Experimental droughts: Are precipitation variability and methodological trends hindering our understanding of ecological sensitivities to drought?

David Lewis Hoover, USDA Agriculture Research Service, Fort Collins, CO, United States, Kevin Wilcox, University of Oklahoma, Department of Microbiology and Plant Biology, Norman, OK, United States and Kristina Young, Northern Arizona University, School of Forestry, Flagstaff, AZ, United States