Download Appendix 1 Description and sampling methods of the 23

Appendix 1 Description and sampling methods of the 23 variables recorded at each of the 100
trapping points.
N.
Variable
Sampling Methods
3.14 m2 ring (1-m radius) centred on the trap
1
Woody stem density (WSD)
Live woody stem (< 2 m height) count at ground level
within the ring
2
Number of woody species
Woody species (< 2 m height) count within the ring
(NWS)
3
High herbaceous stem density
High herbaceous (> 40 cm) stem count within the ring
(HHSD)
4
Litter-soil depth (LSD)
Depth of penetration into litter-soil material of a hand-held
core sampler with 2.0 cm diameter barrel. Average of 4
replicates
2 perpendicular 10 x 2 (20 m2) arm-length transects centred on trap
5
Percentage canopy closure (CC)
Percentage of points with overstory vegetation, from 21
vertical ocular tube (2.6 cm) sightings along the central
line of the 2 transects
6
Shrub cover (SC)
Same as point 5 for presence of shrub level vegetation
7
Thickness of woody vegetation
Average number of contacts at ground level (trees and
(TWV)
shrubs) within the 2 transects
Soil surface exposure (SSE)
Percentage of points with soil exposure, from 21 step-
8
point samples along the central line of the 2 transects
9
Rock cover (RC)
Same as point 8, for percentage of points with rocks
10
Herbaceous cover (HC)
Same as point 8, for percentage of points with herbaceous
vegetation
10-m radius circular plot
11
Overstory tree size (OTS)
Average diameter (cm) of nearest overstory tree, in
quarters around trap
12
Overstory tree dispersion (OTD)
Average distance (m) from trap to nearest overstory tree,
in quarters
13
Understory tree size (UTS)
Average diameter (cm) of nearest understory tree, in
quarters around trap
14
15
Understory tree dispersion
Average distance (m) from trap to nearest understory tree,
(UTD)
in quarters
Tree stump density (TSDe)
Average number of tree stumps  7.50 cm in diameter,
per quarter
16
Tree stump size (TSS)
Average diameter (cm) of nearest tree stump, in quarters
around trap
17
Tree stump dispersion (TSDi)
Average distance (m) to nearest tree stump, in quarters
18
Fallen log density (FLDe)
Average number of fallen logs  7.50 cm in diameter, per
quarter
19
Fallen log size (FLS)
Average diameter (cm) of nearest fallen log, in quarters
around trap
20
Fallen log dispersion (FLDi)
Average distance (m) to nearest fallen log, in quarters
21
Fallen log abundance (FLA)
Average total length ( 50 cm) of fallen logs, per quarter
22
Dead wood pile density (WPDe)
Average number of dead wood piles, per quarter
23
Dead wood pile dispersion
Average distance (m) to nearest dead wood pile, in
(WPDi)
quarters