Carabid beetles are considered as important contributors to the regulation of weeds and recent studies have shown that weed seed predation by carabids may partly substitute for herbicide use in agriculture. Enhancing this ecosystem service requires to understand the spatio-temporal distribution of these species during the cropping season. Infra-annual variation in the spatial distribution of ground beetles within agricultural mosaics is less documented but of prime importance given that agricultural landscapes are highly dynamics. Indeed, crop phenology, agricultural operations but also habitat requirements during life cycle can lead to a redistribution of individuals between crop types or between crops and semi-natural habitats. With a six months experimental monitoring, we analysed the spatio-temporal dynamics of three abundant seed-eating carabid species (Poecilus cupreus, Amara similata and Pseudoophonus rufipes) in oilseed rape with two types of adjacent habitat, either a cereal crop or a grassy field margin (i.e. a semi-natural habitat). We assessed the variation in time of four indicators : the activity density, the nutritional state (estimated by the measure of condition factor) in oilseed rape, the relative use of the interface with the adjacent habitat, and the proportion of carabids leaving rape fields measured with directional traps. Abundance and nutritional state of the omnivorous species P. cupreus decreased after harvest, a period related to a decrease of prey abundancy and the end of life cycle. More interestingly, we detected a tendency of movement from oilseed rape crop to the adjacent habitat after harvest for the granivorous A. similata, but not as strong as expected. The presence of the grassy field margins close to the oilseed rape crop influenced the spatiotemporal dynamics of the granivorous species P. rufipes and A. similata suggesting spillover processes for these two species. Conversely, there was no effect of the presence of the grassy field margin on P. cupreus, which could indicate that this species can complete its lifecycle in oilseed rape crops. Monitoring four complementary indicators gave a more thorough understanding of the perception of local and adjacent habitats by ground beetles and of the potential ecological role of these habitats, a prerequisite for the identification of landscape configurations that would enhance the abundance of these natural enemies within crops in order to promote the seed predation service.