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.
The focus of the publications in the field synopsis. We defined three possible foci: (1) Investigating a hypothesis concerning a biological invasion, (2) evaluating the impacts of a biological invasion, or (3) using a biological invasion as a model system for investigating fundamental ecological questions. A publication may include more than one focus.
