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Table 1 Results of one- and two-predictor regressions of independent contrasts for predicting extinction risk in Chinese endemic birds

From: Correlates of extinction risk in Chinese endemic birds

Variable Univariate PGLS Bivariate PGLS with range size
Slope t Slope t
Body size 1.086 2.469* 1.067 2.405*
Clutch size − 0.167 − 2.239* − 0.176 − 2.338*
Trophic level 0.050 0.508 0.049 0.496
Dispersal ratio − 0.045 − 1.284 − 0.045 − 1.303
Nest type 0.203 0.506
Nest site 0.068 0.359 0.264 1.634
Habitat specificity − 0.089 − 1.088 − 0.155 − 1.639
Geographic range size − 0.402 3.494***
Flocking 0.068 0.249 0.034 0.122
Migrant − 0.204 − 0.678 − 0.259 − 0.837
Hunting vulnerability 0.475 3.498*** 0.469 3.409**
Human population density 0.001 2.597* 0.003 3.766***
Temperature − 0.013 − 0.753 − 0.012 − 0.436
NDVI − 1.160 − 1.203 − 4.42 × 10−5 − 0.314
Elevation 6.94 × 10−5 0.626 1.325 1.045
  1. * p < 0.05; ** p < 0.01; *** p < 0.001