In this thesis, the colonization of the microhabitat “one-year-old cattle dung pats” with soil arthropods was compared with the colonization of the soil in an alpine pasture. For this purpose, 4 samples from the early summer as well as 20 samples from autumn were pairwise (dung-soil) compared, relating to their colonization with small soil arthropods. In the autumn, a total of 7336 individuals could be verified in the dung samples, and 1988 individuals were determined in the soil samples. Throughout the study focused on the Oribatida, with a total number of 3026 individuals in the autumn samples. There were 2384 individuals in the dung samples and 642 individuals in the soil samples. Among the Oribatida 35 species could be detected. For 18 species, an occurrence in both dung and soil samples could be detected. A further 11 species were found exclusively in dung samples as well as another 6 species exclusively in the soil samples. During this work, three first descriptions for Styria could be made. The Sørensen-index showed a similarity of the species with 67.92% for dung and soil samples. The four samples taken in early summer, show in an exemplarily way the seasonal alterations. In these, 1391 individuals of oribatid mites were found, compared with 3097 oribatid mites out of the autumn samples from the same sites. A tendency of greater density of individuals in the autumn can be seen here especially for the Oribatida and Collembola, whereas in the case of the Trombidiformes more individuals were detected within the summer samples. The dung pat residues show a strong seasonal dependence on habitat use of species. The attractiveness of the microhabitat dung does not necessarily diminish with the progress of the rotting process, but it seems increasingly more stable conditions against seasonal fluctuations of the abiotic factors.