Figure 3.
Frequency of Mhc supertype 6 in great tit hosts (±s.e.) in high P. circumflexum infection-risk areas (solid lines) and low-P. circumflexum infection-risk areas (dotted lines) as a function of host age.
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.