books.google.com - Food webs are diagrams depicting which species interact or in other words, who eats whom. An understanding of the structure and function of food webs is crucial for any study of how an ecosystem works, including attempts to predict which communities might be more vulnerable to disturbance and therefore...http://books.google.com/books/about/Food_Webs.html?hl=es&id=tjHOtK4amfQC&utm_source=gb-gplus-shareFood Webs