The World is Green

Nelson G. Hairston, Frederick E. Smith, and Lawrence B. Slobodkin (1960)

But why is the world green? The classic "HSS" (that is, Hairston, Smith and Slobodkin) paper addresses this central question of ecology head-on, discussing the factors that limit populations and illustrating a vibrant, elegantly interacting system of plants, herbivores, predators, and decomposers.