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Table 3 Tests for phylogenetic signal of Blomberg’s K for the centroid values of principal environmental components (PC1, PC2) per cluster (A, B, C), and the median values of contributing variables (altitude, bioclim 1–19) per species, over 100 Bayesian trees of Bulbophyllum clade C (derived from [59])

From: Frequent but asymmetric niche shifts in Bulbophyllum orchids support environmental and climatic instability in Madagascar over Quaternary time scales

Variable Median K Median P % of trees not rejecting H0 (P > 0.05)a
PC1 0.443 0.030 16
PC2 0.328 0.295 100
Altitude 0.354 0.297 99
Bio1 = Annual Mean Temperature 0.366 0.145 93
Bio2 = Mean Diurnal Range 0.399 0.098 93
Bio3 = Isothermality 0.395 0.101 93
Bio4 = Temperature Seasonality 0.319 0.340 100
Bio5 = Max Temperature of Warmest Month 0.383 0.121 87
Bio6 = Min Temperature of Coldest Month 0.355 0.218 96
Bio7 = Temperature Annual Range 0.371 0.120 87
Bio8 = Mean Temperature of Wettest Quarter 0.366 0.220 99
Bio9 = Mean Temperature of Driest Quarter 0.353 0.230 98
Bio10 = Mean Temperature of Warmest Quarter 0.377 0.170 97
Bio11 = Mean Temperature of Coldest Quarter 0.363 0.154 92
Bio12 = Annual Precipitation 0.420 0.198 100
Bio13 = Precipitation of Wettest Month 0.343 0.231 100
Bio14 = Precipitation of Driest Month 0.331 0.370 100
Bio15 = Precipitation Seasonality 0.331 0.319 100
Bio16 = Precipitation of Wettest Quarter 0.364 0.236 99
Bio17 = Precipitation of Driest Quarter 0.335 0.372 100
Bio18 = Precipitation of Warmest Quarter 0.277 0.749 100
Bio19 = Precipitation of Coldest Quarter 0.338 0.305 100
  1. aPercentages of trees not rejecting the null hypothesis of random signal for given variable