126.070,-126.070,52.666,52.666) Northwest Territories ARCTIC 48 1
institution Open Polar
collection University of Calgary Journal Hosting
op_collection_id ftunivcalgaryojs
language English
topic Animal behaviour
Animal distribution
Animal population
Animal reproduction
Grazing
Moose
Radio tracking of animals
Wildlife management
Animal tracks
Mackenzie River region
N.W.T
spellingShingle Animal behaviour
Animal distribution
Animal population
Animal reproduction
Grazing
Moose
Radio tracking of animals
Wildlife management
Animal tracks
Mackenzie River region
N.W.T
Stenhouse, G.B.
Latour, P.B.
Kutny, L.
MacLean, N.
Glover, G.
Productivity, Survival, and Movements of Female Moose in a Low-density Population, Northwest Territories, Canada
topic_facet Animal behaviour
Animal distribution
Animal population
Animal reproduction
Grazing
Moose
Radio tracking of animals
Wildlife management
Animal tracks
Mackenzie River region
N.W.T
description Moose (Alces alces andersoni) occur at low density (140-160 moose/1000 sq km) and are the most important game animal in much of the Mackenzie Valley, western Northwest Territories. Productivity and survival of 30 female moose (>=1.5 yr.) were studied from November 1985 through November 1988. Twenty-nine of these moose were radio-tracked for a total of 1039 relocations. Pregnancy rates were 96% for adult and 40% for yearling females. Most females returned to the same restricted area to calve each year. Mean newborn calf:female ratio and twinning rates were 1.2:1 and 31%, respectively. Mean annual female survival rate was 85%. Annual calf survival was high and stable (44±0.02%). Individual total home range size varied from 40 sq km to 942 sq km. Mean home range size for 29 moose was 174±31 sq km and 202±59 sq km for the 14 moose radio-tracked the entire three years of study. Fall home ranges were twice the size of winter and summer home ranges; seasonal ranges overlapped widely, indicating that these moose were non-migratory.Key words: moose, low density, productivity, movements, Mackenzie Valley, Northwest Territories L'orignal (Alces alces andersoni) est présent à faible densité (140-160 orignaux/1000 km&sup2;) et constitue le gibier le plus important dans la plupart de la vallée du Mackenzie, à l'ouest des Territoires du Nord-Ouest. On a étudié la productivité et le taux de survie de 30 orignaux femelles (<= 1,5 ans) de novembre 1985 à novembre 1988. Vingt-neuf de ces orignaux ont été suivis par radio sur un total de 1039 déplacements. Les taux de gestation étaient de 96 p. cent pour les adultes et de 40 p. cent pour les femelles d'un an. La plupart des femelles retournaient chaque année mettre bas dans la même zone restreinte. Le rapport moyen mâle/femelle parmi les nouveau-nés était de 1,2 pour 1, et le pourcentage de jumeaux était de 30 p. cent. Le taux de survie annuel moyen des femelles était de 85 p. cent. Le taux de survie annuel des veaux était élevé et stable (44 ± 0,02 p. cent). Le territoire individuel total variait de 40 à 942 km&sup2;. Le territoire moyen mesurait 174 ± 31 km&sup2; pour l'ensemble des 29 orignaux, et 202 ± 59 km&sup2; pour les 14 orignaux suivis par radio du début à la fin de la période triennale d'étude. Les territoires étaient deux fois plus étendus en automne qu'en hiver ou en été; les territoires saisonniers se recoupaient largement, ce qui indique que ces orignaux n'étaient pas migratoires.Mots clés: orignal, faible densité, productivité, mouvements, vallée du Mackenzie, Territoires du Nord-Ouest
format Article in Journal/Newspaper
author Stenhouse, G.B.
Latour, P.B.
Kutny, L.
MacLean, N.
Glover, G.
author_facet Stenhouse, G.B.
Latour, P.B.
Kutny, L.
MacLean, N.
Glover, G.
author_sort Stenhouse, G.B.
title Productivity, Survival, and Movements of Female Moose in a Low-density Population, Northwest Territories, Canada
title_short Productivity, Survival, and Movements of Female Moose in a Low-density Population, Northwest Territories, Canada
title_full Productivity, Survival, and Movements of Female Moose in a Low-density Population, Northwest Territories, Canada
title_fullStr Productivity, Survival, and Movements of Female Moose in a Low-density Population, Northwest Territories, Canada
title_full_unstemmed Productivity, Survival, and Movements of Female Moose in a Low-density Population, Northwest Territories, Canada
title_sort productivity, survival, and movements of female moose in a low-density population, northwest territories, canada
publisher The Arctic Institute of North America
publishDate 1995
url https://journalhosting.ucalgary.ca/index.php/arctic/article/view/64279
long_lat ENVELOPE(-126.070,-126.070,52.666,52.666)
geographic Canada
Mackenzie River
Mackenzie Valley
Northwest Territories
geographic_facet Canada
Mackenzie River
Mackenzie Valley
Northwest Territories
genre Alces alces
Arctic
Mackenzie river
Mackenzie Valley
Northwest Territories
Territoires du Nord-Ouest
genre_facet Alces alces
Arctic
Mackenzie river
Mackenzie Valley
Northwest Territories
Territoires du Nord-Ouest
op_source ARCTIC; Vol. 48 No. 1 (1995): March: 1–108; 57-62
1923-1245
0004-0843
op_relation https://journalhosting.ucalgary.ca/index.php/arctic/article/view/64279/48214
https://journalhosting.ucalgary.ca/index.php/arctic/article/view/64279
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