Figure 1From: Unveiling an ancient biological invasion: molecular analysis of an old European alien, the crested porcupine (Hystrix cristata)Samples distribution. Geographical location of the analyzed samples: 179 H. cristata and 9 H. africaeaustralis [see Additional file 2]. Occurrence areas of the two major H. c. clades and of H. a. are coloured (modified from [11]). Colour of Italian samples correspond to haplotype network in Figure 3a.Back to article page