Anthropogenic climate change drives shift and shuffle in North Atlantic phytoplankton communities
Anthropogenic climate change drives shift and shuffle in North Atlantic phytoplankton communities
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DOI：
10.1073/pnas.1519080113
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发表时间：
2016-03-15
影响因子：
11.1
通讯作者：
Stock, Charles A.
中科院分区：
文献类型：
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作者：
Barton, Andrew D.;Irwin, Andrew J.;Stock, Charles A.
人为气候变化改变了许多陆地和海洋物种的生物地理和物候。海洋浮游植物群落似乎对气候变化很敏感，但了解单个物种如何对人为气候变化的反应仍然有限。在这里，使用历史环境和浮游植物观察，我们表征了87个北大西洋硅藻和鞭毛藻类分类单元的实现生态壁ni，以及平均历史（1951-2000）和未来（2051-2100）海洋条件之间物种生物地理学的项目变化。我们发现，核心范围74％的核心范围的中心位置以12.9 kmper十年（Km.dec（-1））和90％向东的速率中位数为42.7 kmmmmmmmmm.dec（-1）。极点转移比以前报道的海洋分类单元更快，并且纵向移动的占主导地位是由多个环境驱动因素的动态变化驱动的，而不是严格的极点，温度驱动的海洋栖息地的重新分布。一个世纪的气候变化显着将社区构成以盆地范围的中位数为16％，而季节性变化为46％。北大西洋浮游植物社区似乎有望进行明显的转移和洗牌，这可能会对食物网和生物地球化学周期产生广泛的影响。
Anthropogenic climate change has shifted the biogeography and phenology of many terrestrial and marine species. Marine phytoplankton communities appear sensitive to climate change, yet understanding of how individual species may respond to anthropogenic climate change remains limited. Here, using historical environmental and phytoplankton observations, we characterize the realized ecological niches for 87 North Atlantic diatom and dinoflagellate taxa and project changes in species biogeography between mean historical (1951-2000) and future (2051-2100) ocean conditions. We find that the central positions of the core range of 74% of taxa shift poleward at a median rate of 12.9 kmper decade (km.dec(-1)), and 90% of taxa shift eastward at a median rate of 42.7 km.dec(-1). The poleward shift is faster than previously reported for marine taxa, and the predominance of longitudinal shifts is driven by dynamic changes in multiple environmental drivers, rather than a strictly poleward, temperature-driven redistribution of ocean habitats. A century of climate change significantly shuffles community composition by a basin-wide median value of 16%, compared with seasonal variations of 46%. The North Atlantic phytoplankton community appears poised for marked shift and shuffle, which may have broad effects on food webs and biogeochemical cycles.