Ecological transitions in a coastal upwelling ecosystem
Ecological transitions in a coastal upwelling ecosystem
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沿海上升流生态系统的生态转变
DOI：
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发表时间：
2013
期刊：
影响因子：
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通讯作者：
A. Miller
中科院分区：
文献类型：
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作者：
Ohman;K. Barbeau;P. Franks;R. Goericke;Landry;A. Miller
南加州洋流生态系统（CCE）是一个动态的东部边界洋流生态系统，受到年际、数十年和长期时间尺度上海洋-大气变化的影响。最近的证据表明，生态系统条件的明显突变反映了物理环境的线性跟踪，而不是替代首选状态之间的振荡。时空交换是一种允许利用 CCE 中的自然空间变异性来发展预测未来时间变化所需的机械理解的方法。 （亚）中尺度锋面系统在改变养分运输速率、初级和次级生产、出口通量以及捕食者和猎物之间相遇率方面的作用是该远洋生态系统及其未来轨迹的核心问题，因为此类锋面特征的出现正在增加。 © 2013 海洋学会版权所有。版权所有。
The southern California Current Ecosystem (CCE) is a dynamic eastern boundary current ecosystem that is forced by ocean-atmosphere variability on interannual, multidecadal, and long-term secular time scales. Recent evidence suggests that apparent abrupt transitions in ecosystem conditions reflect linear tracking of the physical environment rather than oscillations between alternative preferred states. A space-for-time exchange is one approach that permits use of natural spatial variability in the CCE to develop a mechanistic understanding needed to project future temporal changes. The role of (sub)mesoscale frontal systems in altering rates of nutrient transport, primary and secondary production, export fluxes, and the rates of encounters between predators and prey is an issue central to this pelagic ecosystem and its future trajectory because the occurrence of such frontal features is increasing. © 2013 by The Oceanography Society. All rights reserved.