Lawrence R. WalkerLawrence R. Walker is Professor Emeritus in the School of Life Sciences, University of Nevada, Las Vegas. His research focuses on succession, disturbance ecology and restoration. He taught ecology, conservation biology and scientific writing for thiry years. He has published ten previous books, is an ISI Highly Cited Researcher and was the Wilder Chair in Botany at the University of Hawaii (2009–2010). Read More Read Less