Study: Penguins Signaling Oceans' Woes
Scientists Say Birds Are Seafaring Version Of Canary In Coal Mine, And Signs Are Bad
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Play CBS Video Video Penguins In Peril A biologist claims that dwindling numbers of penguins is just a crack in the ice and can mean serious climate consequences for humans. Dr. Debbye Turner reports.
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Shown in this June 30, 2000 file photo, an oil-stained penguin is seen in the water on Dassen Island, near Cape Town, South Africa. In a paper published in the July edition of the journal Bioscience conservation biologist P. Dee Boersma says that dwindling march of the penguins is signaling that the world's oceans are in trouble. (AP Photo/Obed Zilwa)
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Interactive Eye On The Environment Find out how global warming, air pollution and alternative forms of energy impact our world.
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Photo Essay A Warming Effect A behind-the-scenes look at the 60 Minutes team's trip to Patagonia, Chile and Antarctica.
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Penguins may be the tuxedo-clad version of a canary in the coal mine, with generally ailing populations from a combination of global warming, ocean oil pollution, depleted fisheries, and tourism and development, according to a new scientific review paper.
A University of Washington biologist detailed specific problems around the world with remote penguin populations, linking their decline to the overall health of southern oceans.
"Now we're seeing effects (of human caused warming and pollution) in the most faraway places in the world," said conservation biologist Dr. Dee Boersma, a Wadsworth professor and author of the paper published in the July edition of the journal Bioscience. "Many penguins we thought would be safe because they are not that close to people. And that's not true."
Scientists figure there are between 16 to 19 species of penguins. About a dozen are in some form of trouble, Boersma wrote. A few, such as the king penguin found in islands north of Antarctica, are improving in numbers, she said.
The International Union for the Conservation of Nature lists three penguin species as endangered, seven as vulnerable, which means they are "facing a high risk of extinction in the wild," and two more as "near threatened." About 15 years ago only five to seven penguin species were considered vulnerable, experts said.
And the U.S. Fish and Wildlife Service, which has already listed one penguin species on its endangered list, is studying whether it needs to add 10 more.
The largest Patagonian penguin colony in the world is at Punta Tumbo, Argentina, but the number of breeding pairs there dropped in half from about 400,000 in the late 1960s to about 200,000 in October 2006, Boersma reported. Over a century, African penguins have decreased from 1.5 million breeding pairs to 63,000.
The decline overall isn't caused by one factor, but several.
What happens to penguins, a few years down the road can happen to a lot of other species and possibly humans.
Susie Ellis, Wildlife expertFor penguins that live on the Galapagos island, El Nino weather patterns are a problem because the warmer water makes penguins travel farther for food, at times abandoning their chicks, Boersma said. At the end of the 1998 record El Nino, female penguins were only 80 percent of their normal body weight. Scientists have tied climate change to stronger El Ninos.
Oil spills regularly taint the water where penguins live off Uruguay, Argentina and Brazil and have contributed to the Punta Tumbo declines, Boersma said.
The problems may be different from place to place, but looking at the numbers for the species overall, "they do give you a clear message," Trathan said.
And this isn't just about the fate of penguins.
"What happens to penguins, a few years down the road can happen to a lot of other species and possibly humans," said longtime penguin expert Susie Ellis, now executive director of the International Rhino Foundation.
© MMVIII The Associated Press. All Rights Reserved. This material may not be published, broadcast, rewritten, or redistributed.
Best-selling author Mitch Albom on his first nonfiction work since "Tuesdays with Morrie."





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See all 25 CommentsYou two are indeed a brilliant pair. It would be funny if it weren''t so sad.
We see a problem, and have to fix it.
The fact that some might prefer truth exists does not change the truth. We as a people need to take action to fix the harm done.
Posted by Seafang
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Seafang you got to be kidding where oh where are witnessing these climatic events, Oh Please tell me.
Is it Midwest flooding? Snow in Denver in May??
The over active hurricane season they keep predicting?? The highest recorded temperatures here in the USofA were in the 1930''s must have been all those CO2''s from the what 200,000 cars in America at that time.
The object of life is not to be on the side of the majority, but to escape finding oneself in the ranks of the insane.
Marcus Aurelius
Stop the penguin stories. It indicates they were written by a liberal arts major who does not even know the difference between "C" and "F".
Well Badgersouth1; since you are so science savvy; why don''t you list just one thing that those
"Climate forecast models" have predicted that has come to pass.
Like the CO2 continues to go up, but the temperature continues to go down; did the climate forecast models predict that." Don''t give us a whole raft of examples; just one will do.
Do you know, that there isn''t even one peer reviewed scientific paper that presents measured data showing the CO2 going up accompanied by or followed by a rise in the global surface temperature. There''s plenty of data; even in Nobel Laureate Gore''s book showing rising surface temperatures followed by rising CO2 levels (because of ocean outgassing from the warmer ocean.
But there''s not even one showing the CO2 causing the temperature to change; even when the CO2 was 20 times what it it now; the temperature never got above what it is now. Just give us one.
Posted by zoe2006 at 10:38 AM : Jul 01, 2008
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Ummmmmmm, The last word in my earlier post referred specifically to you....
Posted by msay3 at 11:32 AM : Jul 01, 2008
Now, Now kids stop acting up.
Just because those cows acted funny does mean our hamburgers will not be delicious...
Posted by zoe2006
_______________________________________________________________ I''m not sure what is more pathetic - your ignorant and deplorable comment, or the realization that you can reproduce and raise kids to continue your hateful ideals.
Posted by zoe2006 at 10:38 AM : Jul 01, 2008
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Ummmmmmm, The last word in my earlier post referred specifically to you....
I asked the question for ALL OF US.
YES, I care.
Am I doing something about it? YES.
It didn''t take a story about penguins to
get me to do something.
Nor did it take high gas prices for me
to do something.
Posted by fstop100 at 08:03 AM : Jul 01, 2008
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Nature''s way of culling the herd.....Think about it..Humans are at the top of the food chain, so nature has to find other ways to keep things in balance...Like global warming, wars, diseases, and last but not least, STUPIDITY!
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