Table 3. ANOVA results from generalized linear mixed effects models testing the effect of forest conversion on stable isotope values of centipedes.
| Contrast | All data | Cryptops sp. | M. cf. stenoceps | |||
|---|---|---|---|---|---|---|
| Δ13C | Δ15N | Δ13C | Δ15N | Δ13C | Δ15N | |
| F vs. J | F1, 22.9 = 1.07 | F1, 18.0 = 0.42 | F1, 9.5 = 2.59 | F1, 9.3 = 0.58 | F1, 16.7 = 0.21 | F1, 13.5 = 0.15 |
| F vs. R | F1, 25.9 = 0.15 | F1, 22.8 = 1.04 | F1, 10.5 = 1.4 | F1, 10.5 = 2.27 | F1, 17.3 = 0.01 | F1, 15.8 = 1.05 |
| F vs. O | F1, 23.3 = 14.77*** | F1, 20.4 = 2.56 | F1, 9.5 = 12.84** | F1, 10.0 = 0.42 | F1, 17.1 = 8.11* | F1, 17.0 = 2.95 |
| J vs. R | F1, 24.7 = 0.45 | F1, 20.8 = 0.15 | F1, 10.0 = 0.64 | F1, 10.1 = 0.21 | F1, 16.3 = 0.32 | F1, 4.9 = 3.00 |
| J vs. O | F1, 23.3 = 5.86* | F1, 14.1 = 7.85* | F1, 9.5 = 1.09 | F1, 9.5 = 1.09 | F1, 16.0 = 5.25* | F1, 15.8 = 1.68 |
| R vs. O | F1, 24.5 = 12.87** | F1, 23.9 = 9.46** | F1, 9.7 = 3.52 | F1, 9.6 = 3.39 | F1, 15.2 = 11.02** | F1, 25.2 = 10.71** |
Results are given for planned comparisons between conversion systems (F = rainforest, J = jungle rubber-, R = rubber- and O = oil palm plantations) using the full set of measurements of 10 species (see also Table 1), data of Cryptops sp. and Mecistocephalus cf. stenoceps. Data are normalized to the values of plant litter collected at the respective sampling site. Degrees of freedom given represent Satterthwaite approximations.
* p < 0.05
** p < 0.01
*** p < 0.001.