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The planet's current biodiversity, the product of 3.5 billion years of evolutionary trial and error, is the highest in the history of life. But it may be reaching a tipping point.
In a new review of scientific literature and analysis of data published in Science, an international team of scientists cautions that the loss and decline of animals is contributing to what appears to be the early days of the planet's sixth mass biological extinction event.
Since 1500, more than 320 terrestrial vertebrates have become extinct. Populations of the remaining species show a 25 percent average decline in abundance. The situation is similarly dire for invertebrate animal life.
And while previous extinctions have been driven by natural planetary transformations or catastrophic asteroid strikes, the current die-off can be associated to human activity, a situation that the lead author Rodolfo Dirzo, a professor of biology at Stanford, designates an era of "Anthropocene defaunation."
Across vertebrates, 16 to 33 percent of all species are estimated to be globally threatened or endangered. Large animals -- described as megafauna and including elephants, rhinoceroses, polar bears and countless other species worldwide -- face the highest rate of decline, a trend that matches previous extinction events.
Just what we need, another apocalyptic wacko thread.
Ah a good post from you Matthew! It's refreshing! Humans create an impact on their environment that is unprecedented in all of known Earth history. It's why we've become the Apex species on the planet. Sadly the dumber member's of our species denies that.
The Earth will be able to support it's inhabitants for a while longer. I very much doubt we'll give a damn about trying to conserve anything so we'll have to adapt with technology or some other way. I think we'll make it.
Says one of the apocalyptic wackos.Just what we need, another apocalyptic wacko thread.
Not apocalyptic man. A little informative though
Says one of the apocalyptic wackos.Just what we need, another apocalyptic wacko thread.
Not apocalyptic man. A little informative though
Biologist warn of early stages of Earth's sixth mass extinction event
Biologist warn of early stages of Earth's sixth mass extinction event -- ScienceDaily
The planet's current biodiversity, the product of 3.5 billion years of evolutionary trial and error, is the highest in the history of life. But it may be reaching a tipping point.
In a new review of scientific literature and analysis of data published in Science, an international team of scientists cautions that the loss and decline of animals is contributing to what appears to be the early days of the planet's sixth mass biological extinction event.
Since 1500, more than 320 terrestrial vertebrates have become extinct. Populations of the remaining species show a 25 percent average decline in abundance. The situation is similarly dire for invertebrate animal life.
And while previous extinctions have been driven by natural planetary transformations or catastrophic asteroid strikes, the current die-off can be associated to human activity, a situation that the lead author Rodolfo Dirzo, a professor of biology at Stanford, designates an era of "Anthropocene defaunation."
Across vertebrates, 16 to 33 percent of all species are estimated to be globally threatened or endangered. Large animals -- described as megafauna and including elephants, rhinoceroses, polar bears and countless other species worldwide -- face the highest rate of decline, a trend that matches previous extinction events.
Why not use dna to bring them back? We could bring back every one of these 320 creatures!
Grant money does not grow on trees.
Someone has to pay for an old Biology professors graduate student assistance program.
we're wiping out species that we haven't even discovered yet. Thanks deniers!
we're wiping out species that we haven't even discovered yet. Thanks deniers!
How can we know we are wiping something out that we do not know exists?
Logic flaw alert!
.
Biologist warn of early stages of Earth's sixth mass extinction event
Biologist warn of early stages of Earth's sixth mass extinction event -- ScienceDaily
The planet's current biodiversity, the product of 3.5 billion years of evolutionary trial and error, is the highest in the history of life. But it may be reaching a tipping point.
In a new review of scientific literature and analysis of data published in Science, an international team of scientists cautions that the loss and decline of animals is contributing to what appears to be the early days of the planet's sixth mass biological extinction event.
Since 1500, more than 320 terrestrial vertebrates have become extinct. Populations of the remaining species show a 25 percent average decline in abundance. The situation is similarly dire for invertebrate animal life.
And while previous extinctions have been driven by natural planetary transformations or catastrophic asteroid strikes, the current die-off can be associated to human activity, a situation that the lead author Rodolfo Dirzo, a professor of biology at Stanford, designates an era of "Anthropocene defaunation."
Across vertebrates, 16 to 33 percent of all species are estimated to be globally threatened or endangered. Large animals -- described as megafauna and including elephants, rhinoceroses, polar bears and countless other species worldwide -- face the highest rate of decline, a trend that matches previous extinction events.
Why not use dna to bring them back? We could bring back every one of these 320 creatures!
