Supporting dataset and code: Succession comprises a sequence of threshold-induced community assembly processes towards multidiversity
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Using this script, data manipulations and analyses in "Hanusch et al. (2022), Succession comprises a sequence of threshold-inducedcommunity assembly processes towards multidiversity" can be reproduced Abstract: Research on successions and community assembly both address the same processes such as dispersal, species sorting, and biotic interactions but lack unifying concepts. Recent theoretical advances integrated both research lines proposing a sequence of stochastic and deterministic processes along successional gradients. Shifts in ecosystem states along successional gradients are predicted to occur abruptly once abiotic and biotic factors dominate over dispersal as main driver. Considering the multidiversity composed of five organismal groups including plants, animals, and microbes, we show that stochastic, likely dispersal-dominated, processes are replaced by rather deterministic processes such as environmental filtering and biotic interactions after around 60 years of succession in a glacier forefield. The niche-based character of later successional processes is further supported by a decline in multi-beta-diversity. Our results may update concepts of community assembly by considering multiple taxa, help to bridge the gap between research on successions and community assembly, and provide new insights into the emergence of multidiverse and complex ecosystems. Dataset includes: - Code for data analysis - Data for analysis
借助本脚本，可复现Hanusch等人（2022）在《演替包含一系列阈值诱导的群落构建过程，指向多元多样性（multidiversity）》一文中开展的数据处理与分析工作。 摘要： 演替（succession）研究与群落构建（community assembly）研究均聚焦于扩散、物种分选、生物相互作用等相同过程，但二者尚未形成统一的理论框架。近期的理论研究进展将两大研究方向加以整合，提出沿演替梯度存在一系列随机过程与确定性过程的序列模型。研究预测，当非生物与生物因子取代扩散成为主导驱动因子后，沿演替梯度的生态系统状态将发生骤然转变。本研究针对包含植物、动物与微生物在内的5个生物类群的多元多样性（multidiversity）展开分析，结果表明，在冰川前缘约60年的演替过程中，以扩散为主导的随机过程会被环境过滤、生物相互作用等确定性过程所取代。多元β多样性（beta-diversity）的下降进一步佐证了后期演替过程的生态位依赖特征。本研究结果通过纳入多类群（taxa）分析更新了群落构建的理论概念，有助于弥合演替研究与群落构建研究之间的鸿沟，并为多元多样且结构复杂的生态系统的形成机制提供了全新的研究视角。 本数据集包含： - 数据分析代码 - 分析用数据集
