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Table 4 Differences between children/adolescents (< = 20 years) and adults (> 20 years) in numbers of plant reports per freelist, habitat category and use category (Mann–Whitney U test)

From: Local plant knowledge and its variation among farmer’s families in the Napf region, Switzerland

Variable Age groups n Arithmetic mean SD p value
Freelist length Children/Adol.(< = 20 years) 20 24.95 19.204 0.000
  Adults(> 20 years) 40 54.35 24.603  
Garden Children/Adol.(< = 20 years) 20 8.00 8.974 0.194
  Adults(> 20 years) 40 13.20 15.604  
Orchard Children/Adol.(< = 20 years) 20 3.15 2.700 0.354
  Adults(> 20 years) 40 4.00 3.080  
Field Children/Adol.(< = 20 years) 20 0.80 2.016 0.011
  Adults(> 20 years) 40 2.38 3.364  
Meadow/pasture Children/Adol.(< = 20 years) 20 5.35 3.438 0.000
  Adults(> 20 years) 40 17.90 8.366  
Forest Children/Adol.(< = 20 years) 20 5.95 4.828 0.002
  Adults(> 20 years) 40 12.55 8.515  
Way- or brookside Children/Adol.(< = 20 years) 20 1.55 1.701 0.000
  Adults(> 20 years) 40 4.10 2.925  
Other sites Children/Adol.(< = 20 years) 20 0.50 0.761 0.681
  Adults(> 20 years) 40 0.75 1.149  
Meadow (grasses) Children/Adol.(< = 20 years) 20 0.60 0.598 0.000
  Adults(> 20 years) 40 4.43 4.119  
Meadow (herbaceous) Children/Adol.(< = 20 years) 20 4.75 3.354 0.000
  Adults(> 20 years) 40 13.48 6.081  
Forest (trees) Children/Adol.(< = 20 years) 20 3.15 3.392 0.014
  Adults(> 20 years) 40 6.38 4.996  
Forest (shrubs) Children/Adol.(< = 20 years) 20 0.60 0.821 0.000
  Adults(> 20 years) 40 2.60 2.193  
Forest (herbaceaous) Children/Adol.(< = 20 years) 20 2.20 2.913 0.043
  Adults(> 20 years) 40 3.58 3.129  
Edible plants Children/Adol.(< = 20 years) 20 14.25 13.603 0.021
  Adults(> 20 years) 40 25.50 19.396  
Fodder Children/Adol.(< = 20 years) 20 3.65 3.870 0.000
  Adults(> 20 years) 40 11.03 7.495  
medicinal plants Children/Adol.(< = 20 years) 20 2.45 3.706 0.000
  Adults(> 20 years) 40 8.83 8.149  
Ornamental plants Children/Adol.(< = 20 years) 20 3.15 3.703 0.112
  Adults(> 20 years) 40 6.63 8.136  
Wood Children/Adol.(< = 20 years) 20 4.75 8.052 0.199
  Adults(> 20 years) 40 8.43 8.930  
Toy Children/Adol.(< = 20 years) 20 2.25 2.124 0.033
  Adults(> 20 years) 40 1.58 2.640  
Veterinary medicine Children/Adol.(< = 20 years) 20 0.00 0.000 0.000
  Adults(> 20 years) 40 1.38 1.944  
Other uses Children/Adol.(< = 20 years) 20 1.55 2.704 0.003
  Adults(> 20 years) 40 4.15 4.458