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