Decline and Recovery of a High Arctic Wolf-Prey System

A long-existing system of wolves (Canis lupus), muskoxen (Ovibos moschatus), and arctic hares (Lepus arcticus) in a 2600 km2 area of Canada’s High Arctic (80° N latitude) began collapsing in 1997 because of unusual adverse summer weather but recovered to a level at which all three species were repro...

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Bibliographic Details
Main Author: Mech, L. David
Format: Text
Language:unknown
Published: DigitalCommons@University of Nebraska - Lincoln 2005
Subjects:
arctic hares
Canis lupus
climate change
Ellesmere Island
High Arctic
Lepus arcticus
muskoxen
Ovibos moschatus
wolves. lièvres arctiques
changement climatique
île d’Ellesmere
Extrême-Arctique
boeuf musqué
loups
Animal Sciences
Behavior and Ethology
Biodiversity
Ecology and Evolutionary Biology
Environmental Policy
Life Sciences
Recreation
Parks and Tourism Administration
Terrestrial and Aquatic Ecology
Arctic
Arctique*
Climate change
muskox
ovibos moschatus
Online Access:https://digitalcommons.unl.edu/usgsnpwrc/387
https://digitalcommons.unl.edu/context/usgsnpwrc/article/1385/viewcontent/Mech_ARCTIC_2005_Decline_and_Recovery.pdf
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Summary:A long-existing system of wolves (Canis lupus), muskoxen (Ovibos moschatus), and arctic hares (Lepus arcticus) in a 2600 km2 area of Canada’s High Arctic (80° N latitude) began collapsing in 1997 because of unusual adverse summer weather but recovered to a level at which all three species were reproducing by 2004. Recovery of wolf presence and reproduction appeared to be more dependent on muskox increase than on hare increase. Un vieux système biologique composé de loups (Canis lupus), de boeufs musqués (Ovibos moschatus) et de lièvres arctiques (Lepus arcticus), occupant 2600 km2 de l’Extrême-Arctique canadien (80° de latit. N.), a commencé à s’effondrer en 1997 en raison d’intempéries estivales anormales, mais il s’est rétabli à un niveau qui permettait aux trois espèces de se reproduire en 2004. Le rétablissement de la présence et de la reproduction du loup semble plus dépendre de l’augmentation du boeuf musqué que de celle du lièvre.

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