Taxanomy of soil microarthropods of the steppe zone of Mongolia

Abstract The one of the organisms that has important role for the formation of the ecological system in all different zones of the Mongolia are microarthropods. The microarthropods such as Collembola, Thysanura, Diplura, Protura, that are poor developed and preliminary non-wing insect, and Oribatei are the important component of the soil fauna. This study is the first study of micro arthropods of the Dariganga plane sub region of the Eastern Mongolia steppe region. Main objective of the study is to determine taxonomical characteristics of the soil microarthropods in Eastern Mongolian steppe ecosystem. From our investigations we attained the following conclusions: • During the study we have identified 90 species of soil microarthropods that belongs to the 64 genera, 43 families, 9 order and 2 classes. • The main part of the identified soil microarthropods or 70 species that belongs to the 48 genera, 30 families was species of Acari: Oribatida. The species were composing 78% percent of total identified species. Rest parts were consisting of species of Acari: Mesostigmatida (5 species or 5.6%), Insecta: Collembola (4 species or 4%), and other species of microarthropods (11 species). • Species of Nothrus biciliatus, Anachipteria deficiens, Eniochthonius minutissimus were recorded first in the fauna of Mongolia.