Nunavut Government Study: “the [polar] bear population is not in crisis as people believed,”

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From the Daily Globe and Mail in Canada:

Healthy polar bear count confounds doomsayers

The debate about climate change and its impact on polar bears has intensified with the release of a survey that shows the bear population in a key part of northern Canada is far larger than many scientists thought, and might be growing.

The number of bears along the western shore of Hudson Bay, believed to be among the most threatened bear subpopulations, stands at 1,013 and could be even higher, according to the results of an aerial survey released Wednesday by the Government of Nunavut. That’s 66 per cent higher than estimates by other researchers who forecasted the numbers would fall to as low as 610 because of warming temperatures that melt ice faster and ruin bears’ ability to hunt. The Hudson Bay region, which straddles Nunavut and Manitoba, is critical because it’s considered a bellwether for how polar bears are doing elsewhere in the Arctic.

I located the survey done by the Government of Nunavut, here:

http://env.gov.nu.ca/sites/default/files/foxe_basin_polar_bears_2012.pdf

It seems sound in methodology. Some excerpts from it are posted below.

Summary

Polar bear population assessment in North America has historically relied on physical mark-recapture. These studies are logistically and financially intensive, and while widely accepted in the scientific community, local Inuit have voiced opposition to wildlife handling. To better reflect Inuit values and provide a rapid tool for monitoring polar bear population size, we developed and implemented an aerial survey in the Foxe Basin subpopulation (FB) during late summer, 2009 and 2010. FB, a seasonally ice-free subpopulation, spans some 1.1 million km2 in Nunavut. Polar bears concentrate along the coast during late summer, so we delineated survey zones based on proximity to the coastline.

We used coastal contour transects, inland transects oriented perpendicular to the coast, and total counts on a sample of small islands and ice floes. We focused effort in the high-density coastal region and designed protocols to enable simultaneous collection of double-observer and distance sampling data from a helicopter. We flew >300 hours and 40,000 km during each year’s survey and observed 816 and 1,003 individuals in 2009 and 2010, respectively. In both years, we observed high numbers of bears on islands in northern Foxe Basin and on Southampton Island, neighboring islands and near Lyon Inlet.

Encounter rates were highest near the coast, although bears were observed >40 km inland. The shape of the detection function differed substantially between years, likely attributable to observer experience and variable sighting conditions. However, our abundance estimates were highly consistent between years and survey methods, (~2,580 bears (95% CI: about 2,100 – 3,200), and were comparable to an estimate from the early 1990s. Our results suggest that Nunavut’s management regime has enabled polar bear abundance in FB to remain relatively stable.

Whereas mark−recapture data provide direct estimates of population growth, aerial survey data yield information population on trend only via a time series of population estimates; accordingly, reliance on such data may require more conservative harvest management. The FB aerial surveys provide a framework for future studies during the ice-free season. Ongoing analysis will evaluate the distribution of bears in Foxe Basin and assess alternatives for long-term monitoring.

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Figure 2. Transects flown during the Foxe Basin polar bear subpopulation aerial survey, August to October, 2010.

Results

We completed the FB aerial surveys during August – September, 2009 and August – October, 2010. We successfully sampled nearly all planned transects in both years (Figure 2), despite particularly challenging weather conditions in 2010. We observed 816 and 1,003 polar bears, including 616 and 790 independent bears, in 2009 and 2010, respectively. Observed litter sizes were similar between years: in 2009, cub of the year (coy) and yearling / 2-year-old litter sizes averaged 1.57 (SD: 0.55, n = 75) and 1.55 (SD: 0.54, n = 53); mean litter sizes were 1.53 (SD: 0.57, n = 80) and 1.40 (SD: 0.50, n=65) for coy and yearlings / 2-year-olds, respectively, in 2010.

The distribution of polar bears was generally consistent between years (Figure 3). High concentrations of bears were observed in central Foxe Basin near Lyon Inlet and on Southampton Island and neighboring Coats, Vansittart, and White Islands and in northern Foxe Basin on Rowley, Koch, Prince Charles, and the Spicer Islands. Relatively few bears were spotted along Hudson Strait and in the Bowman Bay region of western Baffin Island, and sightings were rare near communities. Bears were most frequently observed along coastal contour transects, in the nearshore inland stratum and on large and small islands, but sightings were documented across all strata (Figure 3).

Total Abundance

Despite different analytical techniques and detection functions, the four preliminary abundance estimates were remarkably consistent (Table 2). Model averaging yielded a preliminary overall abundance estimate of about 2,580 bears in the Foxe Basin subpopulation, with a 95% lognormal confidence interval of 2,093 to 3,180 (CV: 10.7%).

Survey done by the Government of Nunavut, here:

http://env.gov.nu.ca/sites/default/files/foxe_basin_polar_bears_2012.pdf

It seems like a superior methodology to say, seeing three drowned polar bears at sea after a storm and then extrapolating that to the entire population like one now discredited and disgraced researcher did. Of course, honest science like what was done in this survey doesn’t make headlines or wailing and gnashing of teeth by NGO’s and Al Gore, and even Science magazine who much prefer to stick to the view of a declining Ursus Bogus population:

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Back to the Globe and Mail article:

The study shows that “the bear population is not in crisis as people believed,” said Drikus Gissing, Nunavut’s director of wildlife management. “There is no doom and gloom.”

Mr. Gissing added that the government isn’t dismissing concerns about climate change, but he said Nunavut wants to base bear-management practices on current information “and not predictions about what might happen.”

The debate over the polar-bear population has been raging for years, frequently pitting scientists against Inuit. In 2004, Environment Canada researchers concluded that the numbers in the region had dropped by 22 per cent since 1984, to 935. They also estimated that by 2011, the population would decrease to about 610. That sparked worldwide concern about the future of the bears and prompted the Canadian and American governments to introduce legislation to protect them.

But many Inuit communities said the researchers were wrong. They said the bear population was increasing and they cited reports from hunters who kept seeing more bears. Mr. Gissing said that encouraged the government to conduct the recent study, which involved 8,000 kilometres of aerial surveying last August along the coast and offshore islands.

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What I found most interesting is the clear message that polar bears are thriving in an environment where sea ice (NSIDC includes Hudson Bay as sea ice) seasonally disappears entirely.

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Note in the Cryosphere Today comparison image above, Hudson Bay is completely ice free around the time of Arctic maximum melt ~ Sept 30.

It seems the Polar bears can adapt to non-existent sea ice and do just fine.

Of course this isn’t news, as I’ve previously reported: Polar Bears Survived the Ice Free Arctic

So when you see claims like this one from the National Resources Defense Council

Scientists predict that Arctic summers could be ice-free by the middle of this century-without sea ice, polar bears cannot survive.

Or this one from Polar Bears International

Asked by CNSNews.com about the IUCN body’s findings regarding populations remaining stable, Buchanan pointed out the group’s acknowledgment of insufficient data in some of the 19 sub-populations. He concluded that “without ice polar bears can’t survive.”

…we can pull out Dr. Roger Pielke Jr.’s handy button that he provided for the IPCC SREx report and apply it to polar bears and sea ice, citing the survey done by the Government of Nunavut.

 

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Gary
April 5, 2012 10:10 am

Shelby Steele, writing in today’s Wall Street Journal about the Treyvon Martin tragedy, makes a point about what he calls “poetic truth.”

Poetic truth is like poetic license where one breaks grammatical rules for effect. Better to break the rule than lose the effect. Poetic truth lies just a little; it bends the actual truth in order to highlight what it believes is a larger and more important truth. … The great trick of poetic truth is to pass itself off as the deep and essential truth so that hard facts that refute it must be dismissed in the name of truth.

This applies to global warming alarmism and polar bear populations as a specific example just as well as. The point is that truth is absolute (despite what people say to justify themselves). A little bending makes it no longer the truth. And if something isn’t true, it’s sure to do you more harm than good.

Nick in vancouver
April 5, 2012 10:12 am

Polar Bears have been making it onto Newfoundland, with the increase in sea ice, this year. Having a ball eating sheep and chickens. Not great for the 4 or 2 legged locals, one had his house broken into by a nosy bear and another, which was the ultimate insult to a canuk, had his snow mobile trashed.

April 5, 2012 10:17 am

The Globe and Mail understates the case. They wrote, “The number of bears along the western shore of Hudson Bay, believed to be among the most threatened bear subpopulations, stands at 1,013 and could be even higher.” However, the study makes it clear that 1013 bears were actually sighted, and the estimated bear population is actual 2000-3000. It would seem that it is this number (2-3K) which should be compared with Environment Canada’s prediction of 610. In other words, EC wasn’t within a country mile.

shrnfr
April 5, 2012 10:19 am

Big Al Gorge can hardly “bear” to hear the news…

Political Junkie
April 5, 2012 10:20 am

“Environmentalists” ALWAYS heed and yield to the wisdom of the aboriginal elders (except when the elders report something positive!).

P Walker
April 5, 2012 10:27 am

I’ve been wondering for years why anyone thought that Polar bears needed ice to survive .

April 5, 2012 10:35 am

Michael Palmer says:
April 5, 2012 at 9:29 am
Maybe global warming doesn’t kill polar bears after all, but just makes them bipolar?
xxxxxxxxxxxxxxxxxxxxxxxxxx
THATS CUTE!! Thank you for the link! 🙂

Bob Diaz
April 5, 2012 10:38 am

// SATIRE //
What’s wrong with there stupid bears? The computer models and environmentalists are saying that their numbers are dropping like crazy. Clearly the bears need to be properly educated. Please send large sums of money to ….

Paul Westhaver
April 5, 2012 10:39 am

After suffering the effects of a beating stick by we skeptics, some science has now been done. Low and behold the results are the OPPOSITE oo what the EPA based putting the polar bears in the “at risk” category.
Message to you so-called scientists…. if you want to remain credible and not be relegated to the ash-heap of history as priests of a dead green religion… just shut up about things you don’t understand and stay out of politics, particularly when the science affecting the politics has not been done.
This is yet another case in point of Abuse of Science by Greens.
The federal government of Canada ought to investigate the abuse of federal funds in “green” research. They should prosecute researchers who engaged in science fraud.

April 5, 2012 10:39 am

The North mayby lousy with polar bears tripping over each other and waiting their turn by the dumsters, but one of this matters. Warmies are just doubling-up on the message, holding a steady course until their ship goes down. Then they’ll walk to the shore on the back of crowded polar bears and will jump on the next pork wagon, “sustainablity.”
Btw, Stilgar, as in Stilgar the Naib at Sietch Tabr? Ok, all Dunies here raise a hand; mine’s up.

April 5, 2012 10:43 am

The doomsayers need to l’arn sompfin from dem b’ars. First of all, Bears and Models are mutually exclusive, unless Daryl Hannah is in the mix. And then, it’s only a one-time affair. Secondly, Ursus Maritimus is adept at adaptation. After all, it BECAME so as a result of climate change. You know, it adapted, see? Like a Ptarmigan or a Snowshoe Hare, only cuter and more dangerous. Thirdly, Doom and Gloom are so last year. Now it’s gloom and disruption. Where’s Kari Norgaard when you need her?

April 5, 2012 10:49 am

Luther Wu says:
April 5, 2012 at 10:09 am
We all know we’re guilty.

Like I said, where is Kari when we neeeeeeeed her.

Russ R.
April 5, 2012 10:56 am

It’s worth taking a look at the comments section in the Globe and Mail article.
The commentary from online readers is predominantly skeptical of environmental alarmism.

April 5, 2012 10:56 am

BREAKING
In October, two IG agents interviewed Jeffrey Gleason, an avian biologist and Interior employee who co-authored that paper. In a tense conversation — revealed in the transcript PEER released today — agents Eric May and John Meskel questioned the validity of the database Gleason and Monnett used to conclude an uptick in polar bear deaths in open water.
Now investigators are turning their sights on the current operator of that database: the National Oceanic and Atmospheric Administration. In an email sent in January, and provided by PEER, May asks to interview the employee in NOAA’s National Marine Mammal Lab who oversees the surveys recorded in the database…”
http://junkscience.com/2012/04/05/update-polar-bear-gate-investigation-goes-interagency/

crosspatch
April 5, 2012 11:17 am

That’s 66 per cent higher than estimates by other researchers who forecasted the numbers would fall to as low as 610 because of warming temperatures that melt ice faster and ruin bears’ ability to hunt.

Wasn’t it those researchers’ forecasts that were the basis for EPA’s regulating CO2? Since that has now been falsified by observational data, wouldn’t that justify the reversal of EPA CO2 regulations?
The coal mining industry might be interested in that study. The United Mine Workers are pretty upset at the EPA right now.

lowercasefred
April 5, 2012 11:23 am

I’m so surprised. But did they see the manbearpig?
1. Have they told Al?
2. What did he say?

Baa Humbug
April 5, 2012 11:26 am

I’ll let you all in on a secret but please don’t tell the warmists.
The Tourism Bureau of Nunavut employed out of work oil drillers and uni students to wear polar bear suits during survey flights. There is NO evidence that the sighted bears were bears.

Michael D Smith
April 5, 2012 11:28 am

Good comment at G&M:
“Polar bear population feared healthy, Big Environment fundraisers find”
or
“In serious climate change, the polar bear will migrate south and the homeless will become part of their natural diet”
(homeless no doubt created by anti-carbon initiatives)

Jenn Oates
April 5, 2012 11:28 am

Well…I didn’t believe it.
But I don’t live in the echo chamber, and reception is much better out here. Facts have a habit of actually making it through on a regular basis!

Tenuk
April 5, 2012 11:28 am

Populations not recovering. Just lots of Inuit hunting guides crawling round wearing polar bear skins. They depend on rich hunters from the West for a good part of their income./sarc

RHS
April 5, 2012 11:33 am

As long as the Polar Bears don’t run out of Coke and Penguins, they’ll be alright.
/Sarc

Latitude
April 5, 2012 11:33 am

They tried this same ‘trick’ with manatees…..
the green groups were in control of counting manatee populations
Until Fish and Wildlife had to answer to the commercial fishing, diving, and boating industries….
…and the real numbers came out
Manatees were not endangered at all………….

April 5, 2012 12:25 pm

From January 2008…
Local Inuit hunters say there are lots of polar bears.
But Greenpeace says they are in danger from global warming.
Bear litigation a ploy, say Inuit groups
Environmentalists’ lawsuit “is not very constructive, but meant for publicity.”
http://www.nunatsiaqonline.ca/archives/2008/801/80118/news/nunavut/80118_858.html

KNR
April 5, 2012 12:27 pm

Now normal the AGW fan club are very keen on ‘Native Wisdom’ it suits all that Gaia BS.
But I have a feeling in this case these native’s wisdom will worth nothing compared to the ‘experts’
By the way how is the ‘king of the polar bear scare ‘ doing these days , he was under investgation but that has all gone quite , so anyone know?

April 5, 2012 12:48 pm

Solar power, polar bears, entire countries submerged by the ocean, hockey sticks, tree rings, hurricane frequency, thermometers adjacent to air conditioners, wind farms… this so called “science” just keeps on comin’.
One starts to wonder if the real agenda is less about global warming, or even the redistribution of wealth. And more about the destruction of science itself.
Science has represented a lethal threat to ideology in many periods throughout history. I’m sure there are some who would like to see that threat neutralized through a comprehensive discrediting of its findings.