When the rocks are removed from a desert's ecosystem, the animals that depend on those rocks for homes would be in trouble. If these animals died due to predators and a lack of homes, then the other animals (predators) that depend on them for food would start to need other sources of food. This would cut into another predator's food supply and so on.
Blue whale, mushroom - heterotrophs
rosebush, algae, pine tree - autotrophs
I believe it was just called "the rule of law"
