If you are experiencing problems downloading PDF or HTML fulltext, our helpdesk recommend clearing your browser cache and trying again. If you need help in clearing your cache, please click here . Still need help? Email help@ingentaconnect.com

Abundance, social organization, and population trend of the arctic wolf in north and east Greenland during 1978-1998

$50.00 plus tax (Refund Policy)

Buy Article:

Abstract:

Abundance, social organization, and population trend of the arctic wolf (Canis lupus arctos Pocock, 1935) in north and east Greenland, 1978-1998, were determined from 353 sightings of 552 wolves by the Danish military, by expeditions, and from 8 consecutive years (1991-1998) of fieldwork. Available evidence suggested that this wolf population consisted of up to 55 wolves in favorable times. Six core packs were identified. Maximum wolf density was estimated at 1 wolf/3745 km2, which appears to be the lowest wolf density reported, representing 3.5% of maximum late winter wolf density in Denali Park, Alaska, and <1% of that in north-central Minnesota. Social organization was characterized by a preponderance of pairs and lone wolves. Mean early winter pack size was 2.6 wolves/pack; the lowest reported for wolves in North America. Packs >4 wolves were rare, constituting 3.8% of early winter sightings. The population increased, on average, 8% per year during the period 1978-1991 and appeared to reach a peak in 1991-1992. These depressed population characteristics are likely the consequence of the lowest ungulate prey availability in North America, e.g., 2.6% of that of wolves in northeastern Minnesota.

Trois cent cinquante-trois observations de 552 loups faites par les militaires danois ou réalisées lors de diverses expéditions et durant 8 années consécutives (1991-1998) de travail sur le terrain ont permis de déterminer l’abondance, l’organisation sociale et les tendances démographiques du loup arctique (Canis lupus arctos Pocock, 1935) dans le nord et l’est du Groenland de 1978 à 1998. Les données disponibles indiquent que cette population consiste en un maximum de 55 loups dans les périodes favorables. Six meutes centrales ont pu être identifiées. La densité maximale des loups est estimée à 1 loup/3745 km2, ce qui semble être la plus faible densité de loups jamais signalée, correspondant à 3,5 % de la densité maximale de loups en fin d’hiver au parc Denali, Alaska, et à <1 % de celle du centre nord du Minnesota. L’organisation sociale se caractérise par une prépondérance de paires et de loups seuls. La taille moyenne d’une meute au début de l’hiver est de 2,6 loups/meute, la valeur la plus basse signalée chez les loups en Amérique du Nord. Les meutes avec >4 loups sont rares et représentent 3,8 % des observations en début d’hiver. La population a crû en moyenne de 8 % par année durant la période de 1978 à 1991 et semble avoir atteint un sommet en 1991-1992. Ces caractéristiques de population réduite sont vraisemblablement la conséquence de la disponibilité d’ongulés proies la plus basse d’Amérique du Nord, représentant, par exemple, 2,6 % de celle que connaissent les loups du nord-est du Minnesota.

Document Type: Research Article

Publication date: October 1, 2009

More about this publication?
  • Published since 1929, this monthly journal reports on primary research contributed by respected international scientists in the broad field of zoology, including behaviour, biochemistry and physiology, developmental biology, ecology, genetics, morphology and ultrastructure, parasitology and pathology, and systematics and evolution. It also invites experts to submit review articles on topics of current interest.
  • Information for Authors
  • Submit a Paper
  • Subscribe to this Title
  • Terms & Conditions
  • Sample Issue
  • Reprints & Permissions
  • ingentaconnect is not responsible for the content or availability of external websites
Related content

Tools

Favourites

Share Content

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
X
Cookie Policy
ingentaconnect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more