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Temporal stability vs. community matrix measures of stability and the role of weak interactions.
Ecology Letters ( IF 7.6 ) Pub Date : 2020-08-18 , DOI: 10.1111/ele.13538
Amy L Downing 1 , Craig Jackson 2 , Claire Plunkett 3 , Jayne Ackerman Lockhart 1 , Shannon M Schlater 4 , Mathew A Leibold 5
Affiliation  

Relationships between different measures of stability are not well understood in part because empiricists and theoreticians tend to measure different aspects and most studies only explore a single form of stability. Using time‐series data from experimental plankton communities, we compared temporal stability typically measured by empiricists (coefficient of variation in biomass) to stability measures typically measured by theoreticians derived from the community matrix (asymptotic resilience, initial resilience and intrinsic stochastic invariability) using first‐order multivariate autoregressive models (MAR). Community matrices were also used to derive estimates of interaction strengths between plankton groups. We found no relationship between temporal stability and stability measures derived from the community matrix. Weaker interaction strengths were generally associated with higher stability for community matrix measures of stability, but were not consistently associated with higher temporal stability. Temporal stability and stability measures derived from the community matrix stability appear to represent different aspects of stability reflecting the multi‐dimensionality of stability.

中文翻译:

时间稳定性vs.社区矩阵衡量稳定性和弱相互作用的作用。

关于稳定性的不同度量之间的关系还没有得到很好的理解,部分原因是经验主义者和理论家倾向于对不同方面进行度量,并且大多数研究仅探索单一形式的稳定性。使用来自实验浮游生物群落的时间序列数据,我们比较了经验学家通常测量的时间稳定性(生物量的变化系数)与理论家通常从群落矩阵派生的稳定性度量(渐进弹性,初始弹性和内在随机不变性)进行比较。阶多元自回归模型(MAR)。社区矩阵也被用来推算浮游生物群之间的相互作用强度。我们发现时间稳定性和源自社区矩阵的稳定性测度之间没有关系。对于社区矩阵的稳定性而言,较弱的交互强度通常与较高的稳定性相关,但与较高的时间稳定性并不一致。从社区矩阵稳定性衍生的时间稳定性和稳定性测度似乎代表了稳定性的不同方面,反映了稳定性的多维性。
更新日期:2020-09-24
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