Results of Wilcoxon tests comparing average hydraulic conditions during low (0.42 m 3 s -1 ), moderate (5.32 m 3 s -1 ), moderate-high, (32.28 m 3 s -1 ), and high (361.89 m 3 s -1 ) flow conditions in a study segment in the San Saba River, TX at hotspots of richness and diversity (Shannon-Wiener and Simpson’s) versus non-hotspot sites in the study segment.

Hotspots represent sites that hosted significantly (>95% confidence) higher species diversity or richness compared to neighboring sites within the segment. In the upper San Saba River, stable conditions may promote and protect diverse and species-rich communities. Asterisks indicate significant differences.