The sun starts out the food chain then comes the plant.Crabs,Shrimp,and Coypo all eat the plant. The fish eats the shrimp. The crab is eaten by the raccoon. The fish is eaten by the Alligator and the Hawk. The fish is also eaten by the man. The Alligator eats the Coypo and so does the Hawk. So the Hawk,the Alligator,and the man are at the top of the food chain.
If one thing, say the Hawk, was taken out of the food web/died there would be an over population. The Hawk eats the Coypo, the fish, shrimp(ect.). If it just left there would be a over population in these areas. If the plant was taken out of the food web everything would slowly dye. The coypo eats the plant as well as the shrimp and the crab. If they dye than the fish and the raccoon would slowly dye as well and so on and so forth.