生态系统将出现问题。
我们繁衍得如此之快，以至于人口数量威胁到地球的生态系统。
We are reproducing ourselves at such a rate that our numbers threaten the ecology of the planet.
为了保护汉江的生态系统，禁止捕鱼。
Fishing isn't allowed in order to protect the ecosystem of Hanjiang River.
生态系统稳定性的问题是复杂的。
随着美洲虎的消失，生态系统失去了平衡。
在海洋生态系统中，鲨鱼处于食物链的顶端。
Sharks are at the top of the food chain in the ocean's ecosystem.
他也写文章，希望更多的人加入保护自然生态系统的行列。
He also writes articles, hoping that more people will join in protecting natural ecosystems.
在海滩区域，不要使用对海水有害的产品，尽量保护海洋生态系统。
In beach areas, don't use products that are harmful to the sea water and try to protect the ocean's ecosystem.
当地的生态系统并不能应付这个外来物种。它正在摧毁我们的环境。
The ecosystem down there can't handle this non-native species. It's destroying the environment.
因为没有美洲虎，它们非常丰富，这导致了生态系统的不平衡。
They are very abundant because of the absence of the jaguar, which causes imbalances in the ecosystem.
早期的研究发现，它们流过很长的距离后汇入海洋，会损害沿途的生态系统。
Earlier research has found that they flow over long distances and into our oceans, hurting ecosystems along the way.
通过研究鲸落，科学家可以更好地了解海洋生态系统是如何给生命提供支持的。
By studying the whale fall scientists can better understand how sea ecosystems support life.
你听说过塑料污染海洋——每年有480至1270万吨塑料进入海洋生态系统。
You've heard that plastic is polluting the oceans—between 4.8 and 12.7 million tonnes enter ocean ecosystems every year.
“如果没有这一物种，生态系统就无法正常运转，甚至可能崩溃。”迪·马蒂诺说。
"In the absence of this species, ecosystems stop working well and may even collapse," Di Martino says.
雨林的这些不同部分共同存在，为许多动植物以及人类创造了一个生态系统。
These different parts of a rainforest exist together to create an ecosystem for many animals, plants and human beings.
海狸鼠会严重破坏生态系统。
十年前，这座岛屿的生态系统陷入混乱。
那就是拱顶石物种在生态系统中的作用。
十多年后，生态系统没有自我重建的迹象。
More than a decade later, there was no sign of the ecosystem re-building itself.
海狸怎么样——水道中包含海狸的生态系统。
这个独特的生态系统可能很快就会面临压力。
他们认为，生物多样性越丰富，生态系统就越稳定。
They believed that the greater the diversity the more stable the ecosystem.
火一旦被熄灭，草和灌木的生态系统就会很快恢复。
Once the fire is out, the grass and shrub ecosystems should return quickly.
外来害虫可以对森林生态系统产生短期和长期的影响。
Exotic insect pests can produce both short-and long-term effects on forest ecosystems.
在欧洲，变化最快、风险最大的无疑是山地生态系统。
In Europe, it is undoubtedly the mountain ecosystem which has changed most rapidly and is most at risk.
一些社区甚至讨论了将狼重新引入生态系统的可能性。
Some communities have even discussed the possibility of bringing wolves back into the ecological mix.
入侵一个地区的物种会危害生态系统、农业和人类健康。
Species that invade a territory can harm ecosystems, agriculture and human health.
谈到生态系统对现代科技冲击的反应时，人们异议纷纷。
When it comes to the reactions of the ecosystems to the onslaught of modern technology, there is no common language.
生态学家曾一度认为，物种多样性使生态系统变得稳定。
At one time, ecologists believed that species diversity made ecosystems stable.
由于人类生产和消费活动的急剧增加，生态系统正在加速恶化。
The deterioration of the ecological system is accelerating because of the dramatic increase of human production and consumption.
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