Table. 1 Classification of vegetation patch-types.

Vegetation patch-type Description
Cork oak forests High cork oak (Quercus suber L.) density (more than 100-150 trees/ha) and a diverse shrubby layer, e.g., Arbutus unedo, Viburnum tinus, Erica arborea, Pistacia lentiscus, Rhamnus alaternus, Phillyrea latifolia; this class corresponds to a tree cover higher than 30%
Cork oak savannas Low cork oak density (less than 100 trees/ha) with sparse shrubs in the understory; this class corresponds to a tree cover between 10% and 30%
Shrublands Dominated by Cistus ladanifer shrubs, pure or mixed with Ulex argenteus, Genista hirsuta, and Lavandula stoechas shrubs; this class corresponds to a tree cover lower than 10%
Grasslands Dominated by cultivated croplands, semi-natural pastures, or fallow land; this class corresponds to a tree cover lower than 10%