Table 1.
Results of joint species distribution models HMSC-soil and HMSC-air.
| Substrate | Model | Explanatory power | Proportion of explained variance | Proportion of responding species | ||||
|---|---|---|---|---|---|---|---|---|
| Habitat | Sequencing depth | Site | Plot | Natural habitat | Urban habitat | |||
| Soil | Presence–absence | 0.84 | 0.11 | 0.10 | 0.11 | 0.67 | 0.06 | 0.01 |
| Abundance | 0.24 | 0.26 | 0.25 | 0.23 | 0.26 | 0.14 | 0.00 | |
| Air | Presence–absence | 0.77 | 0.25 | 0.08 | 0.13 | 0.54 | 0.95 | 0.00 |
| Abundance | 0.39 | 0.35 | 0.05 | 0.16 | 0.44 | 1.00 | 0.00 | |
For presence–absence models, explanatory power is measured by AUC, for abundance models conditional on presence, it is measured by R2. The following columns show the average proportions of variance attributed to the fixed and random effects in the model. The last two columns indicate the proportion of species that showed with at least 95% posterior probability a positive response to natural sites or to urban sites, respectively. The models were fitted to those species that occur in at least 20 (out of the 90) sampling units, totaling 166 species for the soil analyses and 928 species for the air analyses.