Table 1 Portuguese populations of P. nigra: respective geographic coordinates, average age and number of individuals sampled per population

Manteigas

40° 22′ 47.00″ N; 7° 33′ 18.00″ W

93.3

37

Vale do Zêzere

40° 19′ 19.00″ N; 7° 34′ 26.00″ W

59.1

37

Paredes de Coura

41° 52′ 0.00″ N; 8° 36′ 21.00″ W

57.8

36

Caminha

41° 50′ 15.00″ N; 8° 43′ 57.00″ W

57.9

41

Campeã

41° 19′ 9.12″ N; 7° 53′ 28.35″ W

58.1

35

Vila Pouca de Aguiar

41° 31′ 02.72″ N; 7° 35′ 31.36″ W

74.7

38