We held a workshop at Kellogg Biological Station (KBS) LTER April 19-22, 2007. Our primary objectives were to: 1) explore effects of changes in terrestrial plant species composition on aquatic ecosystem function across sites within the LTER Network; 2) initiate a cross-site synthesis project with other LTER graduate students; 3) establish a framework for future research collaborations; and 4) present findings at international meetings and publish findings in a peer-reviewed journal, such as Ecosystems or Frontiers in Ecology and the Environment.