Amanda Gorton conducted a common garden study in Minnesota of 26 populations of common ragweed spanning a latitudinal range from Minnesota to Louisiana. She was particularly interested in how populations responded to future patterns of rainfall predicted under climate change. She simulated both an increase and decrease in rainfall across her experimental site using rainout shelters (and redistribution of rainfall). Her results have implications for range shifts of populations with climate change. Check out her paper in “early view” at Oecologia!