Monitoring of arctic foxes (Alopex lagopus) in the Kongsfjord area

Updated 2003-01-25

To evaluate temporal variation in arctic fox numbers and their food resourses in the Kongsfjorden area. The number of foxes captured per 100 trap-days are used as an index of fox density termed "Fox Capture Index". The observations of denning activity i.e. observation of number of arctic fox litters and litter size at den are termed "Fox Den Index" as a second index of fox abundance. A third index is termed "Fox Observation Index". This index is based on both observations of adult foxes seen away from breeding dens pr 100 h field work and reports on request from scientists and local people on observations of adult foxes during summer. In addition, reports on observation of fox tracks in the study area were collected in 1990-2001 as a fourth index, which were called "Fox Track Index". The field census are conducted for 10 days starting at the end of June. All dead foxes in the area should be collected.

Comments and additional information:

The study area comprises the northern and eastern shores of Kongsfjorden, and the Brøggerhalvøya peninsula in the south. There are at least six known breeding arctic fox dens in the study area, which covers an area of 221 km².

Time frame

Project time span
1993 - 2010
Data collection
not specified
Data processing
not specified
Data reporting
not specified

Contact information

Contact person
Eva Fuglei
Norwegian Polar Institute The Polar Environmental Center 9296 Tromsø Norway
+47 77 75 05 28
+47 77 75 05 01

Parameters and Media

Parameter groups measured/observed/modelled
Media sampled/studied/modelled
Additional information or further specification of types of data / information collected, species / tissues / organs sampled, etc.

Dead foxes will be transported to Tromsø for autopsies.


Regions studied
Sverdrup Research Station, Ny-Ålesund
Sverdrup Research Station, Ny-Ålesund
Sverdrup Research Station, Ny-Ålesund

Data availability

References to key publications (or planned publications) and data reports
Fuglei, E., Prestrud, P and Vongraven, D. 1998. A status report of arctic foxes Alopex lagopus at Svalbard. Norsk Polarinstitutts rapportserie 44, pp 24. Fuglei, E., Øritsland, N. A. & Prestrud, P. 2003. Local variation in arctic fox abundance on Svalbard, Norway. In press in Polar Biology.
Samples/specimens archived in specimen banks?
Specimen banking information

Tissue and organ samples will be stored frozen at the Norwegian Polar Institute.

Methods & Procedures

Not specified

Additional Information

Is this a bi- AND multi-lateral project (i.e. a project involving cooperation between different countries)?
Is this project reporting to other organizations/programmes?


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