Variable code
Description
Correlation of habitat variables
with CCA
with CCA
Axis I
Axis II
Local level
SPR (trees)
species richness of trees
-0.14
0.11
STREAM
presence/absence of freshwater streams
0.31
-0.14
LOCGRASS
% cover of grass at site level
-0.24
-0.13
DOWN
amount of downed wood
0.50
0.00
DEAD
no. standing dead trees
0.57
0.02
LOTS
no. house lots
-0.61
-0.05
FEED (+/-)
presence of bird feeders
-0.38
0.18
BOX (+/-)
presence of nest boxes
-0.13
0.15
D<30 (<30 dbh)
no. small deciduous treesa
0.46
0.08
D30–60 (30–60+ dbh)
no. large deciduous treesa
0.37
0.16
C<30 (<30 dbh)
no. small coniferous treesa
0.28
-0.11
C30–60 (30–60+ dbh)
no. large coniferous treesa
0.37
0.08
SD<2 (<2 m)
no. small deciduous shrubsa
-0.36
-0.17
SD>2 (>2 m)
no. large deciduous shrubsa
-0.12
0.13
SC<2 (<2 m)
no. small coniferous shrubsa
-0.44
0.09
SC>2 (>2 m)
no. small coniferous shrubsa
-0.21
0.10
BE<2 (<2 m)
no. small berry shrubsa
0.29
0.02
BE>2 (>2 m)
no. large berry shrubsa
0.37
0.13
BE<30 (<30 dbh)
presence/absence of small berry trees
-0.25
0.01
INTERSTN (1–3)
1 road, 2 road, or 3 busy intersection
-0.36
-0.09
ELEV
elevation (m)b
0.30
-0.01
Landscape level
PARK260
park area by distance index, 0–260 m scale
0.56
-0.07
PARK500
park area by distance index, 0–500 m scale
0.62
-0.11
PARK760
park area by distance index, 0–760 m scale
0.68
-0.14
PARK1000
park area by distance index, 0–1000 m scale
0.72
-0.15
CONIF500
% cover coniferous trees < 500 m
0.55
0.05
DECID500
% cover deciduous trees <500 m
0.76
0.12
GRASS500
% cover grasses <500 m
0.02
-0.02
IMPERV500
% cover impervious <500 m
-0.81
0.00