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The Sixth Wave of Extinction Is Underway

Armageddon Sunday, August 29, 2004 . This is a SciScoop post by Ricky James

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Given the current average extinction rate of 40 species a day, it would take only 16 thousand years for the extinction of 96 percent of the contemporary biota – exactly as much as died out during the period of disastrous Permian extinction. The major reason for the oncoming calamity is destruction of plants’ and animal’s ecotope. Scientists have estimated that the species life span for contemporary mammals and birds has decreased up to 10 thousand years, i.e. it became 100 to 1000 times shorter than that of fossil forms. If the habitat continues to be destroyed at the same pace, the life span of these species will soon make only 200-400 years. There are no such estimates for the invertebrates, but they are undoubtedly affected both by the global environment and climate change, and by disappearance of local biotopes.

Death reigns on land and at sea. Thus, about 1 percent of tropical rainforests disappears annually. Up to 70 plant and animal species become extinct every day, which makes about 3 species per hour. At present, one tenth of coral reefs – zones of the highest biological diversity at shallow water – perishes; about 30 more percent will be ruined in the next decades. Corals die out mainly due to global environment and climate change, reef fish catching, water contamination and warming, hurricanes, destruction of symbiotic organisms. Any events taking place in shallow water also affects sea depths. Perhaps only “autonomous” superorganisms of deep-water gas-hydrotherm have not been touched upon by anthropogenic impact and they will evidently be able to escape consequences of the planet’s global environment and climate changes even in case of nuclear holocaust.

Nevertheless, the sixth mass extinction is oncoming. That will be the first extinction which did not happen due to natural reasons but as a result of activity of one biological species, whose quantity increases annually by 100 million individuals.

6 Responses to The Sixth Wave of Extinction Is Underway

jxliv7

August 29th, 2004 at 8:46 pm

.
…paragraph (and sentence) I would have voted yes. But there are NO real facts, just theories, to back up your tree-hugging conclusion. Sorry…

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RyanCowman

August 30th, 2004 at 1:56 am

I’d say by the time that comes around we’d have killed ourselves some other way. O well, plenty of other planets to destroy.

I <3 hippies.

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rickyjames

August 30th, 2004 at 3:42 am

If you remain unconvinced by Niles Eldredge’s supporting data in the final page one link to his article that I supplied, I suggest you look more closely at some of the links he supplies in his article, particularly this one.  

The point is not that the sixth extinction is not a political slogan by “tree-huggers” associated with the current four-year election cycle.  It is a historical process associated with the mass movement of humans out of Africa 100,000 years ago and our development of agriculture 10,000 years ago and our development of technology 1,000 years ago and our development of industry 100 years ago.  Seen from this broad perspective, humanity is as sudden and powerful and overwhelming a force to most other species on this planet as an asteroid impact was to the dinosaurs.  If you’re a dog or a cat or wheat or corn and live in a nice defined house or field or yard, your survival is pretty much assured.  Free roaming bison or mastadon?  Cod or gorilla?  Some niche organism found in a limited local ecosystem?  Watch out…there’s a new kid on the block.

And it’s not MY conclusion, it’s what was presented in the press release verbatim.  If you disagree, go find an article and publish it here on SciScoop that says species diversification is thriving.  Complete with facts, of course.

Tree-hugger.  Sheesh.    

 

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Anonymous

September 1st, 2004 at 12:51 pm

NONONO, you miss HIS point.

If your results can’t be quantified, then they’re ‘fuzzy science’. What do I mean by quantified? I mean dollar$ and cent$. I mean profit and lo$$. Good $cience make$ money. Fuzzy $cience interfere$ with making money.

It’$ a$ $impli$tic a$ that.

In ca$e it i$n’t obviou$, thi$ i$ $arcasm.

Even if you want to doubt mass extinction as a problem, it really disturbs me that there is considerable evidence that Earth’s climate is a nonlinear system, yet we continue thinking, "It’s only a few degrees, no problem worth losing profit over." By the time we hit a tip point, say stopping the North Atlantic Conveyer, it’ll be too late to take ANY action, because we’re in for the trip to the new equillibrium (sp?) climate. Perhaps we don’t need to change a thing about our carbon habits, but we DO need major efforts to understand climatic nonlinearities, and how we may induce one. We know just enough to be tantalizing – or frightening.

Back to extinction, same there. We say, "species are dying out every day, even without Man, what’s the problem?" Apparently we haven’t learned from the warning shots of Dutch Elm Blight or the Irish Potato Famine that simplified ecosystems are more vulnerable. Oh well, it get$ in the way of profit$.

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Anonymous

September 3rd, 2004 at 10:08 am

Oops? The article is about the mass extinction of most of the life on Earth and your response is ‘Oops?’ Whether or not you are serious (if serious you are obviously ignorant) its not funny. There’s something really wrong with you if find that humorous.

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Anonymous

December 15th, 2004 at 3:17 am

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