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首页> 外文期刊>Estuarine Coastal and Shelf Science >Diversity of coastal phytoplankton assemblages Cross - ecosystem comparison
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Diversity of coastal phytoplankton assemblages Cross - ecosystem comparison

机译：沿海浮游植物的多样性跨生态系统比较

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Phytoplankton plays a massively important role in the oceanic carbon cycling and biogeochemistry. Despite its far-reaching importance, regional cross-ecosystem comparisons remain incomplete because the data sets are often scattered and fragmented. Here we compiled and harmonized decadal scale phytoplankton monitoring data sets from seven geographic regions of the world ocean, covering ca 45 thousand quantitative samples from European, North- and South American coastal waters. Nonmetric multidimensional scaling revealed clear regional clustering of sampling locations, both when using compositional relatedness or phylogenetic turnover of communities. Compositional and phylogenetic relatedness of phytoplankton communities had a strong correlation with salinity and temperature gradients (R-2 = 0.6-0.8). The regional taxon richness (S) varied by almost an order of magnitude, and scaled with the ecosystem size (A) according to a power law: S = 62 x A(0.35). The compositional turnover of species (beta-diversity) was also positively related to ecosystem size, but also to mean regional salinity. (C) 2015 Elsevier Ltd. All rights reserved.
机译：浮游植物在海洋碳循环和生物地球化学中起着极其重要的作用。尽管它具有深远的重要性，但是区域跨生态系统的比较仍然不完整，因为数据集通常是分散且分散的。在这里，我们收集并协调了来自世界海洋七个地理区域的十年尺度浮游植物监测数据集，涵盖了来自欧洲，北美和南美沿海水域的约4.5万个定量样本。使用组成相关性或社区的系统发生更新时，非度量多维标度揭示了采样位置的清晰区域聚类。浮游植物群落的组成和系统发育相关性与盐度和温度梯度有很强的相关性（R-2 = 0.6-0.8）。区域分类单元丰富度（S）几乎变化了一个数量级，并根据幂定律随生态系统规模（A）缩放：S = 62 x A（0.35）。物种的成分转换（β-多样性）也与生态系统规模成正相关，但也与区域盐度成正比。 （C）2015 Elsevier Ltd.保留所有权利。

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