We thank James Jarvis, members of the Bernot laboratories, Jamie
Lau, Julia Backus, Nicole Woodall and Dr. Gary Dodson for support and
the Indiana Water Resources Research Consortium sub-award from
the US Department of Interior, US Geological Survey as part of the federalWater
Resources Research Act of 1984 (Program 104B) for funding as
well as four anonymous reviewers of earlier versions of thismanuscript
for helpful comments.