Polar Bear Specialist Group says its global population estimate was “a qualified guess”
By Dr. Susan Crockford | Watts Up With That? | June 2, 2014
Last week (May 22), I received an unsolicited email from Dr. Dag Vongraven, the current chairman of the IUCN Polar Bear Specialist Group (PBSG).
The email from Vongraven began this way:
“Dr. Crockford
Below you’ll find a footnote that will accompany a total polar bear population size range in the circumpolar polar bear action plan that we are currently drafting together with the Parties to the 1973 Agreement. This might keep you blogging for a day or two.” [my bold]
It appears the PBSG have come to the realization that public outrage (or just confusion) is brewing over their global population estimates and some damage control is perhaps called for. Their solution — bury a statement of clarification within their next official missive (which I have commented upon here).
Instead of issuing a press release to clarify matters to the public immediately, Vongraven decided he would let me take care of informing the public that this global estimate may not be what it seems.
OK, I’ll oblige (I am traveling in Russia on business and finding it very hard to do even short posts – more on that later). The footnote Vongraven sent is below, with some comments from me. You can decide for yourself if the PBSG have been straight-forward about the nature of their global population estimates and transparent about the purpose for issuing it.
Here is the statement that the PBSG proposes to insert as a footnote in their forthcoming Circumpolar Polar Bear Action Plan draft:
“As part of past status reports, the PBSG has traditionally estimated a range for the total number of polar bears in the circumpolar Arctic. Since 2005, this range has been 20-25,000. It is important to realize that this range never has been an estimate of total abundance in a scientific sense, but simply a qualified guess given to satisfy public demand. It is also important to note that even though we have scientifically valid estimates for a majority of the subpopulations, some are dated. Furthermore, there are no abundance estimates for the Arctic Basin, East Greenland, and the Russian subpopulations. Consequently, there is either no, or only rudimentary, knowledge to support guesses about the possible abundance of polar bears in approximately half the areas they occupy. Thus, the range given for total global population should be viewed with great caution as it cannot be used to assess population trend over the long term.” [my bold]
So, the global estimates were “…simply a qualified guess given to satisfy public demand” and according to this statement, were never meant to be considered scientific estimates, despite what they were called, the scientific group that issued them, and how they were used (see footnote below).
All this glosses over what I think is a critical point: none of these ‘global population estimates’ (from 2001 onward) came anywhere close to being estimates of the actual world population size of polar bears (regardless of how scientifically inaccurate they might have been) — rather, they were estimates of only the subpopulations that Arctic biologists have tried to count.
For example, the PBSG’s most recent global estimate (range 13,071-24,238) ignores five very large subpopulation regions which between them potentially contain 1/3 as many additional bears as the official estimate includes (see map below). The PBSG effectively gives them each an estimate of zero.
Based on previous PBSG estimates and other research reports, it appears there are probably at least another 6,000 or so bears living in these regions and perhaps as many as 9,000 (or more) that are not included in any PBSG “global population estimate”: Chukchi Sea ~2,000-3,000; East Greenland, ~ 2,000-3,000; the two Russian regions together (Laptev Sea and Kara Sea), another ~2,000-3,000 or so, plus 200 or so in the central Arctic Basin. These are guesses, to be sure, but they at least give a potential size
In other words, rather than assigning a “simple, qualified guess” for these subpopulations that have not been formally counted as well as those that have been counted (generating a total figure that is indeed a “global population estimate,” however inaccurate), the PBSG have been passing off their estimate of counted populations as a true global population estimate, with caveats seldom included.
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Why the UK, the EU and the US Gang-Up on Russia
By James Petras :: 03.20.2018
Introduction: For the greater part of a decade the US, the UK and the EU have been carrying out a campaign to undermine and overthrow the Russia government and in particular to oust President Putin. Fundamental issues are at stake including the real possibility of a nuclear war.
The most recent western propaganda campaign and one of the most virulent is the charge launched by the UK regime of Prime Minister Theresa May. The Brits have claimed that Russian secret agents conspired to poison a former Russian double-agent and his daughter in England, threatening the sovereignty and safety of the British people. No evidence has ever been presented. Instead the UK expelled Russian diplomats and demands harsher sanctions, to increase tensions. The UK and its US and EU patrons are moving toward a break in relations and a military build-up.
A number of fundamental questions arise regarding the origins and growing intensity of this anti-Russian animus.
Why do the Western regimes now feel Russia is a greater threat then in the past? Do they believe Russia is more vulnerable to Western threats or attacks? Why do the Western military leaders seek to undermine Russia’s defenses? Do the US economic elites believe it is possible to provoke an economic crisis and the demise of President Putin’s government? What is the strategic goal of Western policymakers? Why has the UK regime taken the lead in the anti-Russian crusade via the fake toxin accusations at this time?
This paper is directed at providing key elements to address these questions. … continue
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