Study finds robust polar bear population in sea near Alaska

In this undated photo provided by Eric Regehr, polar bears are seen on Wrangel Island in the Arctic Circle. (AP)
Updated 21 November 2018
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Study finds robust polar bear population in sea near Alaska

  • Polar bears are classified as marine mammals because they spend most of their lives on sea ice

ANCHORAGE, Alaska: The first formal count of polar bears in waters between the United States and Russia indicates they’re doing better than some of their cousins elsewhere.
Polar bears are listed as a threatened species because of diminished sea ice due to climate change. But university and federal researchers estimate a robust and abundant population of nearly 3,000 animals in the Chukchi Sea off Alaska’s northwest coast, according to a study published Wednesday in Scientific Reports.
“It the near-term, it’s absolutely good news,” said lead author Eric Regehr, who began the project more than a decade ago as a US Fish and Wildlife Service biologist and last year joined the University of Washington’s Polar Science Center.
In the longer term, it doesn’t mean the Chukchi Sea bear population will not be affected.
“Polar bears need ice to hunt seals, and the ice is projected to decline until the underlying problem of climate change is addressed,” Regehr said.
The study shows there is variation around the world in the effects of sea ice loss on polar bears, he said Thursday.
“Some subpopulations are already declining while others are still doing OK,” he said.
Polar bears are classified as marine mammals because they spend most of their lives on sea ice. Less sea ice means less productive time to hunt ice seals, more time on shore and longer, energy-sapping swims.
The world’s polar bears are divided into 19 subpopulations, including two in US waters. Besides Chukchi bears, the United States shares the southern Beaufort Sea population with Canada.
Stress in southern Beaufort bears from a loss of sea ice was partly why the United States in 2008 declared polar bears a threatened species.
Fewer cubs were surviving into their second year and adult males weighed less and had smaller skulls, the US Geological Survey found. Researcher Steven Amstrup at the time said the trends were consistent with changes in nutritional status likely associated with declines in sea ice.
A more recent study by USGS research Karyn Rode found that Chukchi bears spend more time on shore and have almost 30 fewer days to hunt seals on ice than 20 years ago, Regehr said. However, that doesn’t appear to have affected the population, he said.
Polar bears have an amazing ability to build fat reserves, Regehr said, and the Chukchi’s abundant seal population apparently allows bears to compensate for the loss of hunting time. The difference with the southern Beaufort was obvious from an airplane, he said.
“It’s visually striking to me, the difference, having worked in both places,” Regehr said.
When ice melts, many Chukchi bears rest on Russia’s Wrangell Island, where they occasionally can find a whale or walrus carcass.
The Chukchi population study used data collected by sampling about 60 polar bears between 2008 and 2016. Some were fitted with GPS transmitters. The data was used in a model designed to estimate population size for highly mobile large carnivores.
Blaine Griffen, an associate professor of biology at Brigham Young University, said the study was good news.
“It’s nice to see that there’s at least one population that’s doing better than others,” he said.
The difference may be geography, he said. The Chukchi Sea has a more extensive continental shelf area with primary productivity that enables the food chain to support seals.
The research agrees with past studies that suggested Chukchi bears would do better than bears elsewhere, Griffen said.


Need to vent some anger? Jordan opens ‘Axe Rage Rooms’

Updated 18 April 2019
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Need to vent some anger? Jordan opens ‘Axe Rage Rooms’

  • People can demolish old items as well as smash plates and glasses — but for the price of $17
  • So-called rage rooms have been opening up around the world

AMMAN: In an underground room in Amman, a small group of Jordanians swing giant hammers at an old television, computer and printer, wrecking the machines, and then hit a car windscreen, shattering the glass into tiny pieces.
In the “Axe Rage Rooms,” people can vent their anger and frustration by demolishing old items as well as smashing plates and glasses.
“This is simply a place to break things and vent,” co-founder and general manager Ala’din Atari said. “A place where people come when they’re looking for a new experience... walking into a room with various items which they can break.”
So-called rage rooms have opened around the world, drawing visitors who want let their hair down and unleash some anger.
At the “Axe Rage Rooms,” where the experience costs $17, participants wearing protective suits and helmets wrote the issues bothering them on a blackboard — “ex-girlfriends,” “boss” and “all boyfriends,” the words becoming the targets of their anger.
Atari said his venue, which has seen about 10 clients a day in the month since it opened, had a space for couples, where the pair enter two rooms separated by a reinforced glass window.
“I wanted to try something new and...it was great,” said Ayla Alqadi, 23, after chucking old kitchenware at the window — behind which stood a friend.
“I felt like I had extra energy, it was a way to channel all the negativity inside, everything you feel inside you can release here.”