Figure 1.
Location of studied districts in Santiago Island, Cabo Verde (adapted from http://www.dholmes.com/master-list/caboverde/map-santiago.html).
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.