Table 5. Parameter estimates for Eqs. 1–5, which quantify the relationships between average forested widths of riparian buffers, percent riparian forest cover, instream habitat, and young trout populations in north Georgia. All models and parameter estimates are significant at α = 0.05. The 95% confidence interval (C.I.) is calculated as Parameter Estimate ± 1.96 · S.E. (Sokal and Rohfl 1995).
| |
| |
Equation number
|
Response variable
|
Year
|
Model r2
|
Intercepts/ Predictor variables
|
Parameter estimate (P.E.)
|
Standard error (S.E.)
|
95% Confidence interval (C.I.)
|
| |
1
|
ABW
|
1998
|
0.83
|
Intercept
|
0.7438
|
2.2172
|
-3.60–5.09
|
|
|
|
|
%RC
|
0.2995
|
0.0344
|
0.23–0.37
|
|
|
|
|
|
|
|
|
2
|
%RC
|
1998
|
0.83
|
Intercept
|
8.8133
|
6.3828
|
-3.70–21.32
|
|
|
|
|
ABW
|
2.7582
|
0.3165
|
2.14–3.38
|
|
|
|
|
|
|
|
|
3
|
M7DAMT
|
2001
|
0.73
|
Intercept
|
32.9672
|
1.5270
|
29.97–35.96
|
|
|
|
|
Arcsine [(%RC/100)0.5]
|
-4.4827
|
0.8149
|
-6.08– -2.89
|
|
|
|
|
ELEV
|
-0.0127
|
0.0023
|
-0.02– -0.01
|
|
|
|
|
|
|
|
|
|
|
2002
|
0.70
|
Intercept
|
33.7122
|
1.5923
|
30.59–36.83
|
|
|
|
|
Arcsine [(%RC/100)0.5]
|
-4.7164
|
0.8497
|
-6.38– -3.05
|
|
|
|
|
ELEV
|
-0.0118
|
0.0024
|
-0.02– -0.01
|
|
|
|
|
|
|
|
|
|
|
2003
|
0.57
|
Intercept
|
29.9048
|
1.8315
|
26.32–33.49
|
|
|
|
|
Arcsine [(%RC/100)0.5]
|
-3.2788
|
0.9855
|
-5.21– -1.35
|
|
|
|
|
ELEV
|
-0.0110
|
0.0028
|
-0.02– -0.01
|
|
|
|
|
|
|
|
|
4
|
REI
|
2001
|
0.40
|
Intercept
|
54.3744
|
4.2204
|
46.10–62.65
|
|
|
|
|
Arcsine [(%RC/100)0.5]
|
-8.4651
|
3.1447
|
-14.63– -2.30
|
|
|
|
|
MRV
|
-5.3289
|
2.2160
|
-9.67–-0.99
|
|
|
|
|
|
|
|
|
5
|
Log10(YTB)
|
2001 & 2002
|
0.72
|
Intercept
|
10.0440
|
1.5130
|
7.08–13.01
|
|
|
|
|
M7DAMT
|
-0.2840
|
0.0480
|
-0.38– -0.19
|
|
|
|
|
REI
|
-0.0640
|
0.0221
|
-0.11– -0.02
|
|
|
|
|
MRD
|
-0.0140
|
0.0039
|
-0.02– -0.01
|
|
| |
|