In spontaneously vegetated postindustrial areas, we have limited knowledge of whether the known inhibitory tendencies of herbaceous species—Calamagrostis epigejos and Solidago spp.—vary across successional stages. Our study fills this knowledge gap to assess the inhibitory role of the invasive alien and expansive native species with known behavior from the literature. Specifically, we hypothesized: (i) there will be an inhibitory effect of these species on diversity across successional classes; (ii) the effect of a species will depend on the successional class due to abiotic requirements of plant communities in each successional class. We recorded vascular plant species and their abundance across 400 plots on post‐coal mine heaps in Upper Silesia, Poland. We classified spoil heaps into three successional classes (early‐stage; mid‐stage; late‐stage). We calculated plant community taxonomic, functional, and phylogenetic diversity and, using generalized linear mixed‐effects models, we estimated predictors of diversity indices across successional classes. While we found no limiting effects of these species on diversity indices across successional classes, the effects of a species depended on the successional stage. We found the impacts of Calamagrostis and Solidago cover on diversity indices in the mid‐successional stage. This implies that the early‐successional stage is controlled by the lottery (random) model of community assembly. However, in the mid‐successional stage, the competitive exploitation mechanism is evident, resulting in declines in diversity indices. Thus, the impacts of Calamagrostis and Solidago on diversity indices are evident in the mid‐successional stage.

中文翻译：

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Calamagrostis epigejos 和 Solidago spp. 的抑制趋势。取决于后工业化植被的演替阶段


在自发植被的后工业化地区，我们对草本物种（Calamagrostis epigejos 和 Solidago spp.）的已知抑制倾向是否随演替阶段而变化知之甚少。我们的研究填补了这一知识空白，以评估具有文献中已知行为的外来入侵和扩展性本地物种的抑制作用。具体来说，我们假设：（i） 这些物种将对演替类的多样性产生抑制作用;（ii） 由于每个演替类中植物群落的非生物要求，物种的影响将取决于演替类。我们记录了波兰上西里西亚后煤矿堆的 400 个地块的维管植物物种及其丰度。我们将弃土堆分为三个连续类别（早期、中期、晚期）。我们计算了植物群落分类学、功能和系统发育多样性，并使用广义线性混合效应模型，我们估计了跨演替类多样性指数的预测因子。虽然我们发现这些物种对演替类的多样性指数没有限制性影响，但物种的影响取决于演替阶段。我们发现了 Calamagrostis 和 Solidago 覆盖对演替中期多样性指数的影响。这意味着早期演替阶段由群落组装的彩票（随机）模型控制。然而，在演替中期，竞争性开发机制明显，导致多样性指数下降。因此，Calamagrostis 和 Solidago 对多样性指数的影响在演替中期是显而易见的。