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研究指出地球面臨第6次物種大滅絕

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Published on Mar 17, 2011

Smtv 11/03/08
在《自然》(Nature)期刊發表的最新研究裡,巴西聖保羅大學(University of Sao Paulo)、美國加大柏克萊分校(University of California, Berkeley)和美國北卡國家演化綜合研究中心(National Evolutionary Synthesis Center in North Carolina)多位科學家,評估目前被國際自然保育聯盟(International Union for Conservation of Nature)列為嚴重瀕絕和備受威脅的物種,以目前瀕絕物種的情況與過去5億4千萬年內5次大滅絕時喪失逾75%物種的情況相比較,發現雖然地球目前消失物種的百分比比前5次大滅絕少,但科學家表示目前物種消失的速率是正常演化速率的1千倍,因此在3個世紀內恐將爆發第6次物種大滅絕。該報告作者之1,美國加州大學巴諾斯基教授(Professor Anthony Barnosky)表示若現在我們立即行動,解決棲地喪失、疾病、全球暖化和其他人為因素,那還來得及挽救。他說:「如果人類不想造成其他物種大滅絕,就必須投入資源並立法加以保護。
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Study raises concern for the Earth's 6th mass extinction.
In a new study published in the journal Nature, several scientists from the University of California, Berkeley, USA; the University of Sao Paulo in Brazil and the National Evolutionary Synthesis Center in North Carolina, USA evaluated animals currently listed as "critically endangered," "endangered" and "threatened" by the International Union for Conservation of Nature.

They compared current endangered species' conditions with five previous extinction periods over the past 540 million years, when at least 75% of all animal species disappeared.

Their conclusions included the observation that while the Earth has currently lost a relatively small percentage of species, the rate at which they are disappearing now, which some scientists have said is 1,000 times faster than the normal pace of evolution, could set off a sixth mass extinction in as little as three centuries.

At the same time, co-author Professor Anthony Barnosky of the University of California, Berkeley said that it is not too late if we act now to resolve habitat loss, disease, global warming and other largely human-caused issues.

He stated, "It's very important to devote resources and legislation toward species conservation if we don't want to be the species whose activity caused a mass extinction."

Thank you Professor Barnosky and other international colleagues for your extensive work in showing our potential for an irreversible tragedy perishing that would ultimately affect our own survival. May we act swiftly to preserve the lives of all beings on the planet.

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