大部分的入侵生物都是以搭国际便车的方式抵达这里的。
Most of these invaders arrived as international hitchhikers.
对入侵生物的分布和危害防治的深入研究是十分必要的。
Therefore, a further study of the distributions and controlling of invasive species is very essential.
外来入侵生物已对世界各国的自然生态系统、农业生产及公众健康造成了严重危害。
Invasive alien species caused significant damage to natural ecosystem, agricultural production and human health throughout the world.
初生共生细菌的系统发育分析表明，B型是入侵生物型，而浙江非B型是本地生物型。
Phylogenetic analysis of primary endosymbionts based on 16S rDNA indicates that the non-B biotype is native to China while the B biotype is an invasive biotype.
同时，开展外来入侵生物的防控技术研究，以遏制已入侵物种的传播蔓延，控制其危害。
At the same time, it's necessary to carry out prevention and control technology research of invasive species, in order to curb the spread and hazard of invasived species.
文章当即引发反应——而且是141名科学家联署，其中许多是所谓“入侵生物学”领域的专家。
The response was immediate — and signed by 141 scientists, many of them specialists in the field known as invasion biology.
因为这种特别的昆虫是入侵生物，所以它们本身在当地没有天敌，没有能有效控制它们数量的天敌。
And so this particular insect, because it is an invasive, it has no native natural enemies per se. It has no natural enemies that are really very effective at controlling populations of this insect.
本研究表明，石灰氮在入侵生物福寿螺的防治方面有一定应用潜力，有望成为一种新型的“杀螺肥料”。
This study showed that calcium cyanamide had definite potential in controlling P. canaliculata invasion, being hopeful to be used as a kind of molluscicidal fertilizer in paddy field.
生物入侵已被列为当今世界最为棘手的三大环境难题之一，我国已经成为遭受外来入侵生物危害最严重的国家之一。
Biological invasion have become a serious environmental issue throughout the world. Our country has been regarded as one of the most severity on biological invasion in the world.
大约4万6千年前，在一种使用工具、高度智能的捕食者入侵后不久，澳大利亚主要的陆地生物发生了一些巨大的变化。
Something dramatic happened to Australia's dominant land creatures—somewhere around 46,000 years ago, strikingly soon after the invasion of a tool-wielding, highly intelligent predator.
许多生态学家说，这些入侵物种仅次于栖息地的丧失，是对全球生物多样性的最大威胁。
Next to habitat loss, these invasive species represent the greatest threat to biodiversity worldwide, many ecologists say.
19世纪末，狗舌草被偶然引入新西兰，像许多入侵的外来物种一样，它很快就变成了一种有害生物。
Ragwort was accidentally introduced to New Zealand in the late nineteenth century and, like so many invading foreign species, quickly became a pest.
控制和根除外来和入侵植物互花米草对生物多样性保护管理来说是重要和必要的。
To control and eradicate the exotic and invasive plant Spartina alterniflora is important and necessary for biodiversity conservation management.
现在的遗传学研究表明，这些美国南部的火蚁并不是南美原产的那种，而是来自世界各地的生物入侵。
Now genetic studies show that the southern United States, not these native lands in South America, is the source of multiple new invasions around the globe.
环保人士今天警告说，成百上千的入侵物种-从鼠类到各种疾病-正成为全球野生生物遭遇的最大威胁之一。
Hundreds of invasive species - from rats to diseases - are posing one of the greatest threats to wildlife around the world, conservationists warned today.
迄今为止，已经记录了600多种入侵物种，几乎占地中海海洋生物总数的5%。
So far, more than 600 invasive species have been counted, almost 5 per cent of the total Marine creatures in the Mediterranean.
游客对于那些危害本地野生物种的入侵物种负有一定的责任。
The tourists are partly responsible for invasive species that threaten endemic wildlife.
“之所以会对它们产生兴趣是因为我有志于研究入侵物种，意大利壁蜥能告知我们很多自然入侵方面的知识，”纽约霍夫斯特拉大学（Hofstra University）的生物学家拉塞尔·伯克（Russell Burke）写道。
“I’m interested in them because I’m interested in invasive species and what they can tell us about natural invasions, ” writes Russell Burke, a biologist at Hofstra University in New York.
然而，即使所有的外来生物入侵者被移除，当地环境也只能恢复到原住民波利尼西亚人以前所塑造的那种状态，这些原住民在库克等人到来前已定居在此至少千年。
Yet even if all the invaders were removed, it would only return the islands to the state into which the Polynesians, who inhabited them for at least 1,000 years before Cook’s arrival, had shaped them.
以下是五个为何外星高级生物不会入侵地球的主要原因？
Here are my top five reasons why an intelligent alien species will never invade our planet.
电脑病毒在复制、改编、入侵以及传播模式上几乎与生物病毒相同，“似乎”它们就是生物病毒。
Computer viruses replicated, adapt, infiltrate, and spread in patterns nearly identical to biological viruses, "as if" they were biological themselves.
即使有另外一种智能生物入侵地球，在那之前所有的人类踪迹也都已经无影无踪。
Even if another intelligent species evolved on Earth, almost all traces of humanity would have vanished long before.
但是现在哈佛大学的研究人员表示，这种蛋白的确是有不为人知的功能，它是大脑抵御细菌和其他微生物入侵系统的一部分。
But now researchers at Harvard suggest that the protein has a real and unexpected function - it may be part of the brain's normal defenses against invading bacteria and other microbes.
海洋生物入侵是由船舶压载舱中外来植物和动物的转移造成的。
Marine bio-invasions are caused by the transfer of alien plants and animals in ships’ ballast tanks.
亚当：这个培养皿中有个完整的微生物群，中间那个看起来像雪花的是外来入侵者。
Adam: This plate has a whole herd of bacteria, with one frosty-looking colony in the middle.
该项目目前在肯尼亚的另一个的争议是，是否要为提供生物燃料而种植入侵南美的有毒植物——麻疯树，这表明要在这之间取得平衡是多么困难的事。
The current controversy over another Kenyan project, to grow the poisonous and invasive South American plant jatropha for biofuel, shows just how difficult it is to strike a balance.
该项目目前在肯尼亚的另一个的争议是，是否要为提供生物燃料而种植入侵南美的有毒植物——麻疯树，这表明要在这之间取得平衡是多么困难的事。
The current controversy over another Kenyan project, to grow the poisonous and invasive South American plant jatropha for biofuel, shows just how difficult it is to strike a balance.
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