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Table 2 Comparison of indices of traditional ecological knowledge between two samples (permanent and non-permanent).

From: Evaluating indices of traditional ecological knowledge: a methodological contribution

  Permanent Sample (n = 375) Non-permanent Sample Mann-Whitney two-sample
Index Mean Std Median Variance Obs Mean Std Median Variance Prob>| z|
(1) Cultural knowledge of uses 0.58 0.20 0.56 0.04 155 0.55 0.19 0.57 0.03 0.23
(1) Agreement with experts 13.61 3.08 14 9.47 155 12.66 3.37 13.2 11.3 0.005
(2) Ecological cultural knowledge 0.55 0.18 0.57 0.03 110 0.55 0.18 0.56 0.03 0.96
(2) Ecological knowledge 5.48 1.49 6 2.21 110 5.53 1.64 5 2.69 0.95
(3) Average plants used 0.14 0.15 0.09 0.02 275 0.08 0.13 0 0.01 <0.0001
(3) Total plants used 2.58 3.66 1 13.4 275 0.90 1.75 0 3.05 <0.0001
(3) Total species used 0.87 1.06 1 1.13 275 0.49 0.81 0 0.65 <0.0001
(4) Skills using plants 8.11 3.02 8 9.1 160 7.47 3.47 8 12.06 0.03
  1. (1) Data collected with multiple-choice task on uses of wild plants; (2) Data collected with multiple-choice task on ecology of wild plants; (3) Data collected with interviews of reported use of plants; (4) Data collected with questionnaire on skills