Dr. Truett has worked much of the last 25 years conducting and managing research programs related to the response of arctic wildlife and habitats to industrial development. During much of this time he worked as senior biologist with LGL Ecological Research Associates and, later, as owner of Truett Research. Currently he is senior biologist with the Turner Endangered Species Fund. He has published numerous articles related to his arctic work and to an area of personal interest--environmental history. In the latter field, he has published two books, Land of Bears and Honey with D.W. Lay, from the University of Texas Press, 1984 and Circling Back: Chronicle of a Texas River Valley, from the University of Iowa Press, 1996. Dr. Johnson has conducted and managed research projects on marine and terrestrial birds and mammals for the past 30 years in arctic and subarctic Alaska, Canada, Russia, Greenland, and Svalbard. Since 1975, he has worked as a research ecologist with LGL Limited on projects related to impacts of industrial development on wildlife and their habitats. Currently he is Senior Vice President of LGL Limited with management and research responsibilities in Alaska, Canada, and Russia. He has published numerous scientific papers and reports related to his arctic work and is the co-author with D.R. Herter of a reference book on arctic birds, The Birds of Beaufort Sea from BP Exploration (Alaska), Inc., 1989.