Paul Ehrlich is the Bing Professor of Population Studies, president of the Center for Conservation Biology, at Stanford University, and adjunct professor at University of Technology, Sydney. His research is in population biology, which includes ecology, evolutionary biology, behavior, human ecology, and cultural evolution.
Ehrlich has carried out field, laboratory, and theoretical research on a wide array of problems ranging from the dynamics and genetics of insect populations, studies of the ecological and evolutionary interactions of plants and herbivores, and the behavioral ecology of birds and reef fishes, to experimental studies of the effects of crowding on human beings and studies of cultural evolution. He is heavily involved in the Millennium Alliance for Humanity and the Biosphere and is author and co-author of more than 1000 scientific papers and articles and over 40 books.
Ehrlich is a fellow of the American Academy of Arts and Sciences, the American Entomological Society, and the Beijer Institute of Ecological Economics, and a member of the National Academy of Sciences and the American Philosophical Society. He is a foreign member of the Royal Society, an honorary member of the British Ecological Society, and an honorary fellow of the Royal Entomological Society.
Among his many other honors are the Royal Swedish Academy of Sciences, Crafoord Prize in Population Biology, and the Conservation of Biological Diversity (an explicit replacement for the Nobel Prize).