Presents the science of preserving biodiversity and sustaining the earth. Draws on and synthesizes information from the fields of ecology, evolution, genetics, philosophy, economics, sociology and political science. Emphasis on the development of strategies for preserving populations, species, biological communities and entire ecosystems in the face of growing human populations and our impact on the environment. The course brings scientific principles and theory to bear on problems of management for preserving the richness of life on earth. This is a graduate level course with three hours of lecture/seminar per week. Prerequisite: Admission to the M.S. program in biology. Not offered every semester.