研究人员表明有弹性的珊瑚礁(比卫星预测的高海洋温度更少的空中白化)显示出低的共生变化。在2016年之前，耐热环境共生体在约98%的样品中普遍存在，含量适中(样品中占9%至40%)。在珊瑚中，耐热共生体的丰度较低(0 ~ 7.3%)，仅在少数群体(13 ~ 27%)中存在。白化之后，珊瑚物种的环境多样性增加了一倍(包括耐热共生体)。群落是动态的(Acropora millepora)和保守的(Acropora hyacinththem和Acropora tenuis)，包括共生群落的周转和再分配。白化后发生共生重组，但这是一个分类单元特有的生态机会。
据介绍，共生造礁珊瑚在全球变暖的条件下生存，需要快速的适应环境。在2016年前后三种珊瑚物种大规模白化以及在大堡礁约900公里的环境中自由生存，约有1643个共生体群落比较了累积热应力的影响。
附：英文原文
Title: Symbioses are restructured by repeated mass coral bleaching
Author: Kate M. Quigley, Blake Ramsby, Patrick Laffy, Jessica Harris, Veronique J. L. Mocellin, Line K. Bay
Issue&Volume: 2022-12-07
Abstract: Survival of symbiotic reef-building corals under global warming requires rapid acclimation or adaptation. The impact of accumulated heat stress was compared across 1643 symbiont communities before and after the 2016 mass bleaching in three coral species and free-living in the environment across ~900 kilometers of the Great Barrier Reef. Resilient reefs (less aerial bleaching than predicted from high satellite sea temperatures) showed low variation in symbioses. Before 2016, heat-tolerant environmental symbionts were common in ~98% of samples and moderately abundant (9 to 40% in samples). In corals, heat-tolerant symbionts were at low abundances (0 to 7.3%) but only in a minority (13 to 27%) of colonies. Following bleaching, environmental diversity doubled (including heat-tolerant symbionts) and increased in one coral species. Communities were dynamic (Acropora millepora) and conserved (Acropora hyacinthus and Acropora tenuis), including symbiont community turnover and redistribution. Symbiotic restructuring after bleaching occurs but is a taxon-specific ecological opportunity.
DOI: abq8349
Source: https://www.science.org/doi/10.1126/sciadv.abq8349