Results/Conclusions Wetland plant assemblages in less intensely managed semi-native pastures had significantly higher species richness (p=0.001) and significantly different composition (p=0.001) than intensely managed improved pasture wetlands. Composition and relative abundance of insect communities were only marginally different between these pasture types. However, multivariate analyses revealed strong correlations between plant assemblage structure and insect community structure when matrices were overlain using canonical correspondence analysis (Axis 1, r2=0.70). Insect species richness increased significantly with vegetation height (r = 0.412), and total insect abundance rose significantly as insect species richness increased (r = 0.43). These analyses suggest that vegetation height and structure provide habitat complexity that supports insect richness and abundance. Because vegetation richness and composition is strongly influenced by pasture management, our results suggest that pasture management indirectly affects insect community structure and abundance by directly affecting plant assemblages. Ongoing experimental work is examining the effects of grazing pressure and fire suppression on these wetlands using cattle exclosures and fire treatments.