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.
Hypothetical progression patterns. (A) A simple progression pattern with cladogenesis coincident with interisland migration. Hatch marks show interisland migrations. (B) A complex progression showing clades, grades, and back migration. Hatch marks show interisland migrations. Colors correspond to islands: green, Kauai; orange, Oahu; purple, Molokai; blue, Maui; and red, Hawaii.
