A framework for soil food web diagnostics: extension of the nematode faunal analysis concept
A framework for soil food web diagnostics: extension of the nematode faunal analysis concept
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DOI：
10.1016/s0929-1393(01)00152-4
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发表时间：
2001-09-01
影响因子：
4.8
通讯作者：
de Goede, RGM
中科院分区：
文献类型：
--
作者：
Ferris, H;Bongers, T;de Goede, RGM
线虫是地球上数量最多的后生动物，在土壤环境中普遍存在。它们足够大，可以通过光学显微镜识别，并且足够小，可以栖息在土壤颗粒周围的水膜中。它们聚集在食物周围和食物中。它们包括在几个营养级的土壤食物网的组分类群。它们可以被归类为功能性行会，其成员对食物网富集和环境扰动和恢复的反应相似。通过线虫区系分析得出的指数提供了土壤环境扰动和土壤食物网状况的生物指标。我们通过提供一个加权系统的存在和丰富的每个功能的行会丰富和结构的食物网的指示器的重要性，以提高区系分析的分辨率。食物网结构的图形表示，线虫区系分析的基础上，允许其条件的诊断解释。简单的比率的加权丰度的代表特定的功能团提供了有用的指标的食物网结构，富集和分解渠道。(C)2001 Elsevier Science B.V.保留所有权利。
Nematodes, the earth's most abundant metazoa, are ubiquitous in the soil environment. They are sufficiently large to be identifiable by light microscopy and sufficiently small to inhabit water films surrounding soil particles. They aggregate around and in food sources. They include component taxa of the soil food web at several trophic levels. They can be categorized into functional guilds whose members respond similarly to food web enrichment and to environmental perturbation and recovery. Indices derived through nematode faunal analysis provide bioindicators for disturbance of the soil environment and condition of the soil food web. We enhance the resolution of faunal analyses by providing a weighting system for the indicator importance of the presence and abundance of each functional guild in relation to enrichment and structure of the food web. Graphical representations of food web structure, based on nematode faunal analyses, allow diagnostic interpretation of its condition. Simple ratios of the weighted abundance of representatives of specific functional guilds provide useful indicators of food web structure, enrichment, and decomposition channels. (C) 2001 Elsevier Science B.V. All rights reserved.