Application of nitrogen stable isotope analysis in size-based marine food web and macroecological research
Application of nitrogen stable isotope analysis in size-based marine food web and macroecological research
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DOI：
10.1002/rcm.3497
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发表时间：
2008-06-01
影响因子：
2
通讯作者：
Polunin, Nicholas V. C.
中科院分区：
文献类型：
--
作者：
Jennings, Simon;Barnes, Carolyn;Polunin, Nicholas V. C.
人类和环境压力相互作用，影响海洋食物网的结构和动态。为了描述和预测这些压力的影响，理论上的进步需要得到验证基本模型和假设的能力的支持。在这里，我们回顾了氮稳定同位素分析在海洋食物网和宏观生态学研究中的最新应用，重点介绍了在基于尺寸的模型的开发和应用中重新引起兴趣的工作。氮稳定同位素数据已被用来估计内部和种间的变化，营养水平，捕食者-猎物的大小比例，转移效率，食物链长度，捕食者和猎物物种多样性和能源利用的动态之间的关系。其中许多估计有助于食物网和生态系统模型的开发、测试和参数化，其中一些已被用于建立评估人类影响规模的基线。对结果的解释取决于假定的分馏，但当得到敏感性分析和实验验证的支持时，氮稳定同位素数据为海洋群落和生态系统的结构提供了宝贵的见解。版权所有（C）2008约翰威利父子有限公司
Interacting human and environmental pressures influence the structure and dynamics of marine food webs. To describe and predict the effects of these pressures, theoretical advances need to be supported by a capacity to validate the underlying models and assumptions. Here, we review recent applications of nitrogen stable isotope analysis in marine food web and macroecological research, with a focus on work that has paralleled a resurgence of interest in the development and application of size-based models. Nitrogen stable isotope data have been used to estimate intra- and inter-specific variation in trophic level, predator-prey size ratios, transfer efficiency, food chain length, relationships between predator and prey species diversity and the dynamics of energy use. Many of these estimates have contributed to the development, testing and parameterisation of food web and ecosystem models, some of which have been used to establish baselines for assessing the scale of human impacts. The interpretation of results depends on assumed fractionation but, when supported by sensitivity analyses and experimental validation, nitrogen stable isotope data provide valuable insights into the structuring of marine communities and ecosystems. Copyright (C) 2008 John Wiley & Sons, Ltd.