Modeling the coupling of ocean ecology and biogeochemistry
Modeling the coupling of ocean ecology and biogeochemistry
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DOI：
10.1029/2008gb003405
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发表时间：
2009-11-03
影响因子：
5.2
通讯作者：
Bragg, J. G.
中科院分区：
文献类型：
--
作者：
Dutkiewicz, S.;Follows, M. J.;Bragg, J. G.
我们研究了生态学和地球化学循环之间的相互作用，在全球三维海洋模型的背景下，自组装浮游植物群落出现从一个广泛的潜在可行的细胞类型。我们考虑的复杂模型的解决方案的资源竞争理论。新兴的社区结构和生态制度在不同的物理环境中的模式海洋：强烈的季节性，高营养的地区占主导地位的快速增长的水华专家，而稳定的，低季节性的地区占主导地位的生物，可以在低营养浓度和适合贫营养条件下生长。在后者的地区，资源竞争理论的框架提供了一个有用的定性和定量的诊断工具，以解释模式生物之间的竞争结果，他们的资源环境的调节，以及系统的敏感性细胞的关键生理特征的变化。
We examine the interplay between ecology and biogeochemical cycles in the context of a global three-dimensional ocean model where self-assembling phytoplankton communities emerge from a wide set of potentially viable cell types. We consider the complex model solutions in the light of resource competition theory. The emergent community structures and ecological regimes vary across different physical environments in the model ocean: Strongly seasonal, high-nutrient regions are dominated by fast growing bloom specialists, while stable, low-seasonality regions are dominated by organisms that can grow at low nutrient concentrations and are suited to oligotrophic conditions. In the latter regions, the framework of resource competition theory provides a useful qualitative and quantitative diagnostic tool with which to interpret the outcome of competition between model organisms, their regulation of the resource environment, and the sensitivity of the system to changes in key physiological characteristics of the cells.