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Table I

Location and climatic details of the studied populations. Climatic data for MIMI, PLEU and TAMR are derived from the WorldClim database. Data for the Spanish populations are obtained from a regional model (see Materials and methods).

Code Population Country Latitude and longitude Mean altitude Annual Mean annual Aridity index
range (m) rainfall (mm) temperature (°C)
ARMY Armayán Spain 43° 18′ N 6° 29′ W 532 1160 11.8 0
ASPE Arenas de San Pedro Spain 40° 12′ N 5° 3′ W 728 1318 14.2 69.4
CDVO Cadavedo Spain 43° 32′ N 6° 25′ W 180 1316 13.2 0.8
COCA Coca Spain 41° 15′ N 4° 30′ W 780 454 12.3 51.4
MIMI Mimizan France 44° 12′ N 1° 13′ W 20 935 13.2 0
ORIA Oria Spain 37° 30′ N 2° 20′ W 1150 357 13.1 110
PLEU Pleucaeuc France 47° 47′ N 2° 20′ W 80 855 12.0 0
PTOV Puerto de la Vega Spain 43° 33′ N 6° 38′ W 98 1283 13.4 4.9
SCRI San Cipriano Spain 42° 07′ N 8° 22′ W 727 1600 12.3 15.8
TAMR Tamrabta Morocco 33° 36′ N 5° 01′ W 1760 763 10.8 67.9