Category Archives: Population

Activist explorer blames more polar bear encounters since 1985 on reduced sea ice

Activist polar explorer Børge Ousland’s told National Geographic that more polar bear encounters on land are due to reduced sea ice –  without any reference to population changes over that time or revealing when or where these observations were made.

IceLegacy_NG video Sept 30 2015

More vague anecdotal observations and opinions posing as scientific evidence.
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Barents Sea polar bears in excellent condition say Norwegian biologists

Conditions this year (2015) in the Barents Sea were excellent according to the polar bear researchers who work there (Polar bears were as fat as pigs”).

Barents Sea bear 2015 August Cobbing_NPI
A new survey just completed for a population count showed the bears were are in excellent condition – except the injured ones, of course, which some news organizations are promoting as evidence of harm from global warming-induced sea ice changes because an activist photographer  – not scientists – said so.

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Polar bear doom and gloom from USGS vs. biologist Mitch Taylor’s reasoned thoughts

A few days ago polar bear biologist Mitch Taylor and Nunavut’s Gabriel Niryungaluk talked to Toronto radio host Roy Green about the recent USGS dire model predictions for the future of polar bears.

Taylor interview_5 July 2015 Polar bear numbers_radio

There’s an audio podcast and, courtesy of the valuable efforts of fellow blogger Alex Cull, a transcript. Links below, plus some excerpts of Mitch Taylor’s commentary.
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Polar bears fine now but give us more money: US Fish & Wildlife Management Plan subtext

Between-the-lines message of the recently released (and hyped to death) Conservation Management Plan for polar bears by the US Fish & Wildlife Service is that the bears really have nothing to worry about except human-caused global warming but it will cost tens of millions of dollars over the next five years to study and manage them.

polar_bear_usfws_no date_sm

So filled with double-speak, misinformation, and obfuscation [including the newly-invented term, “quasi-extinction floor”] that it’s no wonder some news outlets got it wrong (nowhere in this document does it say that polar bears might go extinct within ten years“). The document does, however, lay out the FWS budget for polar bears over the next five years – and it’s a real eye-opener.

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Global polar bear population size is about 26,000 (20,000-32,000), despite PBSG waffling

The IUCN Polar Bear Specialist Group admits its global population estimate is simply a qualified guess with a large potential error.  So perhaps it’s time to acknowledge that for the purpose of comparing polar bears to other species of concern, the upper limit for polar bear numbers worldwide could be more than 30,000?

Polar bears USFWS_cover PolarBearNews2013_2014

See previous posts on this global population size issue (here and here); updated information below, including the most recent IUCN PBSG statement.

UPDATED 1 September 2015: here is an updated graph of polar bear population numbers that undo the “subtractions” of the PBSG between 2001 & 2013, giving a final global estimate of about 26,000 (click to enlarge):

Crockford unofficial polar bear numbers to 2015 Sept 1 FINAL
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University newspaper misleads readers on status of Western Hudson Bay polar bears

Even though polar bear experts admit there has been no trend in sea ice breakup or freeze-up dates since 2001 – and both Canadian and International experts say this subpopulation is stable – the public is still being misled about the status and condition of polar bears in Western Hudson Bay.

WHB status 2015 IUCN PBSG_PolarBearScience

The latest example of misinformation about Western Hudson Bay polar bears appears in a feature story carried by the campus newspaper of York University (Ontario, Canada), meant to highlight the work of biology graduate student Luana Sciullo.1
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Supporting document for Canada’s polar bear status maps reveal surprises

My request to Environment Canada in early December 2014 for the documents supporting their polar bear status maps has finally generated results.

In an email dated 2 March 2015, I received the document produced by the EC Polar Bear Technical Committee (PBTC). I waited to see if it would be appended to the webpage where the maps were posted last year (reported here and here). However, as of today, that has not happened, so I am posting it here. There are some rather striking differences that may surprise you.

UPDATE 22 March 2015: A copy of the letter from the Director General of the Canadian Wildlife Service that accompanied the document below, which I forgot to include, is here. It states that the once a new status table has been compiled (provided below), “it is reviewed by the Polar Bear Administrative Committee and then becomes a public document.” The implication is that the reviewed document has not yet been produced.
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