Ecology:The Experimental Analysis of Dis: The Experimental Analysis of Distribution and Abundance About the Author Charles Krebs is Emeritus Professor of Zoology at the University of British Columbia in Vancouver. He received his B.S. from the University of Minnesota and earned both his M.A. and Ph.D. from the University of British Columbia. In addition to teaching ecology for 40 years, he works extensively on the population of rodents in Northern Canada, the United States and Australia, trying to understand the mechanisms behind population fluctuations. He has published three ecology textbooks including Ecology: The Experimental Analysis of Distribution and Abundance, Sixth Edition and Ecological Methodology, Second Edition both published by Benjamin Cummings.