Table 4 Log-likelihood ratio test results for assessing a seagrass treatment effect (presence/absence) and a treatment*month interaction effect on benthic CH4 and N2O fluxes; rows relate the null model, reduced model, and full model for CH4 and N2O, respectively.

From: The greenhouse gas offset potential from seagrass restoration

 

Dfa

logLik

deviance

χ2

Dfb

Pr(>χ2)

CH4^(0.133) ~ 1 + (1|ID)

3

−9.25

18.50

   

CH4^(0.133) ~ Treat + (1|ID)

4

−2.71

5.41

13.08

1

2.98E-04

CH4^(0.133) ~ Treat + Treat*Month + (1|ID)

14

15.51

−31.02

36.44

10

7.08E-05

N2O^(0.133) ~ 1 + (1|ID)

3

9.70

−19.39

   

N2O^(0.133) ~ Treat + (1|ID)

4

13.92

−27.84

8.45

1

3.65E-03

N2O^(0.133) ~ Treat + Treat*Month + (1|ID)

14

31.83

−63.65

35.81

10

9.09E-05

  1. aMixed effects model degrees of freedom determined by lmer function (see Bates et al.78)
  2. bLikelihood ratio test degrees of freedom (the difference between models used in each comparison).
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