Dynamic fragility of oceanic coral reef ecosystems
Dynamic fragility of oceanic coral reef ecosystems
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DOI：
10.1073/pnas.0600693103
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发表时间：
2006-05-30
影响因子：
11.1
通讯作者：
Robinson, J
中科院分区：
文献类型：
--
作者：
Graham, NAJ;Wilson, SK;Robinson, J
作为已知最多样化和最多产的生态系统之一，也是最早表现出重大气候变暖影响（珊瑚白化）的生态系统之一，珊瑚礁引起了科学界对可能被证明是其致命弱点的关注，即造礁珊瑚的热敏感性。在这里，我们表明，气候变化驱动的活珊瑚的损失，并最终结构的复杂性，在塞舌尔的结果在当地的保护，大幅减少物种丰富度，减少分类的独特性，并在珊瑚礁鱼类的关键功能群的物种损失。不断恶化的物理结构对这些模式的重要性表明了漂白对珊瑚礁的长期影响，并对恢复的潜力提出了疑问。我们认为，孤立的珊瑚礁系统可能更容易受到气候变化的影响，尽管逃避了许多影响大陆珊瑚礁的压力。
As one of the most diverse and productive ecosystems known, and one of the first ecosystems to exhibit major climate-warming impacts (coral bleaching), coral reefs have drawn much scientific attention to what may prove to be their Achilles heel, the thermal sensitivity of reef-building corals. Here we show that climate change-driven loss of live coral, and ultimately structural complexity, in the Seychelles results in local extinctions, substantial reductions in species richness, reduced taxonomic distinctness, and a loss of species within key functional groups of reef fish. The importance of deteriorating physical structure to these patterns demonstrates the longer-term impacts of bleaching on reefs and raises questions over the potential for recovery. We suggest that isolated reef systems may be more susceptible to climate change, despite escaping many of the stressors impacting continental reefs.