Figure 4
Differences between current and projected past and future scenarios suitability histograms. The x-axis is suitabilitycurrent – suitabilitypast for past scenarios and suitabilityfuture – suitabilitycurrent for future scenarios. Each coloured band refers to a class of current suitability and its area in the histogram is proportional to the geographical area of the region with current suitability within this class. Areas with increasing/decreasing suitability (“expansion”/”contraction”) correspond to positive/negative differences and lies on the right/left hand side of the vertical red line. The area of each coloured band is the same across all histograms; the relation between the areas on each side of the vertical red line gives information about the extent of contraction relative to expansion in each projected scenario.
