This database contains supplementary material for our manuscript "Genetic structure of the European hedgehog (Erinaceus europaeus) in Denmark": Figure 1a. Box plot of the individual heterozygosity (iHO) estimated for the six populations: Figure 1b. Plot of the iHO values ranked from the lowest to the highest values within each population Table 1. Tukey’s test matrix for testing pairwise significant differences of the mean iHO between the six populations Figure 2. Likelihood plot of STRUCTURE results Table 2. Overview of individuals for genetic sampling Figure 3. Principal Component Analysis Table 3. Dataset from GENEPOP Table 4. Data for fragmentation analyses