Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Similarity of forest-use types to old-growth forest for medicinal plants. Jaccard abundance-based similarity index (Chao et al. 2005). Mean and standard error, n = 15 plots per forest use type. Differing small letters indicate statistical difference (p ≤ 0.05) in the Mann–Whitney test.
