Bacterial abundance in study streams.

<p>(A) Mean total bacterial abundance (based on DAPI counts) by stream for each date. (B) Mean denitrifier abundance (ratio of <i>nosZ</i>: 16S rRNA copy number) by stream for each date. Pre-drying indicates LWD had flow; dry, no flow; post-drying, flow returned. Letters indicate significant differences (p<0.05) based on Tukey's <i>post hoc</i> multiple comparisons. Error bars indicate +1 SE.