The Design of Living Technologies for Waste Treatment - by John Todd, Beth Josephson:
H.T. Odum (1971), the father of ecological engineering, articulated the need to view species, nature and technology in a radically new way. He stated: "The inventory of species of the earth is really an immense bin of parts available to the ecological engineer. A species evolved to play one role may be used for a different purpose in a different kind of network as long as its maintenance flows are satisfied."
Energy Systems Language: https://en.wikipedia.org/wiki/Energy_Systems_Language