Distance Based Linear Model (DistLM) of abundance distribution along the southern African coasts of Talorchestia capensis (a) and Africorchestia quadrispinosa (b).

The plots represent the absolute abundance data for each site of collection. The grey triangles show the sites in the Cool Temperate bioregion; the black triangles, the sites in the Warm Temperate bioregion. The dbRDA values are reported for the first (dbRDA1) and second axes (dbRDA2). The base variables which best explain the distribution of abundance are reported in the graph as vectors. (resemblance: Bray Curtis similarity; transformation: square root; correlation type: Pearson, correlation>0.2).