Dan Hernández, Associate Professor of Biology, and Mark McKone, Towsley Professor of Biology, presented two talks at the annual meeting of the Ecological Society of America in Portland, Oregon in August. The titles were "Experimental community assembly with and without dominant grasses in tallgrass prairie: impact on higher trophic levels" presented by McKone; and "Experimental community assembly with and without dominant grasses in tallgrass prairie: biotic and abiotic effects on litter decomposition" presented by Hernández. The presentations described results from a long-term experiment in the Upper Arb prairies.