文章基本信息

标题：Ecological Transitions in a Coastal Upwelling Ecosystem
本地全文：下载
作者：Mark Ohman ; Katherine Barbeau ; Peter Franks 等
期刊名称：Oceanography - Oceanography Society
印刷版ISSN：1042-8275
出版年度：2013
卷号：26
期号：3
页码：210-219
DOI：10.5670/oceanog.2013.65
出版社：Oceanography Society
摘要：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.