当前位置: X-MOL 学术 › J. Limnol. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Relationship between ciliates and environmental parameters in a restored carbonate fen
Journal of Limnology ( IF 1.673 ) Pub Date : 2019-01-30 , DOI: 10.4081/jlimnol.2019.1867
Tomasz Mieczan , Małgorzata Adamczuk , Aleksander Świątecki , Natalia Rudyk-Leuska

Wetlands restoration has been implemented on sites exploited for agricultural for over a decade in Eastern Europe. However, little is known about microbial diversity in this region. Microbial processes and patterns can be used as sensitive indicators of changes in environmental conditions. The responses of ciliates wetlands restoration are largely unexplored. Based on the results of a long-term study in fen of the Poleski National Park (Poland), we assumed that restoration causes changes in the physicochemical properties of fen water and sought to answer the question of how ciliate communities react to these changes and whether these microorganisms can play a significant role as bioindicators in evaluating the restoration process. Twenty taxa were recorded in the ciliate community, with 16 taxa found prior to restoration and 12 after restoration. Restoration clearly modified the taxonomic composition and abundance of ciliates. This was reflected in a decrease in the abundance and in the density of these protozoa and in a significant increase in the proportion of euplanktonic species. Before restoration, the most common ciliates were Cinetochilum margaritaceum and Strombidium viride, while the proportion of Paramecium bursaria increased after restoration. We also observed that the improvement in hydrological conditions, and hence the transformation of the vegetation structure in the peat bog, causes changes in the trophic structure of ciliates. The RDA analysis showed that all variables together accounted for 86.9% of the total variance. However, variables that significantly explained the variance in ciliate communities were water level, temperature, pH, and nutrients. Our results suggest that an indicator species approach based on functional groups may be appropriate for biomonitoring fens restoration. Corresponding author: tomasz.mieczan@up.lublin.pl

中文翻译:

恢复碳酸盐岩纤毛虫与环境参数的关系

湿地恢复已在东欧用于农业开发的地点实施了十多年。然而,对该地区的微生物多样性知之甚少。微生物过程和模式可用作环境条件变化的敏感指标。纤毛虫湿地恢复的反应在很大程度上尚未得到探索。基于对波兰国家公园(波兰)沼泽的长期研究结果,我们假设恢复会导致沼泽水的理化性质发生变化,并试图回答纤毛虫群落如何对这些变化做出反应以及是否这些微生物可以作为评估修复过程的生物指标发挥重要作用。在纤毛虫群落中记录了 20 个分类群,在恢复前发现了 16 个分类群,在恢复后发现了 12 个分类群。恢复显然改变了纤毛虫的分类组成和丰度。这反映在这些原生动物的丰度和密度的下降以及浮游物种比例的显着增加上。修复前,最常见的纤毛虫是Cinetochilum margaritaceum 和Strombidium v​​iride,而Paramecium bursaria 的比例在修复后增加。我们还观察到水文条件的改善以及泥炭沼泽中植被结构的转变,导致纤毛虫的营养结构发生变化。RDA 分析表明,所有变量合计占总方差的 86.9%。然而,显着解释纤毛虫群落差异的变量是水位、温度、pH 值和营养物质。我们的结果表明,基于功能组的指示物种方法可能适用于生物监测沼泽恢复。通讯作者: tomasz.mieczan@up.lublin.pl
更新日期:2019-01-30
down
wechat
bug