The ecology and species diversity of ephemeral wetland vegetation have been fairly well studied, but the biology of its characteristic species has rarely been investigated holistically. Here we combine previous results on the genetic diversity of a suitable model species (the diploid Cyperus fuscus) with new data on its historical and recent occurrence, its ecological and climatic niche, and the associated vegetation. Analysis of phytosociological relevés from Central Europe revealed a broad ecological niche of C. fuscus with an optimum in the Isoëto-Nanojuncetea class, extending to several other vegetation types. Overall species composition in the relevés highlight C. fuscus as a potential indicator of habitat conditions suitable for a range of other threatened taxa. Analysis of historical records of C. fuscus from the Czech Republic showed an increasing trend in the number of localities since the 1990s. It seems that recent climate warming allows the thermophilous C. fuscus to expand its range into colder regions. Isoëto-Nanojuncetea and Bidentetea species are well represented in the soil seed bank in both riverine and anthropogenic habitats of C. fuscus. Vegetation diversity has a weak negative effect and anthropogenic (compared to riverine) habitats have a strong negative effect on genetic diversity in this species.

中文翻译：

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中欧香附子的生态与遗传-临时湿地植物研究与保护的模型

短暂湿地植被的生态学和物种多样性已经得到了很好的研究，但很少对其特征物种的生物学进行整体研究。在这里，我们将关于合适模型物种（二倍体莎草）的遗传多样性的先前结果与有关其历史和近期发生，其生态和气候生态位以及相关植被的新数据结合在一起。中欧植物社会学样地分析揭示了广泛的生态位C.鲇与在Isoëto-Nanojuncetea类最佳，延伸到其他几种植被类型。在样地记录整体物种组成突出C.鲇作为适合其他一系列受威胁的生物分类的栖息地条件的潜在指标。对捷克共和国的C. fuscus的历史记录进行的分析显示，自1990年代以来，当地的数量呈上升趋势。似乎最近的气候变暖使嗜热梭状芽胞杆菌的范围扩大到了较冷的地区。Isoëto-Nanojuncetea和Bidentetea物种在两个河流和人为栖息地的土壤种子库很好的体现C.鲇。植被多样性对这种物种的遗传多样性具有弱的负面影响，而人为（与河流相比）的栖息地对遗传多样性具有强烈的负面影响。