Secondary production as a tool for better understanding of aquatic ecosystems
Secondary production as a tool for better understanding of aquatic ecosystems
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DOI：
10.1139/f2012-050
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发表时间：
2012-07-01
影响因子：
2.4
通讯作者：
Pardal, M. A.
中科院分区：
文献类型：
--
作者：
Dolbeth, M.;Cusson, M.;Pardal, M. A.
生态学家面临的一个主要挑战是了解生态系统在环境和人为压力下的动态和功能。应对这一挑战的一种方法是分析促进二次生产的不同组成部分（即，每单位时间内消费者吸收的有机物质或能量）以及这种生产如何受到外部因素的影响。生产研究已被认为是水生生态学的有力工具，可用于能量-生物量流动研究、营养生态学、生物资源管理以及环境压力评估。在本文中，我们总结了与二次生产估算相关的思想和技术，并讨论了如何使用这种方法来评估水生生态系统的生态变化。本文综述了用于估算次生产量的经典方法和经验模型，并提供了次生产量研究在当前影响水生生态系统的压力（如气候变化、污染和非本地入侵物种的引入）中的几个应用。我们的目标是说明使用二次生产作为评估生态系统功能的更综合工具的优势，特别是在受到强烈的人为和气候压力的情况下。
A major challenge for ecologists is understanding ecosystem dynamics and function under environmental and anthropogenic stresses. An approach for addressing this challenge is the analysis of the different components contributing to secondary production (i.e., consumer incorporation of organic matter or energy per time unit) and how this production is influenced by external factors. Production studies have been recognized as a powerful tool in aquatic ecology, with applications in energy-biomass flow studies, trophic ecology, management of biological resources, as well as assessment of environmental stress. In this paper, we summarize ideas and techniques related to the estimation of secondary production and discuss how this approach may be used to evaluate ecological change in aquatic ecosystems. We include a critical review of classical methods and empirical models to estimate secondary production and provide several applications of production studies to current stresses affecting aquatic ecosystems, such as climate change, pollution, and the introduction of non-indigenous invasive species. Our goal is to illustrate the advantages of using secondary production as a more integrative tool for the assessment of the ecosystem function, in particular when subjected to strong anthropogenic and climatic stress.