Professional experience

Position	Employer	Dates
Research Assistant	Dept. Forest Economics, SUNY, Syracuse, NY	1967-1969
Research Assistant and Junior Specialist	School of Forestry, University of California, Berkeley	1969 -1971
Forestry Officer	Food and Agriculture Organization of the United Nations, Rome	1971-1975
Assistant Professor	University of Wisconsin-Madison, Dept. of Forestry	1975-1978
Associate Professor	University of Wisconsin-Madison, Dept. of Forestry	1978-1982
Professor	University of Wisconsin-Madison, Dept. of Forest Ecology and Management, and Institute of Enviromental Sciences	1982-2000
Class of 1933 Bascom Professor	Idem.	2004-present
John N. McGovern WARF Professor	Idem.	2000-present
Professeur Associé	École Nationale du Génie Rural, des Eaux et des Forêts, Nancy, France	1993
Visiting Professor	Instituto per le Applicazioni del Calcolo, Centro Nazionale delle Ricerche, Rome, Italy	1981, 1982
Research Scholar	International Institute for Applied Systems Analysis, Laxenburg, Austria	1983
Consultant (short term)	U.N. Food and Agriculture Organization projects in Iraq, Malaysia, Indonesia, Rome. International Tropical Timber Organization, Yokohama, Japan. World Bank, Nigeria. Seneca Associates LLC, USA. Scion Research, New Zealand	1976, 1978, 1980, 1981, 1984, 1985, 1988, 1989 1990 1991, 1993 2004, 2005 2006,2007