搜搜做题作业网英语翻译In his 1979 book,The Sinking Ark,biologist Norman Myers
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英语翻译
In his 1979 book,The Sinking Ark,biologist Norman Myers estimated that an average of more than 100 human-caused extinctions occurred each day,and that one million species would have lost by the century`s end.Yet there is little evidence of anything like that number of extinctions.For example,only seven species on the endangered species list have become extinct since the list was created in 1973.
Bio-diversity is an important value,according to many scientists.Nevertheless,the supposed mass extinction rates are achieved bu multiplying unknowns by improbables to get imponderables(something that is difficult to measure or estimate).Many estimates,for instance,rely a great deal on a "species-area equation",which predicts that twice as many species will be found on 100 square miles as on ten square miles.The problem is that species are not distributed orderly,so which parts of a forest are destroyed may be as important as how much."Furthermore," says Ariel Lugo,director of the International Institute of Forestry in Puerto Rico,“biologists who predict high extinction rates underestimate the resiliency of nature."
In his 1979 book,The Sinking Ark,biologist Norman Myers estimated that an average of more than 100 human-caused extinctions occurred each day,and that one million species would have lost by the century`s end.Yet there is little evidence of anything like that number of extinctions.For example,only seven species on the endangered species list have become extinct since the list was created in 1973.
Bio-diversity is an important value,according to many scientists.Nevertheless,the supposed mass extinction rates are achieved bu multiplying unknowns by improbables to get imponderables(something that is difficult to measure or estimate).Many estimates,for instance,rely a great deal on a "species-area equation",which predicts that twice as many species will be found on 100 square miles as on ten square miles.The problem is that species are not distributed orderly,so which parts of a forest are destroyed may be as important as how much."Furthermore," says Ariel Lugo,director of the International Institute of Forestry in Puerto Rico,“biologists who predict high extinction rates underestimate the resiliency of nature."
在他1979年的《下沉的方舟》这本书里,生物学家诺曼·迈尔斯估算每日平均约有超过100种人为原因造成的物种灭绝,在【20】世纪末,将有百万种物种消失【灭亡】然而,这灭绝数量是没有证据的【原话是少有】例如,在一份1973年创建的被列入濒危物种名单上,到目前为止,仅有七种生物灭绝了.
许多科学家的表明,生物多样性是非常重要的.然而,人们所谓的大量物种灭绝率是通过这一公式得出来的：未知×不可能=无法估计.例如,许多估算的主要基础是一个 “物种 - 面积公式”,由此公式推算出在100平方英里的物种数量是10平方英里的物种数量的两倍.问题在于,物种的分布并不是均衡的,所以森林被毁坏的程度同被毁坏的区域同等重要.此外,波多黎各国际林业研究所的主人阿里尔·卢戈表明：生物学家高估了物种灭绝的速度,也低估了大自然的恢复能力.
许多科学家的表明,生物多样性是非常重要的.然而,人们所谓的大量物种灭绝率是通过这一公式得出来的：未知×不可能=无法估计.例如,许多估算的主要基础是一个 “物种 - 面积公式”,由此公式推算出在100平方英里的物种数量是10平方英里的物种数量的两倍.问题在于,物种的分布并不是均衡的,所以森林被毁坏的程度同被毁坏的区域同等重要.此外,波多黎各国际林业研究所的主人阿里尔·卢戈表明：生物学家高估了物种灭绝的速度,也低估了大自然的恢复能力.
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