Table 2 Output of linear models testing the effects of and interactions between atrazine pollution (A), temperature (T) and strain on the response in mean and variance of the survival strategy index (Δmean index and Δvariance index, respectively). Significant p-values are in bold and accompanied by the effect size of the model factor, expressed as partial eta squared

C. striatum model factors (Δmean index ~ …)

df

F-value

p-value

\({{\varvec{\upeta}}}_{\mathbf{p}}^{2}\)

C. striatum model factors (Δvariance index ~ …)

df

F-value

p-value

\({{\varvec{\upeta}}}_{\mathbf{p}}^{2}\)

Atrazine

2

8.297

0.000

0.13

Atrazine

2

3.567

0.032

0.06

Temperature

2

1.508

0.226

Temperature

2

0.136

0.873

Strain

2

1.259

0.288

Strain

2

5.966

0.004

0.10

Atrazine * Temperature

4

1.114

0.354

Atrazine * Temperature

4

0.951

0.438

Atrazine * Strain

4

0.824

0.513

Atrazine * Strain

4

1.443

0.225

Temperature * Strain

4

0.706

0.590

Temperature * Strain

4

0.458

0.766

Atrazine * Temperature * Strain

8

0.089

0.999

Atrazine * Temperature * Strain

8

0.425

0.904

Residuals

108

Residuals

103

T. thermophila model factors (Δmean index ~ …)

df

F-value

p-value

\({{\varvec{\upeta}}}_{\mathbf{p}}^{2}\)

T. thermophila model factors

(Δvariance index ~ …)

df

F-value

p-value

\({{\varvec{\upeta}}}_{\mathbf{p}}^{2}\)

Atrazine

2

4.356

0.015

0.08

Atrazine

2

2.294

0.106

Temperature

2

8.347

0.000

0.13

Temperature

2

0.431

0.651

Strain

2

68.293

0.000

0.56

Strain

2

8.206

0.000

0.14

Atrazine * Temperature

4

0.469

0.758

Atrazine * Temperature

4

0.540

0.707

Atrazine * Strain

4

0.325

0.861

Atrazine * Strain

4

1.115

0.354

Temperature * Strain

4

5.986

0.000

0.18

Temperature * Strain

4

0.960

0.433

Atrazine * Temperature * Strain

8

0.391

0.923

Atrazine * Temperature * Strain

8

0.238

0.983

Residuals

107

Residuals

92