Beta diversity <i>versus</i> depth and latitude.

<p>Trends in beta diversity with depth and latitude, measured as (<b>A</b>) average Jaccard dissimilarity and (<b>B</b>) average Raup-Crick dissimilarity, which controls for variation in richness (alpha diversity). Values are plotted for trawls within cells consisting of bins made from 200 m depth intervals and 2° of latitude. The standard errors per cell (which, for clarity, are not shown graphically) ranged from 0.22 to 2.02 for (<b>A</b>) and 0.44 to 3.16 for (<b>B</b>).