Figure 1.
Study areas within the ecoregion of the European Central Plains. Lower right panel, Poland (dark green); lower left panel, location of two study areas with Poland; upper panels, locations of the study areas (blue circles).
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.