Appendix C. Set of pairwise comparisons (i.e., direct effects) resulting from significant linear regressions.
TABLE C1. Set of pairwise comparisons (i.e., direct effects) resulting from significant linear regressions (P < 0.05) after reducing models with strong outliers. Only variables found to be significantly related to land-cover and/or biota, and thus appropriate for path analysis, are included. IV, DV codes are available in Appendices A and B.
Categories |
Independent variable (IV) |
Dependent variable (DV) |
Direction (+ / -) |
Coeff. Det (r2) |
P value |
LC->G |
Fo60 |
ΔIR |
+ |
0.732 |
0.002 |
LC->G |
Fo60 |
d |
+ |
0.579 |
0.011 |
LC->H |
Fo120 |
mnTT |
- |
0.545 |
0.015 |
LC->S |
Fo120 |
subOM |
- |
0.724 |
0.002 |
LC->B |
Fo90 |
NG |
- |
0.556 |
0.013 |
LC->B |
Fo90 |
SC |
- |
0.411 |
0.046 |
LC->B |
Focorr |
- |
0.422 |
0.042 |
|
LC->B |
Focorr |
CF |
- |
0.456 |
0.032 |
LC->G |
Urb120 |
d |
- |
0.642 |
0.005 |
LC->G |
Urb120 |
w:d |
+ |
0.650 |
0.005 |
LC->S |
Urb120 |
SubOM |
+ |
0.532 |
0.017 |
LC->B |
Urb60 |
NG |
+ |
0.564 |
0.012 |
LC->B |
Urb90 |
SH |
+ |
0.893 |
<0.001 |
LC->B |
Urb90 |
SC |
+ |
0.541 |
0.015 |
LC->B |
Urb90 |
Midge |
+ |
0.627 |
0.006 |
LC->G |
Ag60 |
Bh1 |
+ |
0.404 |
0.018 |
LC->G |
Ag60 |
ΔIR |
- |
0.484 |
0.025 |
LC->H |
Ag90 |
mnTT |
+ |
0.678 |
0.003 |
LC->H |
Ag120 |
RCslp |
- |
0.446 |
0.035 |
LC->H |
Ag120 |
mnTT |
+ |
0.778 |
<0.001 |
LC->G |
Ag120 |
w |
- |
0.420 |
0.043 |
LC->E |
Agcorr |
TSSbf |
+ |
0.925 |
0.002 |
LC->E |
agws |
TSSbfIM |
+ |
0.929 |
0.002 |
LC->E |
agcorr |
TSSstorm |
+ |
0.943 |
<0.001 |
LC->E |
agws |
TSSstromIM |
+ |
0.902 |
0.003 |
LC->B |
Ag60 |
Fish d |
- |
0.642 |
0.005 |
LC->B |
agcorr |
NA |
+ |
0.489 |
0.024 |
LC->B |
agcorr |
SC |
- |
0.466 |
0.03 |
LC->B |
agcorr |
Midge |
- |
0.508 |
0.021 |
LC->B |
agcorr |
Mac P |
- |
0.468 |
0.029 |
H->G |
mnTT |
Fr |
+ |
0.464 |
0.030 |
H->G |
rcslp |
w |
+ |
0.505 |
0.021 |
H->S |
rcslp |
D50 |
+ |
0.569 |
0.012 |
H->B |
rcslp |
CF |
+ |
0.407 |
0.047 |
H->B |
Qbase |
MacDen |
- |
0.558 |
0.013 |
H->B |
qbase |
midge |
- |
0.453 |
0.033 |
G->S |
ΔIR |
subOM |
- |
0.464 |
0.030 |
G->S |
w |
SubD50 |
+ |
0.500 |
0.022 |
G->S |
d |
SubOM |
- |
0.530 |
0.017 |
G->S |
wd |
SubD50 |
+ |
0.420 |
0.043 |
G->S |
wd |
Subfines |
- |
0.448 |
0.034 |
G->B |
Fr |
Fish herb |
+ |
0.476 |
0.027 |
G->B |
Bh1 |
FishDen |
- |
0.500 |
0.022 |
G->B |
Bh1 |
- |
0.431 |
0.039 |
|
G->B |
d |
Fish herb |
- |
0.447 |
0.035 |
G->B |
wd |
Fish herb |
+ |
0.419 |
0.043 |
G->B |
d |
SH |
- |
0.528 |
0.017 |
G->B |
wd |
SH |
+ |
0.654 |
0.005 |
E->B |
TSSbftot |
FishTR |
- |
0.980 |
<0.001 |
E->B |
TSSbftot |
NA |
+ |
0.784 |
0.019 |
E->B |
TSSbfIM |
FishTR |
- |
0.917 |
<0.001 |
E->B |
TSSbfIM |
Fishden |
+ |
0.682 |
0.043 |
E->B |
TSSstmtot |
FishTR |
- |
0.986 |
<0.001 |
E->B |
TSSstmtot |
NA |
+ |
0.757 |
0.024 |
E->B |
TSSstmIM |
FishTR |
- |
0.929 |
0.002 |
E->B |
TSSstmIM |
FishDen |
+ |
0.658 |
0.05 |
E->B |
TSSstmIM |
+ |
0.719 |
0.033 |
|
E->B |
TSSstmIM |
NA |
+ |
0.872 |
0.006 |
S->B |
Subfines |
Fish herb |
- |
0.485 |
0.025 |
S->B |
SubOM |
NG |
+ |
0.412 |
0.045 |
S->B |
D50 |
MacDen |
+ |
0.570 |
0.012 |
S->B |
D50 |
CG |
+ |
0.588 |
0.010 |
S->B |
D50 |
CF |
+ |
0.476 |
0.027 |
S->B |
SubOM |
SH |
+ |
0.478 |
0.027 |
S->B |
SubOM |
SC |
+ |
0.520 |
0.019 |
S->B |
subfines |
MacDen |
- |
0.637 |
0.006 |
S->B |
subfines |
CG |
- |
0.695 |
0.003 |
B->B |
cos |
MacTR |
- |
0.490 |
0.024 |
B->B |
NA |
midge |
- |
0.405 |
0.048 |