Table 2 The correlations between bacterial abundance and geochemical factors in sediments from Lake Y2, in maritime Antarctica.

From: Bacterial diversity is strongly associated with historical penguin activity in an Antarctic lake sediment profile

Geochemical

Actinobacteria

Gemmatimonadetes

Bacteroidetes

Gammaproteobacteria

Acidobacteria

Chloroflexi

Alphaproteobacteria

Deltaproteobacteria

Betaproteobacteria

factors

TC

0.132

0.615**

0.155

0.358

0.422*

0.511**

0.728**

−0.332

−0.670**

TN

0.166

0.556**

0.194

0.381*

0.347

0.451*

0.623**

−0.310

−0.611**

TP

0.066

0.619**

0.094

0.407*

0.495**

0.523**

0.773**

−0.338

−0.690**

pH

0.058

0.443*

0.071

0.044

0.426*

0.470*

0.513**

−0.036

−0.487**

Cu

0.108

0.604**

0.158

0.394*

0.366

0.480**

0.752**

−0.301

−0.655**

Zn

0.143

0.614**

0.157

0.389*

0.396*

0.476*

0.748**

−0.319

−0.676**

Sr

0.082

0.637**

0.163

0.409*

0.390*

0.490**

0.759**

−0.331

−0.680**

Ba

0.150

0.654**

0.073

0.231

0.554**

0.515**

0.682**

−0.298

−0.693**

Fe

−0.116

−0.643**

−0.142

−0.337

−0.481**

−0.529**

−0.767**

0.293

0.710**

Mn

−0.159

−0.684**

−0.100

−0.322

−0.565**

−0.574**

−0.790**

0.300

0.756**

Mg

−0.112

−0.621**

−0.121

−0.350

−0.469*

−0.535**

−0.781**

0.284

0.699**

Al

−0.148

−0.482**

−0.029

−0.332

−0.271

−0.411*

−0.652**

0.136

0.547**

  1. Note: **Correlation is significant at the 0.01 level (2-tailed) and *Correlation is significant at the 0.05 level (2-tailed)