Ok, I think I found a way to make it work. If you add the parameter and the equation to the original species table then change the species composition of the table it seems to work. I am going to print out the table that Dr. Lazar recently created and after adding the parameter "num trees" I will build the Zoar Valley species table. Cross your fingers everybody! I will post whether or not I am successfull later tonight.

~Erin K. Pfeil