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ChuckN

Record cold spring in Canada

7 posts in this topic

Not good for bird and animal reproduction.

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Big chill in Churchill

Winter grips 90 per cent of north, migratory birds can't breedBy: Robert Alison

13/06/2009 1:00 AM | Comments: 3

It is the winter that refuses to go away in northern Manitoba and most of the eastern Arctic.

Prolonged cold snowy conditions in the Hudson Bay area are expected to obliterate the breeding season for migratory birds and most other species of wildlife this year.

According to Environment Canada, the spring of 2009 is record-late in the eastern Arctic with virtually 100 per cent snow cover from James Bay north as of June 11.

May temperatures in northern Manitoba were almost four degrees C below the long-term average of -0.7, and in early June, temperatures averaged three degrees below normal.

National Oceanic and Atmospheric Administration images confirm snow and ice blanket all of northern Manitoba, part of northern Ontario and almost all of the eastern Arctic as of June 12. U.S. arieal flight surveys confirm the eastern Arctic has no sign of spring so far.

"I have lived in Churchill since the 1950s, and this the latest spring I have ever seen here," said local resident Pat Penwarden. "The spring of 1962 was almost this bad."

Six-foot snowdrifts blocked Churchill-area roads. A thick blanket of snow, in places three- and four-feet deep, coated 90 per cent of the local taiga in northern Manitoba. Ecotourists, who normally flock to northern Manitoba every June to see birds and other wildlife, cancelled their plans this June "in droves," according to local ecotourist specialists. Snowy conditions are largely to blame.

"It is like a winter landscape," said Ruth Baker, a Michigan tourist who spent June 9 to 12 at Churchill. "I couldn't believe the snowdrifts, like mountains of snow".

Researchers confirm that the lateness of the spring of 2009 dooms local birds to a virtually complete reproductive failure.

According to Robert Jefferies, professor emeritus of botany at the University of Toronto, the last time there was a late spring in northern Manitoba, in 1983, there was a total reproductive "bust" in lesser snow geese. Most species of birds did not nest at all.

Aerial inventories of fall migrant geese from the eastern Arctic that year confirmed 0.005 per cent of the fall population comprised juvenile birds, compared to the normal figure of over 50 per cent.

According to Cornell University researchers, currently at Churchill, shorebird nesting is already three-weeks late, and has yet to start.

The first Canada goose nests were initiated on June 7, more than one month later than normal, and probably not early enough to allow goslings to mature before the fall migration flight. Canada geese are the first birds to nest in northern Manitoba. Many northern birds require more than 100 days to nest, incubate young and rear offspring to a condition suitable for fall migration.

According to Robert Rockwell of The City University of New York, who studies geese in northern Manitoba, if the geese have not begun incubating clutches of eggs before June 11, there is almost no chance that their offspring will be strong enough to endure the long southbound fall flight.

In 1983, that was the case, and 1983 was not nearly as late as 2009.

Research by Hugh Boyd, scientist emeritus at the Canadian Wildlife Service, states late Arctic springs reduce northern waterfowl production by up to 90 per cent, with very late springs having a devastating impact.

According to Vern Thomas, a University of Guelph researcher, record-late springs produce "reproductive failures" in northern geese.

"These late springs generate reproductive busts," confirmed Joe Jehl, who has studied birds in northern Manitoba since the late 1960s and recently retired from the Smithsonian Institution.

Studies at Churchill show that in late springs, female birds delay nesting, and rather than starve for lack of food, they re-absorb already-formed eggs to benefit from their nutritional content.

Nesting often does not occur under those conditions. In 2004, a late spring caused many northern Manitoba migratory birds to abandon nesting efforts and head back south in late June, more than two months early.

Recent late springs in the Hudson Bay area have been more frequent than normal: 2004, 2002, 2000 and 1997.

According to NOAA scientists, although the Arctic is warming, more frequent annual oscillations in temperature are likely to occur, often resulting in late springs.

"Such major oscillations are part of a bumpy ride toward global warming," said Thomas Karl of the National Climate Center. "For awhile at least this will be the shape of things to come."

Vegetation is also impacted upon by late Arctic springs, with green-up about three weeks late this year. Consequently, herbivorous animals have delayed breeding

"People often confuse climate with weather, and this spring is a weather phenomenon," said an Environment Canada spokesperson.

Robert Alison is a Victoria-based wildlife biologist and writer with a PhD in zoology.

http://www.winnipegfreepress.com/opinion/westview/big-chill-in-churchill-47992231.html

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Bummer for the waterfowl and the waterfowl hunters!

It was a pretty interesting article, until we get down to the part where the writer felt it necessary to include quotes of the global warming alarmists.

"According to NOAA scientists, although the Arctic is warming, more frequent annual oscillations in temperature are likely to occur, often resulting in late springs.

"Such major oscillations are part of a bumpy ride toward global warming," said Thomas Karl of the National Climate Center. "For awhile at least this will be the shape of things to come.""

Now if I read this one right, the cold, late spring is the direct result of Global Warming.

Huh?!

If its warm, its GW. If its cold, its GW. I wonder how those polar bears up in the Churchill area are surviving this cold spring? The last few years we've heard about how they are doomed by the lack of sea ice.

At least the waterfowl folks are keeping tabs on numbers and reproduction. Nothing like a little real science!

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I agree. bummer for the duck hunting this fall..thank god the Grouse #'s are up...yeah and of course they have to throw in the "Sky is Falling" stuff...then they wonder why nobody listens to them that have half a brain and has spent a little time in the natural world.

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I'm with Jackpine 100%, a cold spring is global warming? What next? You also took my polar bear jab too grin

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Things are looking pretty good in the Dakotas. A recent survey in North Dakota showed lots of water and lots of ducks.

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hmmm dakota's are great for waterfowl and canada is to cold for geese, waterfowl are smarter than we think the geese just wont go to far north they can stop short they dont have to go way up north they can hold back and stay in the southern half of canada and the upper midwest I think we should be fine since most of our birds come from the dakota's and southern portions of canada heck most of our bills and diver come from leech,winni and LOW. cant waite to shoot some honks!

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