Local conditions magnify coral loss after marine heatwaves
Local conditions magnify coral loss after marine heatwaves
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DOI：
10.1126/science.abd9464
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发表时间：
2021-05-28
期刊：
影响因子：
56.9
通讯作者：
van Woesik, Robert
中科院分区：
文献类型：
--
作者：
Donovan, Mary K.;Burkepile, Deron E.;van Woesik, Robert
气候变化通过造成热应激事件威胁珊瑚礁，导致广泛的珊瑚漂白和死亡。鉴于这些大规模珊瑚死亡事件的全球性质，最近的研究认为，减缓气候变化是保护珊瑚礁的唯一途径。通过对223个地点的全球分析，我们发现当地的压力源与气候变化协同作用，杀死珊瑚。当地的因素，如大量的大型藻类或海胆放大了珊瑚白化后一年的损失。值得注意的是，日益严重的热应力和大型藻类的综合影响加剧了珊瑚的损失。我们的研究结果提供了一个乐观的前提，即有效的地方管理，以及全球减缓气候变化的努力，可以帮助珊瑚礁在人类世生存下来。
Climate change threatens coral reefs by causing heat stress events that lead to widespread coral bleaching and mortality. Given the global nature of these mass coral mortality events, recent studies argue that mitigating climate change is the only path to conserve coral reefs. Using a global analysis of 223 sites, we show that local stressors act synergistically with climate change to kill corals. Local factors such as high abundance of macroalgae or urchins magnified coral loss in the year after bleaching. Notably, the combined effects of increasing heat stress and macroalgae intensified coral loss. Our results offer an optimistic premise that effective local management, alongside global efforts to mitigate climate change, can help coral reefs survive the Anthropocene.