Table 5.

Statistical metrics of significant linear regressions comparing phyla relative abundances along polygon transects within the Fryxell basin.

Independent variable	Dependent variable	X – Intercept	Correlation coefficient	R2
Acidobacteria	Actinobacteria	0.43∗∗	-1.12∗	0.74∗
Bacteroidetes	Gemmatimonadetes	0.31∗∗∗	-2.12∗∗	0.93∗∗
Bacteroidetes	Proteobacteria	0.01	0.25∗	0.73∗
Bacteroidetes	Deinococcus–Thermus	0.26∗∗∗	-0.70∗	0.82∗
Gemmatimonadetes	Deinococcus–Thermus	0.03∗	0.31∗	0.82∗

^∗P ≤ 0.1, ^∗∗P ≤ 0.01, ^∗∗∗P ≤ 0.001.