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Maries Two Cents

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March 25, 2008

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Oh This Is Crazy

Link to Global Warming in Frogs’ Disappearance Is Challenged

In the scientific equivalent of the board game Clue, teams of biologists have been sifting spotty evidence and pointing to various culprits in the widespread vanishing of harlequin frogs.

The amphibians, of the genus Atelopus — actually toads despite their common name — once hopped in great numbers along stream banks on misty slopes from the Andes to Costa Rica. After 20 years of die-offs, they are listed as critically endangered by conservation groups and are mainly seen in zoos.

It looked as if one research team was a winner in 2006 when global warming was identified as the “trigger” in the extinctions by the authors of a much-cited paper in Nature. The researchers said they had found a clear link between unusually warm years and the vanishing of mountainside frog populations.

The “bullet,” the researchers said, appeared to be a chytrid fungus that has attacked amphibian populations in many parts of the world but thrives best in particular climate conditions.

The authors, led by J. Alan Pounds of the Monteverde Cloud Forest Preserve in Costa Rica, said, “Here we show that a recent mass extinction associated with pathogen outbreaks is tied to global warming.” The study was featured in reports last year by the Intergovernmental Panel on Climate Change.

Other researchers have been questioning that connection. Last year, two short responses in Nature questioned facets of the 2006 paper. In the journal, Dr. Pounds and his team said the new analyses in fact backed their view that “global warming contributes to the present amphibian crisis,” but avoided language saying it was “a key factor,” as they wrote in 2006.

Now, in the March 25 issue of PLoS Biology, another team argues that the die-offs of harlequins and some other amphibians reflect the spread and repeated introductions of the chytrid fungus. They question the analysis linking the disappearances to climate change. In interviews and e-mail exchanges, Dr. Pounds and the lead author of the new paper, Karen R. Lips of Southern Illinois University, disputed each other’s analysis. Experts who have researched the amphibian said neither group had enough evidence to nail down its case and warned that this normal tussle over scientific details should not distract from the reality that humans are clearly roiling biology in ways important and yet poorly understood.

“There is so much we still do not know!” David B. Wake, a biologist at the University of California, Berkeley, wrote in an e-mail note after reading the new paper. The origin of the fungus and the way it kills amphibians remain unknown, he said, and there are ample mysteries about why it breaks out in certain places and times and not others.

Dr. Pounds and Dr. Lips have both done important work, Dr. Wake said, adding, “I hope this does not turn into a ‘spitting contest,’ because we all have a lot to learn about amphibian declines.”

Ross A. Alford, a tropical biologist at James Cook University in Townsville, Australia, said such scientific tussles, while important, could be a distraction, particularly when considering the uncertain risks attending global warming.

“Arguing about whether we can or cannot already see the effects,” he said, “is like sitting in a house soaked in gasoline, having just dropped a lit match, and arguing about whether we can actually see the flames yet, while waiting to see if maybe it might go out on its own.”

Story Here
Oh Please! Where do these people live? Last year we had the biggest Frog Invasion since I've lived here in Oklahoma. You couldnt open your door without one jumping in your house. So either all the frogs have moved to Oklahoma, or this is a crock of crap!

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Blogger WomanHonorThyself said...

lol..ribit ribbit!..Marie u must come see my post about our troops~!

March 25, 2008 6:15 PM  
Blogger Daniel Ruwe said...

I really don't think the global warming people have any clue what they are talking about.

March 25, 2008 6:17 PM  
Blogger Gayle said...

I vote for a crock of crap, Marie. Absotutely! We have more frogs than I know what to do with, and I don't like cooking frogs legs. They jump all over the pan. Yucky poo!

March 25, 2008 7:16 PM  
Blogger Marie's Two Cents said...


I am coming! lol


I dont either, infact there is proof of Global "Cooling" now lol

I think they gave Al Gore the Nobel Peace prize for nothing ha!

Oh Gayle,

My mom came from Tennesee and she alway's was telling me frog legs taste like chicken lol ew.

I cant imagine eating them let alone cooking them lol

But ya never know, when we went to see our son graduate basic training we made a trip out of it and visited New Orleans on our way back since we drove all the way to Ft. Benning Georgia to begin with and got sidetracked to go to Florida to go fishing HA! Was that ever a miserable experience.

Anyway while visiting New Orleans we had real Gumbo and some fried Alligator lol

So I'm up for just about anything at this point. When living in the Country... Ya know :-)

March 25, 2008 7:31 PM  

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