Department of Botany and Forest Habitats, Poznań University of Life Sciences, Wojska Polskiego 71D, Poznań, 60-625, Poland.
Department of Plant Ecology and Environmental Protection, Adam Mickiewicz University, Uniwersytetu Poznańskiego 6, Poznań, 61-614, Poland.
Exp Appl Acarol. 2024 Oct;93(3):609-626. doi: 10.1007/s10493-024-00951-2. Epub 2024 Aug 1.
Vegetation cover has been consistently reported to be a factor influencing soil biota. Massive spreading of invasive plants may transform native plant communities, changing the quality of habitats as a result of modification of soil properties, most often having a directional effect on soil microorganisms and soil fauna. One of the most numerous microarthropods in the litter and soil is Acari. It has been shown that invasive plants usually have a negative effect on mites. We hypothesized that invasive Spiraea tomentosa affects the structure of the Uropodina community and that the abundance and species richness of Uropodina are lower in stands monodominated by S. tomentosa than in wet meadows free of this alien species. The research was carried out in wet meadows, where permanent plots were established in an invaded and uninvaded area of each meadow, soil samples were collected, soil moisture was determined and the mites were extracted. We found that Uropodina mite communities differed in the abundance of individual species but that the abundance and richness of species in their communities were similar. S. tomentosa invasion led primarily to changes in the quality of Uropodina communities, due to an increase in the shares of species from forest and hygrophilous habitats. Our results suggest that alien plant invasion does not always induce directional changes in mite assemblages, and conclude that the impact of an alien species on Uropodina may cause significant changes in the abundance and richness of individual species without causing significant changes in the abundance and diversity of their community.
植被覆盖一直被认为是影响土壤生物区系的一个因素。入侵植物的大量扩散可能会改变本地植物群落，改变栖息地的质量，这主要是由于土壤性质的改变，通常对土壤微生物和土壤动物区系有定向影响。在凋落物和土壤中数量最多的微节肢动物之一是节肢动物。已经表明，入侵植物通常对螨类有负面影响。我们假设入侵的绣线菊会影响 Uropodina 群落的结构，并且在单一种群绣线菊占主导地位的林分中，Uropodina 的丰度和物种丰富度低于没有这种外来物种的湿地草地。研究是在湿地草地中进行的，在每个草地的受入侵和未受入侵区域建立了永久性样地，收集土壤样本，测定土壤水分，并提取螨虫。我们发现，Uropodina 螨虫群落的个体物种丰度存在差异，但它们群落中的物种丰度和丰富度相似。绣线菊的入侵主要导致 Uropodina 群落质量的变化，这是由于森林和喜湿生境物种的份额增加所致。我们的结果表明，外来植物入侵并不总是导致螨类组合的定向变化，并得出结论，外来物种对 Uropodina 的影响可能会导致个别物种的丰度和丰富度发生显著变化，而不会导致其群落的丰度和多样性发生显著变化。
