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首页> 外文期刊>Proceedings of the National Academy of Sciences of the United States of America >Fish extinctions and ecosystem functioning in tropical ecosystems
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Fish extinctions and ecosystem functioning in tropical ecosystems

机译：热带生态系统中的鱼类灭绝和生态系统功能

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The activities of modern humans have increased the extinction rate of the world's species by up to 1,000 times that observed from the fossil record. This extinction crisis has motivated the scientific community to understand the consequences of reduced biodiversity for the dynamics of ecosystems, especially those that provide basic services to human societies. In many cases, we are in the process of damaging ecosystems that we rely on intimately for our own livelihoods. Nevertheless, our understanding of how ecosystems respond to losses of biodiversity remains rudimentary, and ecologists are struggling to understand the implications of future species losses. In a recent issue of PNAS, McIntyre et al. (2) provide an ambitious attempt to understand how the cycling of limiting nutrients in species-rich aquatic ecosystems varies as species are lost from their fish communities. The results presented in that article show that the deterioration of fish biodiversity in the tropics has important consequences for the ecosystems these fish inhabit but also highlight several key points that have been underappreciated by much of biodiversity science.
机译：现代人类的活动使世界物种的灭绝速度提高了多达化石记录所观察到的1000倍。这场灭绝危机促使科学界了解生物多样性减少对生态系统动力学的影响，特别是那些为人类社会提供基本服务的生态系统。在许多情况下，我们正在破坏我们赖以生存的生态系统。然而，我们对生态系统如何应对生物多样性丧失的了解仍然是基本的，生态学家正在努力理解未来物种丧失的影响。在最近一期的PNAS中，McIntyre等人。 （2）进行了一次雄心勃勃的尝试，以了解物种丰富的水生生态系统中有限养分的循环是如何随着鱼类群落中物种的流失而变化的。该文章中提出的结果表明，热带地区鱼类生物多样性的恶化对这些鱼类所居住的生态系统产生了重要影响，但同时也突出了许多生物多样性科学尚未充分认识到的几个关键点。

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