Decomposing multiple dimensions of stability in global change experiments
Decomposing multiple dimensions of stability in global change experiments
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DOI：
10.1111/ele.12867
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发表时间：
2018-01-01
期刊：
影响因子：
8.8
通讯作者：
Striebel, Maren
中科院分区：
文献类型：
--
作者：
Hillebrand, Helmut;Langenheder, Silke;Striebel, Maren
生态稳定性是理解生态系统从环境变化中吸收或恢复的能力的核心框架。最近的建模和概念工作表明，稳定是一个多层面的结构，包括不同的反应方面。使用两个淡水围隔实验作为案例研究，我们展示了如何响应单一扰动可以分解在不同的稳定性方面（阻力，弹性，恢复，时间稳定性）的生态系统功能和社区组成。我们发现，延长社区恢复是紧密相连的功能（生物量生产）的几乎完全恢复，而系统的物种组成的不完全恢复范围广泛，在他们的生物量相比，控制。此外，当阻力或弹性高时，恢复是最完全的，后者与恢复趋势的时间稳定性低有关。总之，没有任何一个方面的稳定性足以反映系统的整体稳定性。
Ecological stability is the central framework to understand an ecosystem's ability to absorb or recover from environmental change. Recent modelling and conceptual work suggests that stability is a multidimensional construct comprising different response aspects. Using two freshwater mesocosm experiments as case studies, we show how the response to single perturbations can be decomposed in different stability aspects (resistance, resilience, recovery, temporal stability) for both ecosystem functions and community composition. We find that extended community recovery is tightly connected to a nearly complete recovery of the function (biomass production), whereas systems with incomplete recovery of the species composition ranged widely in their biomass compared to controls. Moreover, recovery was most complete when either resistance or resilience was high, the latter associated with low temporal stability around the recovery trend. In summary, no single aspect of stability was sufficient to reflect the overall stability of the system.