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.
Latitudinal variation in the species richness of two groups of decapods. Data are pooled by faunal province, and the species richness of each province is plotted as a function of the mid-latitude of that province. Data replotted, with permission, from Boschi (2000). (a) Carideans (shrimps and prawns). (b) Brachyurans ( true crabs).
