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.
Predicted density (solid line = mean; shaded area = 95% confidence interval) of White Mount Fritillary (Boloria chariclea montinus), as adjusted for detectability using distance sampling, as a function of the number of inflorescences within a 20-m radius circle. Surveys were conducted in 2012 and 2013 at 113 points in the alpine zone of the Presidential Range, NH, USA.
