Figure 1

(A) Campo Rupestre vegetation; (B) (T1) native vegetation without Periandra mediterranea; (C) P. mediterranea; (D) (T2) native vegetation with: P. mediterranea (P); (E,F) (T3) beginning of Melinis minutiflora (M) invasion; barrier or halo formed by P. mediterranea (P); (G) Melinis minutiflora (M), >50% of invasion; (H) Melinis minutiflora spots in the field circumscribed by native vegetation. All the photographs were taken by M.R.Scotti.