Fig 1.
The two prioritization strategies used to identify MAPAs for agro-biodiversity conservation.
Left: the Restrictive Strategy where for each step a threshold was defined, below which areas were not admitted to the following level. Only the areas that passed all the sieving stages were selected as MAPAs. Right: the Additive Strategy where a general threshold was initially worked out and only areas with value equal to or above it were selected as MAPAs. See the text for further explanations.
Table 1.
Threshold values for each index used to apply the RS and the AS prioritization strategies.
Fig 2.
Landrace density index (a) and Shannon index (b) relative to landraces recorded in Italy.
Fig 3.
Quadrants progressively taken into consideration and finally identified as MAPAs by applying the two strategies.
Quadrants with landrace diversity (LRD) (b, f, g): blue. Quadrants with wild species under threat (PWS) (c, h): purple. Quadrants with agro-ecosystem ecological diversity (AED) (d, i): green. Finally identified MAPAs quadrants (e, l): red.
Fig 4.
Percentages of the most frequently recorded species cultivated as landraces in the MAPAs identified through the RS (black columns) and the AS (white columns) prioritization strategies.
Table 2.
Value range of the indices detected in the 53 and 197 MAPAs identified with the RS and the AS prioritization strategies, respectively.