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[WiredSci]Mass Species Loss Stunts Evolution for Millions of Years

post #1 of 3
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permiangraphs.jpg
Quote:
Species abundance (black bar) before, during and after the Permian-Triassic extinction event. Species "evenness," a measure of food web stability, is in blue. Fossil records are from Africa (above box) and Russia (below box), with carbon cycle measurements in the middle.
Quote:
When searching for causes of Earth’s mass extinctions, scientists instinctively turn to geophysical calamities: erupting volcanoes, methane bursts, asteroid strikes and other obvious dooms.

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When it comes to this stuff, It really gets my attention. If you are interested in science and nature, Please give this a read.
    
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post #2 of 3
methane bursts == permafrost == timing bomb

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post #3 of 3
Less robust and varied populations of organisms are less capable of adaptation and thus a less varied system ends up being vulnerable to large die-offs? Makes sense.
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Overclock.net › Forums › Industry News › Technology and Science News › [WiredSci]Mass Species Loss Stunts Evolution for Millions of Years