Fig. 3.
Digital elevation model, protected areas and hot spots of red-listed native and alien species. (A) Digital elevation model (25 × 25 m) for the study area (Province of Trento, NE Italy); and hot spot maps (2 × 2 km) for (B) red-listed native and (C) alien species occurrence. Colors show different values of the Getis-Ord Gi statistic from low (light blue) to high values (red). Yellow to red cells represent statistically significant hot spots (P < 0.05). Data on protected areas come from regional land-use maps (Methods). Hot spots are based on 604 red-listed native species and 134 alien species.