Fig. 4. The relationship between (A) dominant frequency, (B) call rate, and (C) body size, and perpendicular distance to the road for L. rheocola within 55 m of the road on the upstream Streets Creek transect. Graphs show the regression line with upper and lower 95% confidence limits. The x-axis shows cubed distance to the road; the range of the untransformed data is 15-54 m.