物种灭绝

凯勒强调，这些调查结果并不否认，影响发生周围K-T边界，并指出，其中一个或几个可能的影响都有可能在大量物种灭绝中起作用。

Keller stressed these findings do not deny that an impact occurred around the K-T boundary , and noted that one or possibly several impacts may have had a hand in the mass extinction .

而物种灭绝的速率，也已经开始上升。

The rate of species extinction already appears to be accelerating .

人类正在导致过多物种灭绝，动物园也无济于事。

Man is exterminating too many species for zoos to be much help .

有些物种灭绝了。

Some species died out .

也是个关于在大规模的物种灭绝时代如何保护野生动物的故事。

This is the story of wildlife conservation in the age of mass   extinction .

保育组织称，目前所知已经有80个淡水鱼物种灭绝，仅去年一年就有16个。

Conservation groups say 80 species are known to have become extinct , 16 in the last year alone .

从来就不太招人喜欢的CD唱片，正一步步走向物种灭绝。

The CD , never a much-loved object , is inching toward critical endangerment .

这一研究发现对某些理论是个不小的冲击，比如X行星或涅墨西斯星之类的天体曾造成地球上的物种灭绝。

The finding deals a blow to theories that a Planet X - or Nemesis-type object may have caused periodic mass extinctions on Earth .

Worm还说，一旦海洋生物物种灭绝，海洋就变得脆弱而更难以调节全球气候变化带来的冲击。

When ocean species collapse , it makes the ocean itself weaker and less able to recover from shocks like global climate change , Worm said .

在地球演变史上，有五次大规模的物种灭绝。

There have been five mass extinctions in Earth 's history .

栖息地毁坏与动物物种灭绝关系的模拟研究

Study on the Relations Between the Animal Species Extinction and Habitat Destruction

雄性数量过多：一条通往物种灭绝的快车道？

Too Many Males : A Fast Lane to Extinction ?

它们至少经历了四次地球物种灭绝，一直活到了今天。

They have survived at least four planetary mass extinctions .

大自然母亲以及人类活动已使得很多物种灭绝。

Mother Nature and humankind have obliterated countless species .

必须在该物种灭绝之前停止捕捞。

Fishing must stop before the species is exterminated .

环境的破坏每年使成百上千种物种灭绝。

Depre dation of the environment is destroying hundreds of species each year .

对化石的研究表明，历史上曾发生过5次大规模的物种灭绝。

Studies of fossils had pointed to five great extinctions in the past .

这一趋势有助于延缓第6次大规模物种灭绝。

Exporting that trend could help stave off the gathering sixth mass extinction .

通常情况下，人类是物种灭绝的主要原因。

As is often the case , humans are the primary cause of extinction .

反思物种灭绝与生物多样性

Transposition Reflection upon Species Depopulation and Biological Diversity

这篇文章总结到厨房的时尚总是在变，但物种灭绝是永远的。

The article concludes that culinary trends come and go , but extinction is forever .

有科学家预言，到2100年，将有50%的已知物种灭绝！

Some scientists predict that by2100 there will be50 % of the known species extinction !

由于人类活动的影响，全球范围内的物种灭绝正在以前所未有的速率进行着。

Human activities are triggering some of the most rapid species extinctions in global scale .

在土地使用的变化可能导致生境和物种灭绝的损失。

Changes in land use may result in loss of habitat and extinction of species .

菌种库的建立，将野外采集到的健康、成熟、无病虫害、新鲜的子实体进行分离、制种，进行扩大繁殖，防治物种灭绝。

The construction of fungal spawn bank can be used to enlarge reproduction lest species extinction .

物种灭绝的若干种可能的序

Some potential orders of species extinction

她说非夏威夷本土的动植物引入是促使物种灭绝的主要原因。

She said a major cause of the extinctions are plants and animals not native to Hawaii .

在这种专题化的栖居状况下，人们不得不面临着诸如环境污染、物种灭绝等生态问题。

In this situation , man has to confront such problems as environmental protection and species extinction .

鹦鹉螺化石证明地球曾经历大规模物种灭绝

The Fossil of Nautilus Proves that the Earth Had ever Experienced the Extinction of Tremendous of Species

是有一些物种灭绝，如猛犸，但是遗传的多样性正在不断的增加。

Yes there is some extinction , like the Mammoth , but genetic diversity is continually increasing .