TABLE 4.

Pearson Correlation of Hydrologic Metrics With Measures of Urbanization, Non-Urban Forest Cover, and Benthic Index of Biological Integrity Scores in 16 Stream Basins.

	arcsin sqrt (%Total Impervious Area)		arcsin sqrt (%Urban)		arcsin sqrt (%Forest)		Benthic Index of Biological Integrity
	r	p	r	p	r	p	r	p
Benthic Index of Biological Integrity	−0.733	0.001	−0.748	0.001	0.731	0.001
log (Low Pulse Count)	0.530	0.035	0.443	0.086	−0.450	0.080	−0.664	0.005
log (Low Pulse Duration)	−0.587	0.017	−0.589	0.016	0.559	0.025	0.766	0.001
Low Pulse Range	0.087	0.750	−0.085	0.754	0.009	0.973	−0.036	0.896
log (High Pulse Count)	0.700	0.003	0.757	0.001	−0.716	0.002	−0.844	<0.0001
log (High Pulse Duration)	−0.638	0.008	−0.638	0.008	0.634	0.008	0.801	0.0002
High Pulse Range	0.772	<0.001	0.807	<0.001	−0.759	0.001	−0.854	<0.0001
log (Fall Rate)	0.023	0.932	0.048	0.859	−0.003	0.990	−0.317	0.231
log (Rise Rate)	0.001	0.997	0.020	0.941	0.024	0.931	−0.265	0.321
Fall Count	0.426	0.100	0.372	0.156	−0.402	0.123	−0.420	0.106
Rise Count	0.543	0.030	0.506	0.046	−0.530	0.035	−0.529	0.035
Flow Reversals	0.688	0.003	0.681	0.004	−0.696	0.003	−0.652	0.006
TQmean	−0.527	0.036	−0.455	0.077	0.491	0.053	0.685	0.003
R-B Index	0.736	0.001	0.645	0.007	−0.683	0.004	−0.703	0.002
Seven-day minimum flow	−0.266	0.319	−0.188	0.485	0.245	0.360	0.057	0.835
Date of annual daily minimum	−0.364	0.165	−0.296	0.266	0.381	0.145	0.475	0.063

Note: Values given in boldface indicate significance based on Benjamini and Hochberg False Discovery Rate control (p=0.05; k=15) (Verhoeven et al., 2005).