Table 1. Range of habitat variable variation between sites at the lowland plantation forest area.

Descriptive statistics of percentage values of the studied variables are shown. Canopy openness represents openness of tree canopy cover above every trap. Oak and spruce represent their percentage of tree species composition. Plants, mosses and shrubs represent percentage of cover at the understory level. Except for canopy openness, all other variables were measured at patches of 10, 20 and 40 m radius surrounding the traps. Other coniferous and deciduous trees and bare soil were excluded because of multi-collinearity.

Predictor	Radius (m)	Mean ± S.E. (%)	Min-Max (%)
Canopy openness		9.44 ± 0.36	6.74–14.46
Oak	10	44.60 ± 8.22	0–100
Spruce		42.17 ± 7.99	0–100
Plants		44.60 ± 7.23	0–100
Mosses		8.67 ± 3.22	0–60
Shrubs		4.10 ± 1.99	0–45
Oak	20	43.23 ± 7.56	0–95
Spruce		38.87 ± 7.07	0–100
Plants		47.07 ± 6.39	0–100
Mosses		8.10 ± 2.95	0–60
Shrubs		5.13 ± 1.89	0–40
Oak	40	38.77 ± 6.58	0–95
Spruce		38.83 ± 5.98	0–90
Plants		48.30 ± 5.61	10–100
Mosses		9.47 ± 3.37	0–75
Shrubs		5.73 ± 1.90	0–40