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Wrong Jon Aars?

Jon Aars

Polar Bear Scientist

Norwegian Polar Institute

HQ Phone:  +47 79 02 26 00

Email: j***@***.no

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I agree to the Terms of Service and Privacy Policy. I understand that I will receive a subscription to ZoomInfo Community Edition at no charge in exchange for downloading and installing the ZoomInfo Contact Contributor utility which, among other features, involves sharing my business contacts as well as headers and signature blocks from emails that I receive.

Norwegian Polar Institute

Framsenteret Postboks 6066 Langnes

Tromso, Troms,9296

Norway

Company Description

The Norwegian Polar Institute is Norway's central governmental institution for scientific research, mapping and environmental monitoring in the Arctic and the Antarctic. The Institute advises Norwegian authorities on matters concerning polar environmental mana...more

Background Information

Employment History

Scientist

Polar Bears International


Web References(70 Total References)


Anna LoPresti, Author at GlacierHub

glacierhub.org [cached]

The paper, written by Magnus Anderson and Jon Aars, of the Norwegian Polar Institute, comprehensively covers the history of polar bear population changes over the course of 100 years.
Anderson and Aars cite prior studies conducted by Carla Freitas, Ian Stirling, and others which have tracked trends in polar bear movement with GPS collars and have found that the thickness and persistence of ice significantly affects the location of polar bears and their hunting grounds.


Donate | WWF-Canada

www.wwf.ca [cached]

? Jon Aars / Norwegian Polar Institute / WWF


Testimonials | RJL Systems

www.rjlsystems.com [cached]

Jon Aars
Norwegian Polar Institute


Meltdown: Vanishing Polar Ice | Alicia Patterson Foundation

aliciapatterson.org [cached]

Scientists Jon Aars and Magnus Andersen collect data and samples from sedated six-year-old male polar bear in Wahlenbergfjorden at Nordaustlandet, Svalbard, Norway.
Scientists Jon Aars and Morten Tryland sort samples after centrifuging blood from six-year-old male polar bear aboard coast guard icebreaker K/V Svalbard in Wahlenbergfjorden at Nordaustlandet, Svalbard, Norway. When biologist Jon Aars joined us by helicopter aboard Svalbard, he shared a wealth of information about Svalbard bears. As head of the Norwegian Polar Institute's polar bear program, he has spent many seasons chasing bears, sedating them from helicopters with rifle-fired darts, collecting blood and fat samples and then tagging them with ear loggers and GPS collars. He has caught some of the same bears that are raiding Prop's study sites and tracked them by GPS satellite telemetry. After Prop filmed one bear whose fluffy cubs were rolling seabird eggs around like tennis balls, Aars discovered that she had swum 17 hours to an outer island and spent the rest of the summer along its west coast facing the open sea. Aars guessed she was probably hunting harbor seal pups on land. If so, she is one of the lucky few that has figured out how to feast on eggs and blubber throughout summer despite the absence of ice. "Polar bears are not having a bad time here yet, but that doesn't mean they won't in the future," Aars said. I helped Aars collect a plug of fat from the bear's rump, a messy, bloody affair, but a necessary indignity for determining its diet. Ringed seal and bearded seal, its two favorite meals, have distinct and very different fatty acids that can be readily identified in the lab. Though bears can go six months without food, living off their own fat reserves, seal blubber is their mainstay. Bearded and ringed seals hunt from ice and look for areas where fish and seafloor prey are most plentiful. That often translates to ice along shore, but in Svalbard that habitat is disappearing. "The Barents Sea is the fastest changing area [in the Arctic] in sea ice, and modelling predicts faster changes coming," Aars said, "so it could be very difficult to be a polar bear here.


Impressions of Polar Bears in Svalbard in Early Summer, 2006-2014 - Polar Bears International

polarbearsinternational.org [cached]

Perhaps not surprisingly, in view of these factors, in April 2014, Dr. Jon Aars of the Norwegian Polar Institute documented a marked reduction in reproductive success in Svalbard's polar bears.
Only 10% of his sample of adult female polar bears with satellite radios (10 of 29) were accompanied by newborn cubs compared to a more normal rate in excess of 30% (see related news item).


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