As an increasingly rationalized forestry and agriculture have human interference in the form of tradition, grazing and use declined. There is a strong link between biodiversity and disturbance of the landscape. In sandy soils many insects and plants require exposed sand to survive while the disorder may contribute to seed dispersal in the woodlands. On behalf of O-Ringen Skåne 2014, a study of the interference from orienteering in sandy soil and the forest during competitions conducted. The aim is to clarify the interference of which orienteering runners contributes, through to inventory presence before and after the competitions in the bottom and field layer in three locations. The results showed a decreased frequency of dominant, but trivial species in all areas and in one area the amount of bare ground also increased. The interference allows for less dominant species to spread and therefore can benefit the biodiversity. Orienteering can be a part of future conservation.