Table 1.
Ranking of the linear mixed effects models for linear and quadratic (latitude2) effects of latitude and other studied variables on community phylogenetic diversity (standardised effect size of the mean pairwise distance – SESmpd, and standardised effect size of the mean nearest taxon distance – SESmntd) in woody and herbaceous communities.
| Community type | Phylogenetic diversity | Model | logLik | AICc | ∆AICc | AICw | R2m | R2c |
|---|---|---|---|---|---|---|---|---|
| Woody | SESmpd | latitude + latitude2 + size + vegetation | −947.968 | 1916.4 | 0.00 | 0.400 | 0.25 | 0.46 |
| latitude + latitude2 + size + realm | −945.322 | 1917.5 | 1.03 | 0.238 | 0.28 | 0.47 | ||
| latitude + latitude2 + size | −950.605 | 1917.5 | 1.10 | 0.230 | 0.23 | 0.45 | ||
| latitude + latitude2 + size + realm + vegetation | −943.783 | 1918.6 | 2.22 | 0.132 | 0.29 | 0.48 | ||
| SESmntd | latitude + latitude2 + size | −843.544 | 1703.4 | 0.00 | 0.850 | 0.11 | 0.45 | |
| latitude + latitude2 + size + vegetation | −843.302 | 1707.1 | 3.69 | 0.135 | 0.11 | 0.45 | ||
| latitude + latitude2 + size + realm | −842.417 | 1711.7 | 8.24 | 0.014 | 0.12 | 0.44 | ||
| latitude + latitude2 + size + realm + vegetation | −842.286 | 1715.7 | 12.25 | 0.002 | 0.12 | 0.44 | ||
| Herbaceous | SESmpd | latitude + latitude2 + size + realm + vegetation | −997.599 | 2019.7 | 0.00 | 0.805 | 0.13 | 0.48 |
| latitude + latitude2 + size + vegetation | −1002.130 | 2022.6 | 2.83 | 0.195 | 0.13 | 0.51 | ||
| latitude + latitude2 + size + realm | −1008.466 | 2039.4 | 19.65 | 0.000 | 0.08 | 0.48 | ||
| latitude + latitude2 + size | −1012.197 | 2040.6 | 20.90 | 0.000 | 0.06 | 0.49 | ||
| SESmntd | latitude + latitude2 + size + realm + vegetation | −861.604 | 1747.7 | 0.00 | 0.762 | 0.28 | 0.38 | |
| latitude + latitude2 + size + vegetation | −865.881 | 1750.1 | 2.32 | 0.238 | 0.15 | 0.40 | ||
| latitude + latitude2 + size + realm | −882.025 | 1786.5 | 38.76 | 0.000 | 0.11 | 0.36 | ||
| latitude + latitude2 + size | −886.475 | 1789.2 | 41.45 | 0.000 | 0.01 | 0.41 |
The models are sorted by corrected Akaike information criterion value (AICc), with log likelihood (logLik), difference in AICc from the top-ranked model (∆AICc), model weight (AICw), marginal R2 (R2m), and conditional R2 (R2c). Size = sampling unit size; vegetation = vegetation type (closed, open, semi-open); realm = biogeographic realm (Afrotropical, Australasian, Indo-Malayan, Nearctic, Neotropical, Palearctic)29. Study identification was included as a random effect variable in all models.