Modeling food web interactions in benthic deep-sea ecosystems. A practical guide
Modeling food web interactions in benthic deep-sea ecosystems. A practical guide
复制标题
模拟深海生态系统中食物网的相互作用。
DOI：
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发表时间：
2009
期刊：
影响因子：
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通讯作者：
D. Oevelen
中科院分区：
文献类型：
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作者：
K. Soetaert;D. Oevelen
众所周知，深海底栖生物系统很难取样。与其他底栖生物系统相比，生物群体之间的许多流量无法直接测量，数据集仍然不完整和不确定。在这种情况下，数学模型通常被用来量化未测量的生物相互作用。在这里，我们展示了如何使用所谓的线性逆模型(LIM)来重建通过食物网的物质和能量流，其中测量的数量是流动总数的一小部分。这些模型将质量平衡、生理和行为约束以及饮食信息添加到稀缺的测量中。我们解释如何将这些信息源包括在LIM中，以及如何随后求解产生的模型。通过两个例子--一个非常简单的三室食物网模型和一个针对豪猪深海平原的简化的底栖碳食物网--展示了这种方法。最后，我们详细阐述了最近的发展和前景。
Deep-sea benthic systems are notoriously difficult to sample. Even more than for other benthic systems, many flows among biological groups cannot be directly measured, and data sets remain incomplete and uncertain. In such cases, mathematical models are often used to quantify unmeasured biological interactions. Here, we show how to use so-called linear inverse models (LIMs) to reconstruct material and energy flows through food webs in which the number of measurements is a fraction of the total number of flows. These models add mass balance, physiological and behavioral constraints, and diet information to the scarce measurements. We explain how these information sources can be included in LIMs, and how the resulting models can be subsequently solved. This method is demonstrated by two examples-a very simple three-compartment food web model, and a simplified benthic carbon food web for Porcupine Abyssal Plain. We conclude by elaborating on recent developments and prospects.