Affiliation: | 1. Respectively, Research Forester (Thompson), Rocky Mountain Research Station, USDA Forest Service, P.O. Box 7669, Missoula, Montana 59801;2. Professor (Sessions) and Associate Professors (Boston, Skaugset), Department of Forest Engineering, Resources and Management, Oregon State University, Corvallis, Oregon 97331;3. Economist (Tomberlin), National Marine Fisheries Service, Silver Spring, Maryland 20910. |