Table 2.

Overall diversity and density of medicinal plants in old-growth forest, forest degraded by logging, and regrowth forest. Mean and standard error, n = 15 plots per forest-use type. Differing small letters indicate statistical differences (p ≤ 0.05) in the Mann–Whitney test.

	Old-growth forest	Forest degraded by logging	Regrowth forest
	Mean ± SE	Mean ± SE	Mean ± SE
Total number of species	55	40	49
Density (n per m-2)	19.1 ± 1.8 a	13.7 ± 2.6 b	20.0 ± 3.1 a
Species richness (n per 40 m2 plot)	18.1 ± 1.4 a	10.1 ± 1.0 b	15.3 ± 1.4 a
Shannon index (H/)	2.2 ± 0.1 ab	1.8 ± 0.2 b	2.3 ± 0.1 a
Shannon Evenness (EH)	0.77 ± 0.02 b	0.80 ± 0.06 a	0.84 ± 0.02 a
Sørensen index	0.42 ± 0.03 a	0.29 ± 0.03 c	0.38 ± 0.03 b
Chao abundance based index	0.48 ± 0.04 a	0.24 ± 0.03 c	0.32 ± 0.04 b