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.
Network of ecological corridors in Poland based on the study by the Mammal Research Institute of the Polish Academy of Sciences [7]. The ecological river corridors in Poland are marked in green; the blue line marks the course of the ecological corridor in the Wieprz River valley.
