As each order of consumers eat other organisms, energy that transfers increases decreases stays the same.

As each order of consumers eat other organisms, energy that transfered decreases. This is due to the fact an organism requires energy to move and stay alive before it's inevitable death/kill, hence why a consumer would require to eat several of the organisms, or attempt to kill another consumer of it's size or bigger.

Yes he thought they should be left to chance why, because he thought that was the best thing to do