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Table 3 Principal component analysis components (PC) for habitat variables present at real and random nest sites for Dicrurus hottentottus

From: Evaluation of nest site preferences of a nest dismantler, the Hair-crested Drongo (Dicrurus hottentottus) in Dongzhai National Nature Reserve of central China

Variable PC1 PC2 PC3 PC4 PC5
Basal area 0.87 0.01 0.10 0.01 0.01
Overstory 0.81 −0.11 −0.14 0.24 0.05
Slope −0.16 0.79 0.15 0.07 0.12
Litter depth 0.07 0.74 0.01 0.40 −0.07
Midstory 0.06 0.65 0.15 −0.05 0.37
Litter 0.46 0.60 0.32 −0.13 0.25
Herb 0.05 −0.25 −0.81 0.20 −0.30
CWD 0.06 0.20 0.79 0.14 −0.25
Wood −0.55 −0.24 0.56 0.37 0.16
Ground cover −0.03 0.10 −0.11 0.88 −0.01
Water −0.17 0.09 −0.15 −0.70 −0.16
Understory −0.04 0.18 0.02 0.16 0.80
Canopy cover 0.58 0.20 −0.03 −0.01 0.66