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Figure 9.


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Circle of correlation from a normalized PCA based on the data in Table 1 (19 Corine Biotope codes × 12 sampling station records). These correlations led to the identification of the Corine Biotope habitats most frequently associated in each of the 12 records. The F1 axis thus compares records containing wild Robinia stands (83.324), western Mediterranean riparian forests (44.5) and brambles (31.831) with those containing Osyris alba brush (32.216), tree rows (84.1), and holm oak thickets (45.3) and vegetation cover on siliceous rocks (62.2). The F2 axis compares records that associate orchards (83.15) and vineyards (83) with those that do not. The method used to differentiate the stations according to their phytoecological profile … and nothing else!

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