Evaluating indices of traditional ecological knowledge: a methodological contribution

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

	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) 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

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