海星纲起着重要的生态作用。
那就是拱顶石物种在生态系统中的作用。
候鸟会影响老家和冬季目的地两者的生态系统，而扰乱传统路线可能会产生意想不到的副作用。
Migrating birds affect ecosystems both at home and at their winter destinations, and disrupting the traditional routes could have unexpected side effects.
由于其中可能涉及复杂的物种相互作用，通过移除一个关键物种并观察生态系统的变化来确定该物种是有问题的。
Because complex species interactions may be involved, identifying a keystone species by removing the species and observing changes in the ecosystem is problematic.
本文综述了三营养相互作用化学生态学研究的最新进展。
This paper summarizes the recent progress in the study on chemical ecology of tritrophic interactions.
由于森林对于保持生态平衡具有重要的作用，因此对森林的破坏会对全球环境造成不可逆转的破坏。
Given forests' fundamental role in sustaining ecological balance, their damage will result in irreversible harm to the world's environment.
还有一种思想认为，一些物种和生态系可以起到的作用比想象中更多——比如热带森林，它可以调节世界气候。
It is also thought that some creatures and ecosystems are proving more useful than suspected - like tropical forest, which moderates the world's climate.
由于浮游生物是整个海洋食物链的基础，所以南大西洋在海洋生态系统中起着重要作用。
Because plankton are the base of the Marine food chain, the South Atlantic Ocean supports a rich Marine ecosystem.
这些措施在面对气候变化时对提升生计安全和生态系统的弹性会起多大作用？它们可供广泛效仿的潜力有多大？
What is their scope to increase livelihood security and ecosystem resilience vis-à-vis climate change and what is their potential for broader replication?
不可否认，动物在维持地球生态系统的微妙平衡上起到了重要作用。
It is an undeniable fact that animals play a vital role in maintaining the subtle balance of the earth's ecological system.
研究者们希望新技术能对评估入侵植物引起的生态系变化起到辅助作用。
Researchers hope the new strategy will help other efforts to assess ecosystem changes wrought by invaders.
这项研究旨在强调停止砍伐成熟林对减少陆地生态系统排放的重要作用，认为这将可能成为最重要的政策方略。
''This framework underscores the importance of eliminating harvesting of old-growth forests as perhaps the most important policy measure that can be taken to reduce emissions from land ecosystems.''
原来它们是在这里，它们在生态系统中所发挥的作用比我们意识到的更为巨大。
It turns out that they were here and they played a more important role in the ecosystem than we realised.
气候是生态系统功能的组成部分，气候条件作用于陆地和海洋生态系统的结果，可直接和间接地影响人类健康。
Climate is an integral part of ecosystem functioning and human health is impacted directly and indirectly by results of climatic conditions upon terrestrial and Marine ecosystems.
研究者们发现恢复的速度更受到生态系统种类的影响，而不是作用于生态系统上损害的强度。
The researchers found that recovery rates are influenced more by the type of ecosystem than by the magnitude of the damage inflicted upon it.
自然历史影片在传播与他们工作有关的知识上发挥着重要作用，了解周围的世界对继续努力保护我们的生态系统是非常重要的。
Natural history films play a major role in spreading knowledge of their work. And understanding the world around is vital in the continuing endeavour to preserve our ecosystem.
有机生命依靠来自喷口的化学物质过活，形成一套不需要光合作用的生态系统。
The organisms around them survive off chemicals from the vents in an ecosystem that operates without photosynthesis.
最后，公众对于保持生态平衡重要性的认识对于拯救濒临灭绝的海洋生物起到了决定性的作用。
Last but not the least, the public attachment to the importance of balance preservation would play a decisive role in saving ocean species from extinction.
里贝塞博士特别感兴趣的是生态系统中翼足类的作用，它也被称作海底蝴蝶。
Dr Riebesell is particularly interested in the ecosystem role of pteropods, also called sea butterflies.
有时生态旅游会付账单，但这也只能在游客容易到达的地点起作用。
Sometimes ecotourism pays the bills, but it works only in places that are easy for tourists to get to.
最后，让我们承认，森林凭借自身生态系统而发挥着重要作用——在我看来，它们是地球上最神奇的地方。
Finally, let us acknowledge that forests are important in their own right - for me the most magical places on Earth.
这些物种在其所处的小型生态系统中可能发挥着关键性的作用，一旦消失，即使还有许多相关的物种，也会导致整个生态系统发生改变。
Such species may be key to the survival of their small ecosystem and their loss, even among many related species, can alter an entire ecosystem.
应该注意让生态系统在气候变化中起到作用。
热带地区光照资源更丰富——因此更有利于光合作用——这一点可以解释为什么温暖的气候可以产生更多的生物(或生物量，这点为生态学家们所共知)。
That there is more sunlight-and so more opportunity for photosynthesis-at the tropics explains why warm climates create more living matter (or biomass, as it is known to ecologists).
现在，我们有很多对策方案可以通过减少不利的得失不均衡的状况，或通过与其它生态系统服务之间形成有利的协同作用，来保护或改善某些特定的生态系统服务。
Many options exist to conserve or enhance specific ecosystem services in ways that reduce negative trade-offs or that provide positive synergies with other ecosystem services.
他说明了Rails如何从一个一体化、包装的“交易”系统转移到由更加松散耦合的库一起作用的生态系统。
He demonstrates how Rails has moved from a monolithic, packaged "deal" to an ecosystem of more loosely coupled libraries that work together.
植被护坡在改善生态环境方面的作用是显著的，但植被对坡体稳定性的影响却很复杂，积极与消极的作用共存。
Slope bioengineering has significant protective effect on ecology environment, yet vegetation has complex effect on the stability of slope, it plays both positive and negative roles.
植被护坡在改善生态环境方面的作用是显著的，但植被对坡体稳定性的影响却很复杂，积极与消极的作用共存。
Slope bioengineering has significant protective effect on ecology environment, yet vegetation has complex effect on the stability of slope, it plays both positive and negative roles.
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