Resilience of invertebrate communities in grassland soils

草原土壤无脊椎动物群落的恢复力

• 批准号: 413730012
• 负责人: Professor Dr. Volkmar Wolters
• 金额: --
• 依托单位: ArbeitsgruppeTierökologie
• 依托单位国家: 德国
• 项目类别: Infrastructure Priority Programmes
• 财政年份: 2018
• 资助国家: 德国
• 起止时间: 2017-12-31 至 2022-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/413730012?language=en
• 关键词: Resilience; invertebrate; communities; grassland; soils

RESOILIENCE builds on the emerging issue of resilience as an indispensable prerequisite for developing sustainable management strategies. The ultimate goal is to fill the knowledge gap regarding the resilience and resistance of soil invertebrate communities at the highest level of basic research. Major aims are (1) to explore innovative routes toward a mechanistic understanding of the structural and functional response of edaphic communities to management disturbances, and (2) to obtain a deep insight into the processes controlling the assembly of invertebrate communities in variable soil environments. Focusing on the range of management intensities occurring at the grasslands of the DFG Biodiversity Exploratories, we want to exploit the unique opportunity of a large-scale long-term approach by comparing our samples taken during our BE work in 2009 and 2011 to samples newly collected in 2018. Sophisticated field and microcosm experiments, which single out crucial aspects of community recovery from soil disturbance, complement this approach by are aiming at specifying, extending and validating the results. Major elements of the innovative RESOILIENCE conceptual framework are trait-based assembly analyses, temporal dimensions of disturbance induced assembly processes (‘successional assembly’), and transient population dynamics. Parameters determined include all relevant taxa of the soil fauna (mostly at the species level), food web structure, consumer isotopic signatures, soil processes (e.g. GHG release, C and N turnover) as well as microbial diversity and biomass (PLFA). An inherent objective is to use the novel approach of RESOILIENCE for refining statistical tools and developing advanced metrics to analyse and quantify the recovery of soil biota.

RESOILENCE的基础是新出现的复原力问题，这是制定可持续管理战略不可或缺的先决条件。最终目标是在基础研究的最高水平上填补有关土壤无脊椎动物群落的恢复力和抵抗力的知识空白。主要目的是（1）探索创新的途径，以机械的理解土壤群落的结构和功能的管理干扰，（2）获得深入了解的过程中控制组装的无脊椎动物群落在可变的土壤环境。重点关注DFG生物多样性勘探站草原上发生的管理强度范围，我们希望通过将2009年和2011年BE工作期间采集的样本与2018年新采集的样本进行比较，利用大规模长期方法的独特机会。复杂的实地和微观实验，从土壤扰动中挑出社区恢复的关键方面，补充这种方法，旨在具体化，扩展和验证结果。创新的RESOILENCE概念框架的主要内容是基于特征的组装分析，时间维度的干扰诱导组装过程（“演替组装”），和短暂的人口动态。确定的参数包括土壤动物的所有相关类群（主要是在物种水平上），食物网结构，消费者同位素特征，土壤过程（如温室气体释放，C和N的周转）以及微生物多样性和生物量（PLFA）。一个内在的目标是使用RESOILENCE的新方法来改进统计工具和开发先进的指标，以分析和量化土壤生物群的恢复。