Rotifer structure may serve as predictor of environmental features, including temperate subclimates between water bodies. The difference in latitude between two temperate regions (Poland vs. Croatia) affects the identification of particular environmental factors that subsequently influence the taxon-related indices of rotifers. A study on 10 water bodies found that taxon-trait indices were sensitive in identifying latitude differences, even though extreme weather conditions were not considered, and only two seasons (spring and autumn) were examined. A variable rotifer community, with a high share of rare species, was obtained. We found a distinctiveness of abiotic factors between both countries, indicating a higher trophic state in Poland. Although habitat conditions were more similar in spring compared to the autumn, the percentage of rotifer common taxa was alike in both seasons but variation in distinct species community was clear. Trophic state increase in Poland was reflected in the structure of dominant and distinct species, with a wide range of eutrophy indicators. Comparing how rotifer species respond to environmental conditions is important for developing methods to assess trophic state changes due to climate change. Single species, distinct or rare species, are often the first sign of changes.

轮虫结构可以作为环境特征的预测因子，包括水体之间的温带亚气候。两个温带地区（波兰与克罗地亚）之间的纬度差异影响特定环境因素的识别，这些因素随后影响轮虫的分类相关指数。对 10 个水体的研究发现，即使没有考虑极端天气条件，并且只检查了两个季节（春季和秋季），分类群性状指数在识别纬度差异方面仍然很敏感。获得了具有高比例稀有物种的可变轮虫群落。我们发现两国之间非生物因素的独特性，表明波兰的营养状态较高。尽管春季的栖息地条件与秋季相比更为相似，但轮虫常见类群的百分比在两个季节都相似，但不同物种群落的变化很明显。波兰营养状态的增加反映在优势物种和独特物种的结构上，具有广泛的富营养化指标。比较轮虫物种对环境条件的反应对于开发评估气候变化引起的营养状态变化的方法非常重要。单一物种、独特或稀有物种往往是变化的第一个迹象。