Predation of Svalbard reindeer by polar bears

  title={Predation of Svalbard reindeer by polar bears},
  author={Andrew E. Derocher and {\O}ystein Wiig and Georg Bangjord},
  journal={Polar Biology},
Abstract Polar bears (Ursus maritimus) are believed to be obligate predators on marine mammals, and particularly, on two species of seals. This paper reports on observations of polar bears preying (n=7) and scavenging (n=6) on Svalbard reindeer (Rangifer tarandus platyrhyncus). Similar to their closest evolutionary ancestor, the brown bear (U. arctos), polar bears are opportunistic and will prey on ungulates. Reindeer are likely of minor importance to the foraging ecology of polar bears in… 

Observation of polar bear (Ursus maritimus) feeding on Svalbard reindeer (Rangifer tarandus platyrhyncus) – exceptional behaviour or upcoming trend?

  • J. Kavan
  • Environmental Science
    Czech Polar Reports
  • 2018
A polar bear (Ursus maritimus) was observed feeding on Svalbard reindeer (Rangifer tarandus platyrhyncus) on September 3rd 2018 near Skansbukta, central Svalbard. A well-developed male was observed

Observations of Polar Bear Predatory Behaviour toward Caribou

A polar bear ( Ursus maritimu s) was observed unsuccessfully stalking and chasing caribou ( Rangifer tarandus ) in western Hudson Bay. Before chasing the caribou, the polar bear appeared to make use

The diet of polar bears (Ursus maritimus) from Svalbard, Norway, inferred from scat analysis

The novel combination of genetic analyses of material in the fecal samples along with detailed exploration of the physical–structural properties of prey hairs and plant parts provided a much fuller picture of the diet of polar bears than would have been possible from observational studies of polar bear predation behavior alone.

Unusual hunting and feeding behaviour of polar bears on Spitsbergen

ABSTRACT Prolonged chasing of an adult reindeer (Rangifer tarandus) by a polar bear (Ursus maritimus) was observed both on land and in the sea, in Magdalenefjorden, northwest Spitsbergen. Polar bears

Polar Bear Predatory Behaviour toward Molting Barnacle Geese and Nesting Glaucous Gulls on Spitsbergen

These observations are the first documented instances of a polar bear hunting for barnacle goose and glaucous gull and provide additional evidence of the use of terrestrial prey by polar bears during the season of minimal ice extent.

Yes, they can: polar bears Ursus maritimus successfully hunt Svalbard reindeer Rangifer tarandus platyrhynchus

The polar bear Ursus maritimus is one of the species most endangered by the rapidly declining sea–ice cover in the Arctic, which they use as a platform to hunt fatty, high-energy seals. In recent

Response Behaviors of Svalbard Reindeer TOwards Humans and Humans Disguised as Polar Bears on Edgeøya

Abstract Due to observed interactions between Svalbard reindeer (Rangifer tarandus platyrhynchus) and polar bears (Ursus maritimus) during field work on Edgeøya, Svalbard, we measured response

Diet composition of polar bears in Svalbard and the western Barents Sea

It is believed that different patterns of space use by different bears may result in geographic variation of diet within the same population, and bearded seals are an important dietary item for polar bears in the western Barents Sea.

Barents Sea polar bears (Ursus maritimus): population biology and anthropogenic threats

This paper examines how anthropogenic threats, such as disturbance, pollution and climate change, are linked to polar bear (Ursus maritimus) population biology in the Svalbard and Barents Sea area,

Polar bears observed climbing steep slopes to graze on scurvy grass in Svalbard

ABSTRACT It is well known that polar bears feed on vegetation. Here, I report novel observations of polar bears grazing on polar scurvy grass (Cochlearia groenlandica) at the foot of a large seabird