Figure 4
From: Multiple mining impacts induce widespread changes in ecosystem dynamics in a boreal lake

Changes in sedimentary cladoceran and diatom communities. (A) Cladoceran community data presented as a principal components analysis (PCA) biplot, (B) Chronology, rarefied species richness and Shannon H′ indices, (C) diatom community data presented as a PCA biplot, and (D) Chronology, rarefied species richness and Shannon H′ indices. The solid horizontal line in (B–D) indicates the beginning of the mining, and the dashed line indicates the 2012 gypsum pond accident.