Genetic variability in populations of the terrestrial isopod Armadillidium vulgare living in soils with different land uses

•Agriculture lowers the genetic variability in the woodlice Armadillidium vulgare.•The genetic distance between individuals grows with geographic distance.•Agriculture management produces bottleneck effects in soil organisms populations.•Genetic variability in soil arthropods can be used as a disturbance bioindicator.•Cattle raising produces an intermediate loss of genetic variability in A. vulgare.