Tag Archives: endangered

Polar Bears International responds to “The Politics of Polar Bears”

Well, sort of — what they did was provide a logical fallacy reply to an almost incoherent comment by a PBI Facebook supporter who had watched the documentary and complained of bias (such a predictable response).

See what you think, screen-cap below (taken September 3, 2014 at about 2PM Pacific Time.
[UPDATE added September 4, 2014 at 8:30PM Pacific, see below]

Continue reading

“The Politics of Polar Bears” lengthy excerpt airs across Canada – cue the outrage

Umbrage alert! Last night, a half-length short form of the powerful and balanced documentary “The Politics of Polar Bears” aired across Canada on the CBC’s flagship TV news program, The National.

Polar_Bear_2004-11-15_Wapusk Nat Park_Wikipedia

Right after it aired, they followed up with a lengthy online summary by the producer of the film, Reg Sherren (Polar bears: Threatened species or political pawn?”, September 2, with video of the 19 minute short program). Check out the comments below it! Excerpts and my comments below.

[Links to the full length film here and in my previous posts here and here]

UPDATED April 27 2015: Video now available on Youtube, imbedded below Full length video no longer available, short one at CBC here.

Continue reading

Has the tide turned on polar bears as icons of global warming?

The CBC in Canada is pretty much a mirror image of the BBC in the UK, ABC in Australia and PBS in the US. So you might appreciate my shock at the almost unbelievable balance contained in the recently broadcasted CBC documentary, “The Politics of Polar Bears: Tracking the Celebrity Bear.

The film is a profound change from the hype and pessimism that has dominated the polar bear issue in Canada and abroad, supported unchallenged by the CBC. Finally, TV viewers were given some decently balanced perspective on the status of polar bears in  Western Hudson Bay.

If the take-away message tipped towards reason and optimism rather than panic over the status of polar bears, it’s because the evidence was strongly in that direction.

Politics of polar bears title

Continue reading

W Hudson Bay mark-recapture studies of polar bears were invalid, says peer-reviewed study

“Our results suggest that mark–recapture estimates may have been negatively biased due to limited spatial sampling. We observed large numbers of bears summering in southeastern WH, an area not regularly sampled by mark–recapture.” Stapleton et al. 2014.

Polar bear at Wapusk National Park (just south of Churchill) in August 2011. Courtesy Parks Canada.

Polar bear at Wapusk National Park in August 2011. Courtesy Parks Canada.

We’ve seen the results of this 2011 study before, in government report format. But now it’s been revamped, peer-reviewed and published in a respected scientific journal – it actually came out in February, without fanfare, but I’ve only just come across it.

Some excerpts below, with conclusions that should raise some eyebrows.

Continue reading

‘Species-threatening’ population declines vs. polar bear declines

In 2008, polar bears in the United States were declared ‘threatened’ under the Endangered Species Act (USFWS 2008). The IUCN (to which the Polar Bear Specialist Group (PBSG) belongs) lists the polar bear as “vulnerable” (IUCN Red List 2012). In Canada (where 60% of the world’s polar bears reside), the polar bear is listed as a ‘species of special concern’ (COSEWIC 2008:iii).

As Jonathan Adler pointed out in an excellent article that appeared on the heels of the American ESA listing decision (Adler 2008:112), “Insofar as the listing is based upon climate models, ice-melt projections, and assumptions about the effects of habitat loss on the bear’s prospects for survival in the wild, its scientific basis is quite speculative.” These are also, as I understand it, unprecedented criteria for ESA listing – no other species has been listed as endangered or threatened based on such speculation of future conditions.

So what do actual polar bear population declines look like?

The Western Hudson Bay, Canada (WHB) subpopulation is the only one that has recently declined by a statistically-significant amount. [see previous post here on the status numbers] The WHB polar bear subpopulation makes up 3-5% of the global total for the species, currently estimated at 20,000-25,000 animals.

In this post, I’ll compare the documented WHB population decline to the declines seen in a few truly endangered animals, just to put the much-bandied about numbers into some perspective. Continue reading