Table 2.
Associations between island geographical features and the phylogenetic structure (NRI and NTI) of island mammal assemblages. (Coefficients for best-fitting spatial GLS models using 1000 km source pools; see text for details of model-fitting procedures. (a) Land-bridge islands and (b) oceanic islands. *p≤0.001; **p≤0.01; ***p≤0.05; #p≤0.06.)
| group | carnivores | primates | ungulates | rodents | megabats | microbats | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| metric | NRI | NTI | NRI | NTI | NRI | NTI | NRI | NTI | NRI | NTI | NRI | NTI |
| (a) | ||||||||||||
| d.f. | 191 | 191 | 60 | 60 | 98 | 162 | 34 | 35 | 147 | 143 | ||
| intercept | 1.98* | 1.891* | 0.265 | 0.718 | −0.461 | 0.78*** | −4.046*** | −8.839* | 1.377* | 1.189* | ||
| species richness | −0.439* | −0.618* | −0.573*** | −0.937* | −0.21# | −0.618** | −0.322** | −0.222*** | ||||
| area | 0.253** | 0.453* | ||||||||||
| elevation | −0.098* | −0.077* | −0.183** | −0.297** | −0.101* | |||||||
| habitat diversity | 0.3*** | |||||||||||
| (b) | ||||||||||||
| d.f. | 15 | 15 | 9 | 9 | 10 | 10 | 45 | 45 | 127 | 127 | 169 | |
| intercept | 0.63 | 0.799 | −2.316*** | −2.522 | −1.839 | −2.303 | 0.096 | −0.339 | 0.818 | 0.59*** | 0.464# | |
| species richness | 1.558* | 1.431** | 2.207* | 1.397* | 1.225* | 1.986* | 0.74** | 0.722** | −0.501* | −0.385** | −0.177# | |
| area | ||||||||||||
| elevation | −0.224** | −0.27** | ||||||||||
| habitat diversity | ||||||||||||