Regional adaptation defines sensitivity to future ocean acidification.
Regional adaptation defines sensitivity to future ocean acidification.
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DOI：
10.1038/ncomms13994
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发表时间：
2017-01-09
影响因子：
16.6
通讯作者：
Rundle SD
中科院分区：
文献类型：
--
作者：
Calosi P;Melatunan S;Turner LM;Artioli Y;Davidson RL;Byrne JJ;Viant MR;Widdicombe S;Rundle SD
已知对温度的生理反应是物种分布的主要决定因素，可以决定种群对全球变暖的敏感性。相比之下，人们对其他主要的全球变化驱动因素，如海洋酸化（OA），将如何塑造未来的物种分布知之甚少。本研究通过结合群体遗传学、生长和矿化、生理和代谢组学的实验数据，证明了腹足动物Littorina littorea群体对未来OA的敏感性是由区域适应塑造的。东北大西洋自然纬度范围边缘的种群个体在暴露于低pH时表现出更大的壳溶解，并且无法上调其代谢，因此对低海水pH最敏感。我们的研究结果表明，未来的OA水平可能会调节物种分布的温度驱动变化，从而影响未来的生物地理和海洋生态系统的功能。预计全球变暖将导致物种的地理范围发生变化，以追踪它们喜欢的温度。在这里，作者表明，普通长春花的种群对海洋酸化的敏感性不同，海洋酸化是另一个主要的全球变化驱动因素，这可能进一步限制由变暖引起的范围变化。
Physiological responses to temperature are known to be a major determinant of species distributions and can dictate the sensitivity of populations to global warming. In contrast, little is known about how other major global change drivers, such as ocean acidification (OA), will shape species distributions in the future. Here, by integrating population genetics with experimental data for growth and mineralization, physiology and metabolomics, we demonstrate that the sensitivity of populations of the gastropod Littorina littorea to future OA is shaped by regional adaptation. Individuals from populations towards the edges of the natural latitudinal range in the Northeast Atlantic exhibit greater shell dissolution and the inability to upregulate their metabolism when exposed to low pH, thus appearing most sensitive to low seawater pH. Our results suggest that future levels of OA could mediate temperature-driven shifts in species distributions, thereby influencing future biogeography and the functioning of marine ecosystems. Global warming is expected to lead to shifts in species' geographic ranges to track preferred temperatures. Here, the authors show that populations of the common periwinkle vary in their sensitivity to ocean acidification, another major global change driver, which could further restrict range shifts caused by warming.