Table 2.
Effects of seasonal rainfall (Feb.–Mar.; in mm), as well as soil texture (amount of gravel and cobble in %) and bottom-up effects among plants and ground-dwelling arthropods on plant cover and arthropods’ activity density.
| Plants | Herbivores | Omnivores | Predators | Detritivores | Ants | |
|---|---|---|---|---|---|---|
| Seasonal rainfall | 0.17*** | -5.76*** | 3.61*** | n.s | 6.78*** | -2.64** |
| Gravel | -0.13* | n.s | 2.40* | n.s | 1.98* | n.s |
| Cobble | n.s | n.s | n.s | n.s | n.s | n.s |
| Plants | NT | 3.40*** | 4.65*** | NT | n.s | n.s |
| Herbivores | NT | NT | 9.75*** | 3.23** | NT | 3.63*** |
| Omnivores | NT | NT | NT | 2.01* | NT | NT |
| Detritivores | NT | NT | n.s | 3.73*** | NT | n.s |
Summarized results giving estimates of generalized linear mixed-effects models: ‘n.s.‘ not significant; *P<0.05, **P < 0.01, ***P < 0.001); bold: positive effect on response variable, italic: negative effect on response variable; ‘NT’ indicates variables not tested in the respective model. For detailed model results, see Supplementary Table S3.