Development of oribatid mite communities (Acari, Oribatida) on a mine dump

摘要: The oribatid mite fauna on the mine dump and in adjacent mixed forest has been subject of study. Three study plots, differing age plant cover, have chosen dump. A continuos increase abundance oribatids, species richness with successional stages was observed After 20 years development still 3–4 times lower than forest. dissimilarity composition three communities high. Many probably transported from other biotopes neighbouring progressive importance Sellnickochthonius immaculatus, S. cricoides, Liochthonius piluliferus to community at youngest site indicates their special features that enable mites colonize unfavourable habitats. As indicated by Canonical Correspondence Analysis (CCA), most important factor responsible for soil bulk density available Mg content accompanied water capacity. Graptoppia (Stenoppia) italica Bernini, 1973, Suctobelbella duplex (Strenzke, 1951), latirostris (Forsslund, 1941) were new Polish fauna.