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 number of names with abundance (frequency, in percent) s is plotted against s on a loglog scale (red circles), and shows a very good fit to the distribution suggested in Eq. 1 (blue line).
