The coastal area between Mazara del Vallo and Menfi during the Middle Ages (from Calamia et al. 2004, modified). The shaded surface coincides with the previous extension of the open forestland of Birribaida; lines refer to 50 and 100 m a.s.l. or to the main local watercourses. As for the Swabian castles, Bellumrepar (1), Bellumvider (2), and Burgimilluso (3), are currently located in the centre of Castelvetrano, Campobello di Mazara and Menfi, respectively.

  Part of: La Rosa A, Gianguzzi L, Salluzzo G, Scuderi L, Pasta S (2021) Last tesserae of a fading mosaic: floristic census and forest vegetation survey at Parche di Bilello (south-western Sicily, Italy), a site needing urgent protection measures. Plant Sociology 58(1): 55-74.