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Table 1 Structure of ten seed exchange networks in the Iberian Peninsula

From: Tertius gaudens”: germplasm exchange networks and agroecological knowledge among home gardeners in the Iberian Peninsula

   [[1]] [[2]] [[3]] [[4]]
Area Network name (n) # Nodes^ (Gardeners) Density Components Network centralization (%)
Asturias Valle del Cordal (n = 56) 118 ( = 40 + 56 + 22) 0.017 6 8.09
Catalan Pyrenees Llanars (n = 21) 50 ( = 0 + 21 + 29) 0.019 15* 6.68
Llançà (n = 15) 24 ( = 5 + 15 + 4) 0.052 11 21.54
Maçanet de Cabrenys (n = 31) 34 ( = 0 + 31 + 3) 0.043 14* 12.69
Molló (n = 34) 42 ( = 0 + 34 + 8) 0.023 16* 7.99
Vall Fosca (n = 55) 111 ( = 14 + 55 + 42) 0.018 5 4.91
Sierra Norte de Madrid Canencia (n = 23) 33 ( = 0 + 23 + 10) 0.037 7 6.94
Montejo de la Sierra (n = 27) 65 ( = 16 + 27 + 22) 0.032 3 16.39
Patones (n = 40) 114 ( = 15 + 40 + 59) 0.025 7 12.01
  Valdemanco (n = 61) 108 ( = 22 + 61 + 25) 0.020 4 7.14
  1. ^ # Nodes or Gardeners = (Nodes outside research area + nodes with complete data for multivariate analysis + nodes with incomplete data or not interviewed). * Less than 50% of the nodes belong to the main network.