What is the difference between small, controlled lab experiments versus an ecosystem-scale experiment?

The main difference between small, controlled lab experiments and an ecosystem-scale experiment is the scope of the experiment. Small, controlled lab experiments are typically conducted in a laboratory setting and involve a limited number of variables that can be easily manipulated and monitored. An ecosystem-scale experiment, on the other hand, is conducted in a natural environment and involves a much larger number of variables that are more difficult to control and monitor. Additionally, ecosystem-scale experiments often involve a longer time frame and a larger geographic area.