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Seasonal variations of rotifer communities in three climatic zones: effects of environmental parameters on changes of functional groups
Limnology ( IF 1.6 ) Pub Date : 2021-10-06 , DOI: 10.1007/s10201-021-00681-z
Fang-Ping Qian 1 , Xin-Li Wen 1 , Yi-Long Xi 1
Affiliation  

In this study, the annual changes of rotifer communities were observed in six lakes belonging to tropical, subtropical, and warm temperate zones. Rotifers were classified into different functional groups based on the morphology of the corona and trophi. The abundance and biomass of each functional group were compared between climatic zones, and the driving environmental factors were analyzed. Analysis of similarities (ANOSIM), and similarity percentage analysis (SIMPER) indicated distinct separation in rotifer community structure between the three climatic zones. The subtropical zone showed more functional groups, higher abundance and biomass of dominant functional groups than tropical and warm temperate zones. Asplanchna abundance and water transparency were considered as the major factors affecting rotifer functional groups in all the three climatic zones. Chlorophyll a content (Chl-a) was more important in subtropical and warm temperate zones than in tropical zone. Water temperature mainly affected rotifer functional groups in warm temperate and tropical zones, but showed less effects in subtropical zone. In addition, NO2-N content was an important factor in warm temperate zone, but not in subtropical and tropical zones. Overall, classification of functional groups could be a useful method to investigate the changes of rotifer community structure in different climatic zones.



中文翻译:

三个气候带轮虫群落的季节变化:环境参数对功能群变化的影响

本研究对热带、亚热带和暖温带6个湖泊轮虫群落的年度变化进行了观测。轮虫根据日冕和滋养体的形态分为不同的功能组。比较不同气候带各功能群的丰度和生物量,分析驱动环境因素。相似性分析 (ANOSIM) 和相似性百分比分析 (SIMPER) 表明三个气候带之间轮虫群落结构明显分离。与热带和暖温带相比,亚热带显示出更多的功能群,优势功能群的丰度和生物量更高。阿斯普兰奇纳丰度和水透明度被认为是影响所有三个气候带轮虫功能群的主要因素。亚热带和暖温带的叶绿素a含量(Chl-a)比热带更重要。水温主要影响暖温带和热带地区的轮虫功能群,对亚热带地区影响较小。此外,NO 2 - -N 含量是暖温带的一个重要因素,而在亚热带和热带地区则不是。总体而言,功能群分类是研究不同气候带轮虫群落结构变化的有效方法。

更新日期:2021-10-06
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