HOME >> BIOLOGY >> NEWS
Grizzlies set to invade high Arctic?

The telltale paw prints with huge 10 centimetre-long nails spoke volumes. But now definitive corroborating DNA evidence seals the case of the most northerly sighting of a grizzly bear. The discovery fuels mounting evidence that Canada's High Arctic is no longer the sole preserve of the polar bear Nanuk is having to make room for its southern cousin.

The evidence of the barren ground grizzly bear (Ursus arctos) was discovered on Melville Island, an uninhabited part of the western Arctic archipelago 1,500 kilometres due north of Yellowknife, and 1,000 kilometres north of the Arctic Circle.

"We know grizzlies go out on the sea ice to hunt seals, but no one has ever seen one that far north," says Dr. John England a geology professor and the NSERC Northern Chair at the University of Alberta.

Dr. England got his first glimpse of the surprising Melville Island grizzly bear from the air during a helicopter ride to a geology research site in 2003. He photographed mid-distance shots of the large bear with characteristic grizzly features including a prominent shoulder hump, dark brown hair on and around the rear legs, and faded (grizzled) hair on the rest of the body.

Then in the summer of 2004, Dr. England's research group found physical proof that a grizzly bear was indeed calling Melville Island home. Near a cabin used by researchers for temporary stop-overs, they found grizzly bear paw prints in the mud. And from the cabin's outside walls and a guy wire attached to the roof they collected two intriguing brown hairs. These were sent for analysis to Wildlife Genetics International Inc. in Nelson, British Columbia, one of the world's premier bear DNA labs. The result: the genetic analysis pointed to a male barren ground grizzly bear, rather than a Viscount Melville polar bear, the variety known to inhabit the Melville Island area.

During the past 15 years there have been more and more sightings for barren-ground grizzlies on the sea
'"/>

Contact: Dr. Jonathan Doup
doupe@ualberta.ca
780-492-8839
Natural Sciences and Engineering Research Council
9-Mar-2005


Page: 1 2

Related biology news :

1. Grizzlies and salmon: Too much of a good thing?
2. Bursts of waves drive immune system soldiers toward invaders
3. Jefferson researchers discovery may change thinking on how viruses invade the brain
4. Freshwater snails are surprisingly fast-moving invaders
5. Study shows hope for ridding lakes of clawed invader
6. How parachute spiders invade new territory
7. Genes discovered that allow gum disease bacterium to invade arteries
8. SLU researchers uncover direct evidence on how HIV invades healthy cells
9. Ocean invaders in deep time
10. Ships bring alien jellyfish invaders to our shores
11. UNC plant researchers discover proteins interact to form hair-trigger protection against invaders

Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Grizzlies set invade high Arctic

(Date:6/18/2013)... $12.7 million to match nine academic research groups ... explore new treatments for patients in eight disease ... schizophrenia. The collaborative pilot initiative, called Discovering New ... the National Center for Advancing Translational Sciences (NCATS) ... The process of developing a new therapeutic is ...
(Date:6/18/2013)... chemical modification of DNA and this modification can ... sequence. Until now, scientists believed that this epigenetic ... Today, a team of researchers from the University ... Louis-Jeantet Professor at the Faculty of Medicine, reveals ... that DNA methylation may play both a passive ...
(Date:6/17/2013)... new virus in patients with severe brain infections in ... virus is responsible for the symptoms of disease. , ... out of 644 patients with severe brain infections in ... any of the 122 patients with non-infectious brain disorders ... central nervous system are often fatal and patients who ...
Breaking Biology News(10 mins):NIH to fund collaborations with industry to identify new uses for existing compounds 2NIH to fund collaborations with industry to identify new uses for existing compounds 3NIH to fund collaborations with industry to identify new uses for existing compounds 4The secret of DNA methylation 2New virus isolated from patients with severe brain infections 2New virus isolated from patients with severe brain infections 3
(Date:6/18/2013)... 2013 PathoGenetix, Inc. , ... rapid bacterial strain typing, announced today that John ... as Vice President of Engineering. Dr. Luckey will ... RESOLUTION™ Microbial Genotyping System . The fully ... pathogen-specific assay kits, database and software, will be ...
(Date:6/18/2013)... DC (PRWEB) June 18, 2013 On ... Services (CMS) released a final decision memorandum concluding ... to guide subsequent management of anti-tumor strategy, and ... collection. The National Oncological PET Registry (NOPR) was developed ... the first projects under the Coverage with Evidence Development ...
(Date:6/17/2013)... MA (PRWEB) June 17, 2013 ... system in March that helps better monitor potentially harmful ... The microAnalyzer V2.0, which was developed by Draper ... Space Station. , Astronauts breathe air that is processed ... to harmful compounds in the air, even in trace ...
(Date:6/17/2013)... 2013 The Defense Threat Reduction Agency ... at the Waterford in Springfield, Virginia on July 22-25 ... will present technical details on their counter weapons of ... broad range of counter WMD areas including: (1) Science ... Science; (3) Science for Protection; (4) Science to Defeat ...
Breaking Biology Technology:PathoGenetix Hires Technology Development VP for Resolution Microbial Genotyping System 2PathoGenetix Hires Technology Development VP for Resolution Microbial Genotyping System 3WMIS Welcomes CMS Decision: Expanding Coverage for FDG-PET and Ending NOPR Data 2WMIS Welcomes CMS Decision: Expanding Coverage for FDG-PET and Ending NOPR Data 3New Monitoring System Will Better Protect NASA Astronauts on ISS 2Invitation to Register: Annual Defense Threat Reduction Agency Basic Research Technical Review 2
Cached News: