Using structural equation modeling to test established theory and develop novel hypotheses for the structuring forces in soil food webs
文献类型：期刊论文
| 作者 | Shao, Yuanhu; Bao, Weikai; Chen, Dima; Eisenhauer, Nico; Zhang, Weixin; Pang, Xueyong; Xu, Guoliang; Fu, Shenglei |
| 刊名 | PEDOBIOLOGIA
 |
| 出版日期 | 2015 |
| 卷号 | 58期号:4页码:137-145 |
| 关键词 | BELOW-GROUND COMMUNITIES STABLE-ISOTOPE RATIOS PLANT DIVERSITY REAL ECOSYSTEMS CARBON PATTERNS PRODUCTIVITY NEMATODES MICROARTHROPODS AGROECOSYSTEMS |
| 产权排序 | 2 |
| 通讯作者 | Fu, SL (reprint author), Chinese Acad Sci, South China Bot Garden, Key Lab Vegetat Restorat & Management Degraded Ec, 723 Xingke Rd, Guangzhou 510650, Guangdong, Peoples R China. |
| 合作状况 | 国际 |
| 英文摘要 | Understanding the structuring elements of soil food webs is a major challenge for ecologists. Given the complex nature of soil food webs, common treatment-based experiments and bivariate data analyses can only capture part of that complexity. Structural equation model (SEM) is a promising multivariate technique that may help understand direct and indirect relationships in complex soil food webs. As bacterial and fungal energy channels, as well as bottom-up-and top-down forces operate simultaneously, we used SEM to explore the complex interactions among multiple trophic levels in soil food webs. Further, SEM allowed us to test established theory and to refine and derive hypotheses regarding the structuring forces of soil food webs. We studied detritus-based soil food webs in a 55-year-old subtropical Illicium verum forest ecosystem by sampling different important soil food web components, including main soil microbial groups, soil nematodes, and soil microarthropods. The SEM results confirmed established theory by showing the central role of the fungal energy channel, and bottom-up effects were more important for the structure of the food web than top-down forces in the studied subtropical forest soil. In addition, we could derive some novel and refined hypotheses regarding important feeding links in soil food webs. For instance, we provide hypotheses on feeding preferences of different groups of soil biota and on the strength of bottom-up versus top-down effects in forest soil food webs. Overall, we highlight that SEM provides a framework to understand complex interactions and energy pathways in soil food webs in a multivariate context, test established theory, and propose novel experimental tests. (C) 2015 Elsevier GmbH. All rights reserved. |
| 学科主题 | Environmental Sciences & Ecology; Agriculture |
| 类目[WOS] | Ecology ; Soil Science |
| 收录类别 | SCI |
| 语种 | 英语 |
| 源URL | [http://210.75.237.14/handle/351003/27546]  |
| 专题 | 成都生物研究所_生态研究 |
| 推荐引用方式 GB/T 7714 | Shao, Yuanhu,Bao, Weikai,Chen, Dima,et al. Using structural equation modeling to test established theory and develop novel hypotheses for the structuring forces in soil food webs[J]. PEDOBIOLOGIA,2015,58(4):137-145. |
| APA | Shao, Yuanhu.,Bao, Weikai.,Chen, Dima.,Eisenhauer, Nico.,Zhang, Weixin.,...&Fu, Shenglei.(2015).Using structural equation modeling to test established theory and develop novel hypotheses for the structuring forces in soil food webs.PEDOBIOLOGIA,58(4),137-145. |
| MLA | Shao, Yuanhu,et al."Using structural equation modeling to test established theory and develop novel hypotheses for the structuring forces in soil food webs".PEDOBIOLOGIA 58.4(2015):137-145. |
入库方式： OAI收割
来源：成都生物研究所
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