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  • This dataset is part of the study of mimetic host shifts in an endangered social parasite of ants, which is a joint study of the Centre for Ecology & Hydrology and the University of Oxford. It contains the relative abundance data of cuticular hydrocarbons extracted from worker ants of Myrmica sabuleti and M. schencki, and from caterpillars of Maculinea rebeli from two populations at the pre-adoption stage and after being reared by the two ant species. The chemical was analysed from the caterpillars from each region when reared with each ants, by using gas chromatography with mass spectrometric detection (GC-MSD). Various statistical analysis was then carried out to compare the differences between groups. It aims to test whether observed regional differences in M. rebeli's host specificity could be explained by variation in chemical mimicry. Detailed research method can be found in Thomas et al. (2013) Mimetic host shifts in an endangered social parasite of ants. Proc. R. Soc. B vol. 280 no.1751. ( Full details about this nonGeographicDataset can be found at

  • This dataset contains arthropod species presence and abundance data, species trait data and environmental data for arable reversion sites in southern England. A chronosequence of 52 arable grassland restoration sites and five target National Nature Reserve grassland communities were sampled for arthropods in 2014. These sites were located on calcareous soils. The majority of these sites were established as part of the South Downs Environmentally Sensitive Area (ESA), South Wessex Downs ESA, as well as through subsequent agri-environmental schemes including Countryside Stewardship or Higher Level agri-environment. Restoration sites ranged in age (1 to 30 years), habitat quality (e.g. sward structure and floral similarity to target grasslands), management (cutting and grazing) and surrounding landscape (isolation and cover of grassland). This environmental variation was captured and is included in the data set. Arthropods were identified across a wide range of trophic groups (detrititvores, herbivores, predators and pollinators). For arthropod species identified to species, information on functional traits is derived, including body mass, dispersal ability and trophic group. Full details about this dataset can be found at