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.
Frequency of local adaptation experiments (proportion, N = 308) by level of replication (none to >10) for populations (black bars) and habitats (white bars). Population was defined by authors as a single source of plant materials. Habitat refers to areas from which populations were collected.
