Sites used in this study.

Classification into native- and exotic-dominated was based on the proportion of native plant cover in 2007, the first year of the experiment. Reference sites were native-dominated tallgrass prairies that were not grazed in this study but burned in their entirety on a three year rotation. Reference sites were not treatments per se, rather they were used to compare how the two grazing treatments differed from remnant, native-dominated, tallgrass prairies. See methods for explanation of the two grazing treatment types. Stocking rate is in Animal Unit Months per hectare (AUM ha-1).