Figure 1.
Geographical distribution of (a) B. sylvaticum sampling locations, (b) land use and (c) canopy cover. Sampling locations were chosen to span an urban-to-rural (northwest to southeast) gradient in the Clackamas watershed.
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.