Variable response of Red Sea coral communities to recent disturbance events along a latitudinal gradient
Variable response of Red Sea coral communities to recent disturbance events along a latitudinal gradient
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红海珊瑚群落对近期扰动事件沿纬度梯度的可变响应
DOI：
10.1007/s00227-021-03984-y
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发表时间：
2021
期刊：
影响因子：
2.4
通讯作者：
J. Pandolfi
中科院分区：
文献类型：
--
作者：
N. Hammerman;Alberto Rodriguez;Timothy L. Staples;T. DeCarlo;V. Saderne;G. Roff;Nicole D. Leonard;Jian;Susann Rossbach;Michelle;Carlos M. Duarte;J. Pandolfi
珊瑚礁正经历着大量的硬珊瑚和相关的栖息地结构的急剧损失，这是由无数的地方和全球因素造成的。在这里，利用珊瑚死亡组合的U-Th放射性年龄测定，我们调查了2018年和2019年红海东部边缘沿着纬度梯度（盐步，24 ° N; Thuwal，22 ° N; Al-Lith，19 ° N; Farasan Banks，18 ° N）的珊瑚死亡率模式。在所有四个地区，原位死亡的鹿角珊瑚和Pocillopora殖民地的放射性年龄主要局限于20世纪末和世纪初。在世纪早期，珊瑚死亡率被发现与先前记录的2010年和2015年的漂白事件以及2009年在一个地点（法拉桑浅滩）爆发的棘冠海星（COTS）同步。最北方的盐步，有最高的相对百分比的活珊瑚（42 ± 4%）和活鹿角珊瑚，并可能作为一个避难所在气候变暖的情景。南部三个区域（Thuwal、Al-Lith、Farasan Banks）的海底结构主要由死珊瑚组成。最南端的调查地点Farasan Banks经历了与2009年COTS爆发和2015年漂白事件相关的珊瑚底栖结构的巨大变化，活珊瑚的相对百分比最低（6 ± 2%），主要由大块的Porites组成，没有活的Acropora或Pocilloppora。我们的研究结果突出了扰动事件对红海东部珊瑚礁的异步影响，并强调了恢复和生态系统状态的区域差异。
Coral reefs are experiencing a dramatic loss of hard coral abundance and associated habitat structure from a myriad of local and global factors. Here, utilizing U–Th radiometric age-dating of coral death assemblages, we investigated patterns of coral mortality from the eastern margin of the Red Sea along a latitudinal gradient (Yanbu, 24o N; Thuwal, 22o N; Al-Lith, 19o N; Farasan Banks, 18o N) in 2018 and 2019. In all four regions, radiometric ages of in situ dead Acropora and Pocillopora colonies were largely confined to the late twentieth and early twenty-first century. During the early twenty-first century, coral mortality was found to be synchronous with previously documented bleaching events in 2010 and 2015 and, at one site (Farasan Banks), an outbreak of crown-of-thorns starfish (COTS) in 2009. The most northern site, Yanbu, had the highest relative percentage of live coral (42 ± 4%) and of living Acropora, and may serve as a refugium under climate warming scenarios. For the three southern regions (Thuwal, Al-Lith, Farasan Banks) benthic structure was mostly comprised of dead corals. The southernmost survey site, Farasan Banks, underwent a dramatic change in coral benthic structure associated with a COTS outbreak in 2009 and a bleaching event in 2015, and had the lowest relative percentage of live coral (6 ± 2%), comprised mostly of massive Porites, with no live Acropora or Pocillopora. Our results highlight the asynchronous impact of disturbance events on eastern Red Sea coral reefs and emphasize regional differences in recovery and ecosystem state.
红海环流千年尺度变化对全新世绝缘强迫的响应
影响因子：
--
作者：
Trommer;Siccha;Rohling;van der Meer;Schouten;Hemleben;Kucera
通讯作者：
Kucera
影响因子：
16.6
作者：
Sully, S.;Burkepile, D. E.;van Woesik, R.
通讯作者：
van Woesik, R.
影响因子：
3.7
作者：
Grottoli, Andrea G.;Tchernov, Dan;Winters, Gidon
通讯作者：
Winters, Gidon