Kevin D Burke, University of Wisconsin Madison, Nelson Institute for Environmental Studies, Madison, WI, United States, John W Williams, University of Wisconsin, Madison, WI, United States, Simon Brewer, University of Utah, Department of Geography, Salt Lake City, UT, United States, Walter Finsinger, University of Montpellier II, Montpellier, France, Thomas Giesecke, Georg-August-Universitaet Goettingen, Goettingen, Germany, David J Lorenz, University of Wisconsin-Madison, Madison, WI, United States and Alejandro Ordonez, Aarhus University, Aarhus, Denmark