books.google.it - Ecologists, although they acknowledge the problems involved, generally conduct their research on too few species, in too small an area, over too short a period of time. InThe Balance of Nature?,a work sure to stir controversy, the distinguished theoretical ecologist Stuart L. Pimm argues that ecology...http://books.google.it/books/about/The_Balance_of_Nature.html?hl=it&id=OAcHdcvUKUcC&q=grazers&utm_source=gb-gplus-shareThe Balance of Nature?
