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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

  

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[[2]]

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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.