Temporal dynamics of Grime's CSR strategies in plant communities during 60 years of succession,Ecology Letters

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Temporal dynamics of Grime's CSR strategies in plant communities during 60 years of succession
Ecology Letters ( IF 7.6 ) Pub Date : 2024-05-30 , DOI: 10.1111/ele.14446
Yan-Song Zhang ₁ , Scott J Meiners ₂ , Yani Meng ₁ , Qi Yao ₁ , Kun Guo ₁ , Wen-Yong Guo ₁ , Shao-Peng Li ₁

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Grime's competitive, stress‐tolerant, ruderal (CSR) theory predicts a shift in plant communities from ruderal to stress‐tolerant strategies during secondary succession. However, this fundamental tenet lacks empirical validation using long‐term continuous successional data. Utilizing a 60‐year longitudinal data of old‐field succession, we investigated the community‐level dynamics of plant strategies over time. Our findings reveal that while plant communities generally transitioned from ruderal to stress‐tolerant strategies during succession, initial abandonment conditions crucially shaped early successional strategies, leading to varied strategy trajectories across different fields. Furthermore, we found a notable divergence in the CSR strategies of alien and native species over succession. Initially, alien and native species exhibited similar ruderal strategies, but in later stages, alien species exhibited higher ruderal and lower stress tolerance compared to native species. Overall, our findings underscore the applicability of Grime's predictions regarding temporal shifts in CSR strategies depending on both initial community conditions and species origin.

中文翻译：

Grime 植物群落企业社会责任战略 60 年来的时间动态

Grime 的竞争性、耐逆性、粗鲁（CSR）理论预测，植物群落在次生演替过程中会从粗鲁策略转向耐逆策略。然而，这一基本原则缺乏使用长期连续演替数据的实证验证。利用 60 年的老田演替纵向数据，我们研究了植物策略随时间的群落水平动态。我们的研究结果表明，虽然植物群落在演替过程中通常从粗鲁策略转变为耐胁迫策略，但最初的废弃条件至关重要地塑造了早期演替策略，导致不同领域的不同策略轨迹。此外，我们发现外来物种和本地物种在演替方面的企业社会责任策略存在显着差异。最初，外来物种和本地物种表现出相似的粗暴策略，但在后期，与本地物种相比，外来物种表现出更高的粗暴策略和更低的胁迫耐受性。总体而言，我们的研究结果强调了 Grime 关于企业社会责任策略时间变化的预测的适用性，这取决于初始群落条件和物种起源。

更新日期：2024-05-30

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