Living and nonliving factors that influence the types of vegetation that grow at different elevations in the Arctic tundra also regulate the types of bacteria that grow in the soil. The distribution of generalist bacteria, which can adapt to a broader range of environmental conditions, ultimately determines the populations and variety of other bacteria inhabiting the soil ecosystem in this extreme environment.
Click here for original story, Plant life found to determine soil bacteria diversity in the Arctic tundra
Source: Phys.org