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
(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, 2013


1991, 1993

2004, 2005

2006, 2007