Any email contact would be useful. After the Woodrow Wilson Biology Teachers program at Princeton in 1991, Howard Waterman, a public school teacher from Washington State, expanded his ecosystem in a shoebox program to include some of the '91 Woodies.
Teachers jointly agree on data collection at different locations and times.
Howard had carefully matched ecosystems in his original project so that students had info on a variety of very different areas. After email data exchange all year long, students mailed each other a very carefully selected sample from their location - pressed autumn leaves, sand, insect collections, etc. An example of the difficult problems students had to solve was the snowball from Alaska situation. If you would respond to me privately, we can begin to set parameters for exchange. I will be glad to contact Howard for other ideas his project has generated.