Contrasting patterns of coral bleaching susceptibility in 2010 suggest an adaptive response to thermal stress.
Contrasting patterns of coral bleaching susceptibility in 2010 suggest an adaptive response to thermal stress.
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DOI：
10.1371/journal.pone.0033353
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发表时间：
2012
期刊：
影响因子：
3.7
通讯作者：
Chou LM
中科院分区：
文献类型：
--
作者：
Guest JR;Baird AH;Maynard JA;Muttaqin E;Edwards AJ;Campbell SJ;Yewdall K;Affendi YA;Chou LM
珊瑚漂白事件的严重程度各不相同，然而，到目前为止，珊瑚分类群之间的漂白敏感性的层次结构在广泛的地理范围和漂白事件之间是一致的。在这里，我们研究了在2010年热诱导的，大规模的漂白事件在东南亚的石珊瑚分类群和位置之间的耐热性的空间和时间变化的程度。调查估计珊瑚属的漂白和死亡指数进行了对比的热和漂白历史在三个地点。尽管2010年各地点的热应力大小相似，但漂白敏感性的模式存在显著的对比。珊瑚分类群内和不同地点的漂白敏感性比较显示，具有相似热历史的地点之间没有显著差异，但具有对比热历史的地点之间存在显著差异（Friedman = 34.97; p<0.001）。 在1998年发生白化的地区，白化的严重程度要低得多，这些地区的历史温度变化更大，变暖速度更低。值得注意的是，鹿角珊瑚和Pocilloppora，分类群是典型的高度易感，虽然在Pulau Weh（苏门答腊，印度尼西亚）最易感，其中分别有94%和87%的菌落死亡，是在新加坡最不易感，其中只有5%和12%的菌落死亡。这里记录的珊瑚属之间的易感性模式是前所未有的。对这些结果的一个粗略解释是，在1998年最后一次重大变暖事件中漂白的珊瑚种群已经适应和/或适应了热应力。这些数据也支持这样一种假设，即在温度变化较大的地区，珊瑚比在变化较小的环境中的珊瑚更能抵抗热应力。
Coral bleaching events vary in severity, however, to date, the hierarchy of susceptibility to bleaching among coral taxa has been consistent over a broad geographic range and among bleaching episodes. Here we examine the extent of spatial and temporal variation in thermal tolerance among scleractinian coral taxa and between locations during the 2010 thermally induced, large-scale bleaching event in South East Asia. Surveys to estimate the bleaching and mortality indices of coral genera were carried out at three locations with contrasting thermal and bleaching histories. Despite the magnitude of thermal stress being similar among locations in 2010, there was a remarkable contrast in the patterns of bleaching susceptibility. Comparisons of bleaching susceptibility within coral taxa and among locations revealed no significant differences between locations with similar thermal histories, but significant differences between locations with contrasting thermal histories (Friedman = 34.97; p<0.001). Bleaching was much less severe at locations that bleached during 1998, that had greater historical temperature variability and lower rates of warming. Remarkably, Acropora and Pocillopora, taxa that are typically highly susceptible, although among the most susceptible in Pulau Weh (Sumatra, Indonesia) where respectively, 94% and 87% of colonies died, were among the least susceptible in Singapore, where only 5% and 12% of colonies died. The pattern of susceptibility among coral genera documented here is unprecedented. A parsimonious explanation for these results is that coral populations that bleached during the last major warming event in 1998 have adapted and/or acclimatised to thermal stress. These data also lend support to the hypothesis that corals in regions subject to more variable temperature regimes are more resistant to thermal stress than those in less variable environments.
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影响因子：
3.7
作者：
Eakin CM;Morgan JA;Heron SF;Smith TB;Liu G;Alvarez-Filip L;Baca B;Bartels E;Bastidas C;Bouchon C;Brandt M;Bruckner AW;Bunkley-Williams L;Cameron A;Causey BD;Chiappone M;Christensen TR;Crabbe MJ;Day O;de la Guardia E;Díaz-Pulido G;DiResta D;Gil-Agudelo DL;Gilliam DS;Ginsburg RN;Gore S;Guzmán HM;Hendee JC;Hernández-Delgado EA;Husain E;Jeffrey CF;Jones RJ;Jordán-Dahlgren E;Kaufman LS;Kline DI;Kramer PA;Lang JC;Lirman D;Mallela J;Manfrino C;Maréchal JP;Marks K;Mihaly J;Miller WJ;Mueller EM;Muller EM;Orozco Toro CA;Oxenford HA;Ponce-Taylor D;Quinn N;Ritchie KB;Rodríguez S;Ramírez AR;Romano S;Samhouri JF;Sánchez JA;Schmahl GP;Shank BV;Skirving WJ;Steiner SC;Villamizar E;Walsh SM;Walter C;Weil E;Williams EH;Roberson KW;Yusuf Y
通讯作者：
Yusuf Y
DOI：
10.1007/978-90-481-8681-5_16
发表时间：
2010-01-01
期刊：
OCEANOGRAPHY FROM SPACE: REVISITED
影响因子：
--
作者：
Casey, Kenneth S.;Brandon, Tess B.;Evans, Robert
通讯作者：
Evans, Robert
影响因子：
11.6
作者：
Donner, SD;Skirving, WJ;Hoegh-Guldberg, O
通讯作者：
Hoegh-Guldberg, O
影响因子：
2.4
作者：
Maynard, J. A.;Anthony, K. R. N.;Masiri, I.
通讯作者：
Masiri, I.
DOI：
10.1098/rspb.2006.3567
发表时间：
2006-09-22
影响因子：
4.7
作者：
Berkelmans, Ray;van Oppen, Madeleine J. H.
通讯作者：
van Oppen, Madeleine J. H.