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Abstract
Presence of a faunal group may influence the density of other fauna in pedoecosystem in arid environment. Therefore, season-dependent impacts of earthworms on populations of some important groups of soil fauna were studied. Earthworm associated alterations in populations of Collembola, mites, beetles, woodlice and pseudoscorpions showed remarkable results. Abundances of these soil faunal groups were higher at the sites with earthworms as compared to the sites without earthworms throughout the year. On the one hand, the highest abundance of Collembola and beetles were recorded in July. On the other hand, mite, woodlouse and pseudoscorpion showed their highest abundances in August at the sites with earthworms. The present findings suggest earthworms-induced enrichment of below-ground faunal biodiversity in a desert pedoeco-system.