Study ID 52

A transect survey of small land carnivore and red fox populations on a subarctic fell in Finnish forest Lapland over 13 winters

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Realm: Terrestrial
Climate: Polar
Biome: Boreal forests/Taiga
Central latitude: 67.750000
Central longitude: 29.500000
Duration: 13 years, from 1968 to 1980

144 records

3 distinct species

Across the time series Vulpes vulpes is the most frequently occurring species

Citation(s):

"A transect survey of small land carnivore and red fox populations on a subarctic fell in Finnish forest Lapland over 13 winters". NERC Centre for Population Biology, Imperial College, The Global Population Dynamics Database v2.0. Available at: http://www3.imperial.ac.uk/cpb/databases/gpdd, accessed 2012.Pulliainen, E. (1981) A transect survey of small land carnivore and red fox populations on a subarctic fell in Finnish Forest Lapland over 13 winters. Annales Zoologici Fennici, 18, 270–278.

Methods

The tracks of red fox. pine marten. stoat and pygmy weasel crossing an observation line 5970 m long running westwards from the summit of Varriotunturi were counted in the winters of 1968/69 - 1980/81 by skiing along this line once a week during the snowy season of the year. Only tracks that were at most 2 days old when recorded in November - April are taken into account in the present calculations. If the same individual had crossed the line more than once within a few minutes at points lying between two recording sticks 20 m apart. this was regarded as only one crossing. In order to render the results for the different months comparable. all monthly means (per 100 m of the observation line) were calculated per four observation times on the basis of those observations in which fresh tracks were visible. Unit of abundance = MeanCount, Unit of biomass = NA