EurekaMag.com logo
+ Site Statistics
References:
53,869,633
Abstracts:
29,686,251
+ Search Articles
+ Subscribe to Site Feeds
EurekaMag Most Shared ContentMost Shared
EurekaMag PDF Full Text ContentPDF Full Text
+ PDF Full Text
Request PDF Full TextRequest PDF Full Text
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter
Follow on LinkedInFollow on LinkedIn

+ Translate

Predation of belugas and narwhals by polar bears in nearshore areas of the canadian high arctic



Predation of belugas and narwhals by polar bears in nearshore areas of the canadian high arctic



Arctic 43(2): 99-102



On 18 August 1988 we found four narwhals and two dead belugas stranded on a low beach at Creswell Bay, Somerset Island. All of the narwhals and two of the belugas had been attacked and partially eaten by polar bears. At Cunningham Inlet, where belugas concentrate in large numbers, we have noted ten strandings over the period 1980-88, without bear predation on these occasions. One bear, hunting from an ice floe in deep water at Cunningham Inlet, killed two sub-adult belugas in July 1985. Belugas seem to exhibit curiosity towards swimming polar bears that might serve to drive bears out of the area and reduce the risk of predation. The potential large summer food resource for bears represented by odontocete whales in the High Arctic Archipelago seems to be underutilized. The timing and location of beluga concentrations are known and dates or probable strandings are somewhat predictable, which allow us to assess the extent of bear predation on whales in the future.

(PDF emailed within 0-6 h: $19.90)

Accession: 007675651

Download citation: RISBibTeXText

DOI: 10.2307/40511132



Related references

Surveys of belugas and narwhals in Canadian high Arctic in 1996. NAMMCO Scientific Publications, 4: 169-190, 2002

Distribution and abundance of belugas delphinapterus leucas and narwhals monodon monoceros in the canadian high arctic. Canadian Journal of Fisheries & Aquatic Sciences 42(4): 676-684, 1985

Reactions of belugas, Delphinapterus leucas and narwhals, Monodon monoceros, to ice-breaking ships in the Canadian high Arctic. Canadian Bulletin of Fisheries and Aquatic Sciences, 224: 97-117, 1990

Summer and autumn movements and habitat use by belugas in the Canadian High Arctic and adjacent areas. Arctic ember; 54(3): 207-222, 2001

Summer snow dens used by polar bears in the canadian high arctic. Arctic 32(2): 165-169, 1979

Differences in mercury bioaccumulation between polar bears (Ursus maritimus) from the Canadian high- and sub-Arctic. Environmental Science & Technology 45(14): 5922-5928, 2011

Predation on narwhals monodon monoceros by killer whales orcinus orca in the eastern canadian arctic. Canadian Field-Naturalist 102(4): 689-696, 1988

The nature of Arctic whales: belugas, bowheads and narwhals. Unknown, 1995

Belugas and narwhals Application of new technology to whale science in the Arctic. Arctic 54(3): iii-vi, September, 2001

Composition of chlorinated hydrocarbon contaminants among major adipose tissue depots of polar bears (Ursus maritimus) from the Canadian high Arctic. Science of the Total Environment 370(2-3): 580-587, 2006

Denning ecology of polar bears in the Canadian Arctic archipelago. Journal of Mammalogy 75(2): 420-430, 1994

Immobilization of polar bears (Ursus maritimus) with Telazol in the Canadian Arctic. Journal of Wildlife Diseases 25(2): 159-168, 1989

Population dynamics of central canadian arctic island polar bears. Journal of Wildlife Management 48(3): 722-728, 1984

Distribution and Movements of Belugas, Delphinapterus leucas, in the Canadian High Arctic. Canadian Journal Of Fisheries & Aquatic Sciences. 51(7): 1653-1663, 1994