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.
Specific land use modifications near the Ames site from 1981–2001. Satellite images at ten-year intervals from 1981 to 2001 were used to identify locations that underwent substantial changes in land use. The red dot denotes the trap location, while specific changes are displayed in green (occurring between 1981–1991), purple (occurring between 1991–2001), or yellow (occurring between 1991–2001 at a location that had previously been modified).
