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Old 12-06-2013, 01:28 PM   #1
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Default Polar bear numbers in Hudson Bay of Canada on verge of collapse

Polar bear numbers in Hudson Bay of Canada on verge of collapse


Polar bear numbers in Hudson Bay of Canada on verge of collapse | Environment | theguardian.com

Quote:
The rate of decline – and an even sharper drop in the birth and survival rate of young cubs – puts the entire population of western Hudson Bay polar bears at risk of collapse within a matter of years, scientists have warned.

[...]

The latest Canadian government estimates, which have yet to be shared with independent scientists or the public, confirm scientists' fears that the polar bears of the western Hudson Bay have little chance of long-term survival.

[...]

Polar bear experts had been braced for a 10% decline in the western Hudson Bay population, based on observations about the retreat of sea ice and the deteriorating condition of polar bears, especially mothers and cubs.

The ice-free season in Hudson Bay has expanded by about a day every year for the past 30 years, reaching 143 days last year. Scientists have predicted polar bears will be unable to survive once it reaches 160 days.

Earlier break-up is forcing polar bears off the ice at their peak feeding time in the spring, when bears typically pack on two-thirds of the weight they need to survive the year.

With freeze-up occurring later each year, bears are skinnier and less healthy when it comes time to return to the ice.
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Old 12-12-2013, 05:24 PM   #2
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Default Western Hudson Bay polar bears are not like the others – Part 1

Western Hudson Bay polar bears are not like the others – Part 1
Polar Bear Science Past and Present
Posted on September 26, 2012

Western Hudson Bay polar bears are not like the others – Part 1 | polarbearscience
excerpt from above:
Quote:
A review paper, purporting to list the “effects of climate warming on polar bears” (Stirling and Derocher 2012:2697), has this to say about the state of research in western Hudson Bay:

“The most comprehensive long-term research on polar bear demography, body condition, subpopulation size, abundance, and reproductive success has been conducted on the Western Hudson Bay subpopulation.”

This means that compared to all of the 19 subpopulations of polar bears (see fig. 1), the very best information we have is for Western Hudson Bay (WHB) bears (fig. 2).

But are western Hudson Bay polar bears biologically typical of all polar bears? In this post, I’ll begin to examine that question...
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Old 12-12-2013, 05:29 PM   #3
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Default Challenging “save the polar bear” propaganda

Challenging “save the polar bear” propaganda
Climate Change Dispatch
Posted on November 5, 2013

http://www.climatechangedispatch.com/11791-challenging-save-the-polar-bear-propaganda.html
excerpt from above:
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From The Guardian Environment Blog:

“On Wednesday, 6 November at 10am EST and 3pm GMT you will have a chance to ask a scientist [Steven Amstrup] and a conservationist [Krista Wright] about the latest research on the state of polar bears – and the efforts to protect them.”

The “participants” of this webchat are Polar Bears International (PBI) employees. PBI is a lobbyist organization
that uses its influence to pressure politicians and supposedly impartial scientific organizations, like the IUCN Polar Bear Specialist Group (PBSG), to make decisions that fit their agenda. The PBI rallying cry is “Save Our Sea Ice.” They are committed to promoting legislation to curtail supposed effects of anthropogenic global warming and are using polar bears as a tool to do so.

Dr. Steve Amstrup is now a full-time, professional activist and spokesperson for PBI (“Chief Scientist and Vice President”), a job he took on after a long career as a polar bear biologist. Arranging “webchats” like this is part of the job he is now paid to do.

Krista Wright has a Bachelors degree in Outdoor Education and has worked for NGOs for more than 20 years. She joined PBI in 2009 and is now the Executive Director (i.e., an administrator). She is described as “a passionate conservationist who is deeply concerned about the effects of global warming on polar bears, the Arctic, and the planet.” She brings emotion to this event, not science...
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Old 12-12-2013, 05:33 PM   #4
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Default Polar bear researchers still withholding Hudson Bay data

Polar bear researchers still withholding Hudson Bay data
Polar Bear Science Past and Present
Posted on November 28, 2013

Polar bear researchers still withholding Hudson Bay data | polarbearscience
excerpt from above:
Quote:
Finally, Goldenberg gets to the guts of her story: she highlights previously unreported data given to her by activist polar bear researchers who work in Western Hudson Bay with some fancy graphics (a couple of them copied below).

The newest population estimate (see Fig. 1) is based on data only she has seen: it has not been reported anywhere for anyone to see the background details. I’d bet that even this headline-generator for The Guardian hasn’t seen the full report, but was given only the final numbers. She states...
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Old 12-16-2013, 01:51 PM   #5
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Eeash.... I guess this is another example of how if we don't spend the time yahooing or googling for ourselves and checking facts on our own so we can ask the right questions and start following the $$$.... we'd end up believing the 1st source.... which.... probably never saw the report and probably was only given final numbers.
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