Project Directions: Using EcoBeaker, develop a laboratory similar to those included in the Lab Guide, to illustrate an ecological concept for which no Lab exists in the Guide. The lab should be written up similar to those in the current guide, and appropriate for use in an undergraduate ecology course (not necessarily limited to general ecology). An example would be a lab on predator-prey cycles, which is not included among the current labs, or a lab to compare the results of a spatially-explicit simulation to more aggregated models such as those in Populus.