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.
Darker shades correspond to areas with higher selection frequency and therefore constitute spatial priorities. Red delineation illustrates borders of the 8 ecoregions.
