Fig. 6: Clustering analysis and the influence of physicochemical factors on known bloom-causing algae across the Tibetan Plateau.

Cluster analysis of the bloom-causing algae communities (Fig. 5b) on the Tibetan Plateau and the difference in their relative abundance (a). Samples from group 1 are ANM samples, which exhibits a higher relative abundance of bloom-causing cosmopolitan algae. Samples of group 2 and 3 have a very low relative abundance of bloom-causing cosmopolitan algae. DistLM analysis identified the importance of environmental variables on bloom-causing algae (b).