Global Trends in Marine Plankton Diversity across Kingdoms of Life
Global Trends in Marine Plankton Diversity across Kingdoms of Life
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DOI：
10.1016/j.cell.2019.10.008
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发表时间：
2019-11-14
期刊：
影响因子：
64.5
通讯作者：
Zinger, Lucie
中科院分区：
文献类型：
--
作者：
Ibarbalz, Federico M.;Henry, Nicolas;Zinger, Lucie
海洋是无数小型浮游生物的家园，它们支撑着海洋生态系统的功能。然而，它们多样性的空间格局和潜在驱动因素仍然知之甚少，因此无法预测它们对全球变化的反应。在这里，我们利用塔拉海洋的分子和成像数据研究了古细菌、细菌、真核生物和主要病毒Glades的纬度梯度和浮游生物多样性的全球预测因子。我们发现，大多数浮游生物种群的多样性向两极下降，主要是由于海洋温度下降。对未来的预测表明，到21世纪末，海洋表面的严重变暖可能导致温带和极地地区大多数浮游生物群的多样性热带化。这些变化可能对海洋生态系统的功能和服务产生多重影响，预计在碳封存、渔业和海洋养护等关键领域尤其重要。
The ocean is home to myriad small planktonic organisms that underpin the functioning of marine ecosystems. However, their spatial patterns of diversity and the underlying drivers remain poorly known, precluding projections of their responses to global changes. Here we investigate the latitudinal gradients and global predictors of plankton diversity across archaea, bacteria, eukaryotes, and major virus Glades using both molecular and imaging data from Tara Oceans. We show a decline of diversity for most planktonic groups toward the poles, mainly driven by decreasing ocean temperatures. Projections into the future suggest that severe warming of the surface ocean by the end of the 21st century could lead to tropicalization of the diversity of most planktonic groups in temperate and polar regions. These changes may have multiple consequences for marine ecosystem functioning and services and are expected to be particularly significant in key areas for carbon sequestration, fisheries marine conservation.