Polar bear

All tagged polar bears carry a small plastic tag in the ear.
All tagged polar bears carry a small plastic tag in the ear. Photo: Erik W. Born.
Polar bears get a tatoo in the mouth.
Polar bears get a tatoo in the mouth. Photo: Ø Wiig.
In recent years small transmitters have been used for male polar bears.
In recent years small transmitters have been used for male polar bears. Photo: Erik W. Born.
Adult female polar bears get a transmitter aroundthe neck.
Adult female polar bears get a transmitter aroundthe neck. Photo: Erik W. Born.

Tagged Polar bears

More than a thousand polar bears have been tagged in Canada since the 1970s. Since 1979 polar bears in West Greenland have been tagged, with conventional eartags with an individual code.

In 1973-75 and agin since 1993 more tha 100 polar bears have been tagged in East Greenland. Mange af disse isbjørne er senere blevet nedlagt i Vestgrønland. Bjørne fra Canada har en kode der begynder med "X", mens grønlandsk mærkede har en kode der begynder med "D".

Some female polar bears are tagged with satellite transmitters. They can send for two years. Male polar bears are tagged with small 30 g transmitters in the ear. They last a few months.

The pupose withi tagging is to track movements to get information on how changes in ice coverage impact the polar bears.

Updated 11.12.2012