ACKNOWLEDGMENTS 



Thanks go to the Mike McKeever family who made field work more pleasant 

 than it might have been, and to Todd and Angie McKeever for collecting 

 climate and soil moisture information. Taxonomic assistance from Dave 

 Ramsden and Klaus Lackschewitz was much appreciated. Technical editing 

 was performed by William Phippen, Carol Kopec, and Larry Thompson of DNRC. 

 Graphs and mapping were done by June Virag of DNRC's Cartography Bureau. 



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