Dr. Susan Crockford writes:
Davis Strait polar bear habitat higher now than in 1979 and early 1980s
The Davis Strait polar bear subpopulation is said to be ‘vulnerable’ to the supposed effects of global warming because, like Hudson Bay, Davis Strait sea ice retreats every summer, leaving polar bears on land for several months.
However, Davis Strait bears have been upgraded to ‘stable’ status, according to the latest table (2013) issued by the IUCN Polar Bear Specialist Group (see their boundary map for Davis Strait bears below). Recent development of sea ice in the region can only improve that rating.
Yeah, all that sea ice is tragic, isn’t it?
More here: http://polarbearscience.com/2014/03/13/davis-strait-polar-bear-habitat-higher-now-than-in-1979-and-early-1980s/
See also, the WUWT Sea Ice Page: http://wattsupwiththat.com/reference-pages/sea-ice-page/
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climateace says:
March 13, 2014 at 7:18 pm
goldminor says
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The dip at the end of this trend line is about 5 days long. I look at this every day. I pointed out back in December that the Arctic sea ice had shifted its growth rate. Yes, it has stayed low ever since early December as a consequence. Now, I am pointing out a new movement. Up to this point the melt conditions have been mainly influenced by the Atlantic current. It is still being melted by that warm current. This jetstream change has added a new dimension, especially as it is carrying a good bit of relatively warm rain for the area. This could be breaking up the heavier sea ice that was off the Greenland coast this season. I was just reading that there are a lot of icebergs in the Atlantic and a warning has been issued. The next week will show if the sea ice is going to take a bit of a nosedive past where it now stands….http://nsidc.org/arcticseaicenews/
Rivers, not climate….
http://www.wired.com/wiredscience/2014/03/grawk-warm-rivers-arctic-ice/
For our second Science Graphic of the Week, we bring you some beautiful views of some bad news. The images in the gallery above show how pulses of warm water, dumped into chilly Arctic seas by rivers crossing continents, are melting sea ice.
[CRS, DrPH
Rivers, not climate….]
And there is no connection between rivers and climate?
Is the headline for this thread misleading?
Ice extent may be higher in David Strait compared with 40 years ago but is this the case for ice extent over much of the range of Polar Bears?
Sorry but I think this post is close to pandering to junk science, specifically that a species in an extremely hostile environment must necessary be reliant on that environment remaining hostile.
Have we got a situation here where another predator is likely to move in if the Arctic were to become ice free?
The grizzly bear will migrate north and displace the polar bear?
The food supply will decline if the phyto-plankton multiply during an extended warm period?
There are some strong statements being made about the survival polar bears that need truly bizarre theories of biology and ecology to support them.
Fred, if you knew even the basics about polar bears you would know that they are genetically not very different from their southern counterparts, and can interbreed with them.
Phytoplankton? Huh? They eat seals, fish, humans, human garbage scraps, each other – what has phytoplankton got to do with anything?
(http://klimazwiebel.blogspot.com/2011/11/how-did-polar-bears-survive-holocene.html):
“…there are no geological records of mass extinctions of Arctic species during the mid-Holocene. This does not say any thing important for or against the influence on climate of anthropogenic emissions of greenhouse gases, but it does say something about the resilience of ecosystems to climate change.”
WWF: “Polar bears may attempt to find alternate prey on shore, including muskox, reindeer, small rodents, waterfowl, shellfish, fish, eggs, kelp, berries and even human garbage .[…]”
… well …
Here’s the link to the bear-visits-DC story someone requested. It’s the 1st of 12 episodes in separate threads.
http://wattsupwiththat.com/2009/12/25/g-p-bear-goes-to-washington-the-true-story-of-a-freedom-loving-carnivore/
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