Fig. 1. Map of the study region, showing location of the stream and road transects. Stream transects are marked by thickened grey stream and numbered in grey as: (1) upstream Streets Creek, (2) downstream Streets Creek, (3) upper Avondale Creek, (4) lower Avondale Creek upstream, (5) lower Avondale Creek downstream. Road transects are marked as open sections of road and numbered in black as: (1) upstream Streets Creek, (2) downstream Streets Creek, (3) upper Avondale Creek, (4) lower Avondale Creek.