Fig. 5

Relationship between the alpha diversity (per species richness) of the crustacean assemblage and (a) temperature, (b) Al, (c) Pb, (d) Fe, (e) Mn, (f) As, (g) the seasons, (h) impact vs. control areas, and (i) the interaction between (g) and (h), sampled in the Itacaiúnas and Parauapebas river basins, in the Carajás Mosaic, Brazil. *α = 0.05.