- 1985a* Health and Nutrition of Women and Children
through the Ages. New York Academy of Sciences (co-organizer
with L. Osmundsen)
- 1985b* New Information from Old Collections.
American Association of Museums (co- organizer with F. Norik)
- 1986* Planning for Conservation. American Association
of Museums (co-organizer with G. Gardner)
- 1987* Anthropology is in the Museum. American
Anthropological Association, General Anthropology Division
and American Ethnological Society (co-organizer/chair with
F. Norik)
- 1988 Opportunities for Government Funding of Anthropology.
New York Academy of Sciences (organizer/chair)
- 1989* Amazonian Synthesis: An Integration of Disciplines,
Paradigms, and Methodologies. International Conference,
Wenner-Gren Foundation (organizer/chair) 1990a* Interdisciplinary
Methods for Archaeological Problems. American Association
for the Advancement of Science (co-organizer/chair with
W. Lipe)
- 1990b* Amazonia, A Dynamic Habitat. American
Association for the Advancement of Science (co-organizer/chair
with A. Haller)
- 1990c* Holistic Archaeology: Beyond the Materialist-Idealist
Opposition. Society for American Archaeology (co-organizer/chair
with S. Wilson)
- 1990d* Rethinking Native Amazonia. American
Anthropological Association, General Anthropology Division
- 1991a* The Deterioration of human health under economic
and political development: From Ancient Egypt to USA 1990.
American Association for the Advancement of Science
- 1991b* Geophysical Imaging Systems: From Medical Microcosm
to Outer Space. American Association for the Advancement
of Science (co-organizer with L. Desmond)
- 1991c* Hunter Gatherers in Lowland South America.
American Anthropological Association (co-organizer with
S. Beckerman)
- 1992a* South American Paleoindians. American
Association for the Advancement of Science
- 1992b* Echoes of Conquest in Amazonia. American
Anthropological Association (co-organizer with S. Beckerman)
- 1993* Hunter-gatherers in South America: An Evolutionary
Problem. American Association for the Advancement of
Science
- 1995* The Science of Biodiversity. American
Association for the Advancement of Science (co-organizer
with P. Crane)
- Alternative Models for Social Complexity in Ancient Latin
America . Society for American Archaeology (co-organizer
and co-chair with John Hoopes)
- 1997 Clovis in Context: New Light on the Peopling
of the Americas. Society for American Archaeology (co-organizer
with Juliet Morrow)
- 1999 New Findings on Prehistoric and Ethnohistoric
Societies in Latin America. Central States Anthropology
Association invited session
- 1977* Early Settlement of the Moist Tropical Lowlands.
Society for American Archaeology (invited speaker)
- 1982a* Paleopathology at the Origins of Agriculture.
Wenner-Gren Conference (discussant)
- 1982b* Plant Migration from Amazonia to the Isthmian
Region. International Congress of Americanists (invited
speaker)
- 1982c* Proteins in Amazonia: A Reassessment.
American Anthropological Association (invited speaker)
- 1983* Human Food Preferences and Aversions. Wenner-Gren
Symposium (discussant)
- 1984a* Have Artifacts Will Travel. American Association
of Museums (moderator)
- 1984b Interpretive Issues for Art Museums. New
York State Council on the Arts Workshop
- 1984c West Mexican Sculpture. Fine Arts Museum
of Long Island (discussant)
- 1985a* A Problem of Access. American Association
of Museums (discussant)
- 1985b* The Role of Gender in Precolumbian Art and
Architecture. International Congress of Americanists
(invited speaker)
- 1985c* La Investigacion Arqueologica y Los Cacicazgos
en America. International Congress of Americanists
(speaker)
- 1985d* Definicion Arqueologica de Sistemas Adaptivos
en Sudamerica. International Congress of Americanists
(speaker)
- 1985e* Management of Natural Resources by Indigenous
and Folk Societies in Amazonia. American Anthropological
Association (invited speaker)
- 1985f* Theoretical Context of Archaeological Research.
International Congress on Caribbean Archaeology (invited
speaker)
- 1986 The Application of Remote Sensing to Archaeology.
Center for Remote Sensing, Boston University (trainee and
speaker)
- 1988a* Study of Agrarian Systems: Minimum Data Sets
for Comparative Analysis. American Association for
the Advancement of Science (discussant)
- 1988b* Origins, Adaptations, and Biological Diversity
of Native Amazonians. Museu Goeldi, Belem (invited
speaker)
- 1988c* Early Ceramic Population Lifeways and Adaptive
Strategies in the Caribbean. Society for American Archaeology
(discussant)
- 1988d* Approaches to The Use of Micro-Computers in
Archaeology. Society for American Archaeology (invited
speaker)
- 1988e* Anthropological Problems from the Perspective
of Museums. American Anthropological Association (invited
speaker)
- 1990a* Hunter-Gatherer Lacustrine Adaptations.
Society for American Archaeology (discussant)
- 1990b Economic Catalysts to Ecological Change.
U. of Florida, Tropical Conservation and Development Program
(invited speaker)
- 1990c* Tropical Forest Ecology, The Changing Human
Niche. American Anthropological Association (discussant)
- 1991a* An Archaeological Perspective on Geophysical
Prospection. Society for American Archaeology (invited
speaker)
- 1991b Reuniao Cientifica da Sociedade de Arqueologia
Brasileira. Rio de Janeiro (invited plenary speaker)
- 1991c Workshop on Ecological Change in Northern South
America. Coro, Venezuela (plenary speaker)
- 1991d Sibley Conference on Kingship and Kinship.
University of Texas (plenary speaker)
- 1992a Conference on the Quaternary in Amazonia.
Universidade de Amazonas, Manaus, Brazil (invited plenary
lecturer)
- 1992b* Viewing the Environment through Multiple Lenses.
American Anthropological Association (invited speaker)
- 1993a* The Development of Early Pottery Cultures.
Society for American Archaeology (invited speaker)
- 1993b* A Synthesis of Lowland South America.
Invited Session, Society for American Archaeology (invited
speaker)
- 1993c Indigenous Peoples and Conservation.
American Anthropological Association (invited speaker)
- 1994a* Towards Village Life: Origins of Sedentary
Communities. Society for American Archaeology (invited
speaker)
- 1994b* The Organization of Communities. Society
for American Archaeology (discussant)
- 1994c Ongoing Threats to Indigenous Cultures.
International Congress of Americanists (invited speaker)
- 1994d Historical Ecology. Tulane U. (invited
speaker)
- 1994e* Engendered States: Redefining the Patriarchal
Past. American Anthropological Association (invited
speaker)
- 1994f* Measuring and Expanding Public Knowledge About
the Environment. American Anthropological Association
(invited speaker)
- 1994g Currents in Latin America. Council on
Foreign Relations (invited panelist)
- 1994h Diversity, Development, and Conservation of
the Amazon Floodplain. New York Botanical Garden, Ford
Foundation, Conselho Nacional de Desenvolvimento Cientifico
e Tecnologico, Brazil (invited speaker)
- 1995* Educating the Public about the Environment.
American Anthropological Association (invited speaker)
- 1996a Arqueologia de las Tierras Bajas. Ministerio
de Educacion y Cultura, Republica Oriental de Uruguay (plenary
speaker)
- 1996b Geologia de Amazonia. Sociedade Brasileira
de Geologia (plenary speaker)
- 1996c Symposium for the 45th Anniversary of CNPq,
the National Research Council of Brazil. Instituto
de Mathematica Applicada e Pura, Rio de Janeiro (invited
speaker)
- 1996d Biodiversity in Amazonia. Museu Paraense
Emilio Goeldi, Belem (plenary speaker)
- 1996e The Development and Organization of Sociopolitical
Complexity in Tropical Environments. Invited symposium,
American Anthropological Association (invited speaker)
- 1996f Complex Societies in Amazonia. International
Congress of Prehistoric and Protohistoric Sciences (invited
speaker)
- 1996g The Andes: Dynamics of Biotic, Human, and Geologic
Patterns through Time. 19 th Annual Field Museum Spring
Systematics Symposium (plenary speaker)
- 1997 International Conference on Ancient Lakes, their
Biological and Cultural Diversities, Lake Biwa, Japan
(plenary session coordinator and invited speaker)
- 1998a Pre-Clovis Human Occupations of the Americas:
Holocene Population Formation in Deglaciated North America
and Beringia. Society for American Archaeology (invited
speaker)
- 1998b The Peopling of the Americas. International
Association for the Study of Human Paleontology, Association
of Human Biologists: Dual Congress (invited speaker)
- 1998c Human Ecology. International Association
for the Study of Human Paleontology, Association of Human
Biologists: Dual Congress (speaker)
- 1998d Women and Gender in Archaeology, Bellagio,
Italy. (invited speaker)
- 1998e Conference on Remote Sensing in Archaeology,
Boston U., (invited speaker)
- 1998fAnthropology in the Public Interest, American
Anthropological Association (invited speaker)
- 1998g Save the Rainforest? The Last Terrestrial Frontier:
A Forum on Population and Conservation: Past, Present, and
Future,American Anthropological Association (discussant)
- 1999a The Peopling of the Americas. World Archaeological
Congress (invited speaker)
- 1999b Sequences of Cultural Evolution: Political
and Economic Dynamics of Long-term Change. Society
for American Anthropology (invited speaker)
- 1999c Culture and Environment in the Lowland Tropics.
Society for American Archaeology (discussant)
- 1999d Anthropology at the End of the Century,
Wenner-Gren Symposium (invited speaker)
- 1999e The First Americans: The Pleistocene Colonization
of the Americas. Fourth Wattis Foundation Symposium,
California Academy of Sciences (invited speaker)
- 1999f Diachronic Changes in Human Adjustment: New
World Island and Coastal Ecosystems, Invited Symposium,
American Anthropological Association (discussant)
- 2000a Fryxell Award Symposium, Society for American
Archaeology (invited speaker)
- 2000b Amazonia 500 anos – O V Centenario e o
novo milenio: licoes de historia e reflexoes para uma nova
era, International Seminar, Museu Paraense Emilio Goeldi
(invited speaker)
- 2000c World History 2000 Conference, University
of Texas at Austin (invited speaker)
- 2000d A Critique of Darwinian Psychology, Symposium,
American Anthropological Association (invited speaker)
- 2002a A Window to the Past: A Door to the Future,University
of Colorado Museum of Natural History Centennial (invited
speaker)
- 2002b Anthropological Archaeology from the School
of American Research – Theoretical and Conceptual
Integration: Papers in Honor of Douglas Schwartz, Society
for American Archaeology (invited speaker)
- 2002c Amazonian Archaeology, Society for American
Archaeology Roundtable Luncheon (invited co-chair with M.
Heckenberger).
- 2002d Brazilian Ecosystems: History, Management,
and Preservation, The A. Watson Armour III Spring Symposium,
Field Museum (invited speaker)
- 2003 The Future of the Rainforest: Does the Past
Show the Way to the Future? Grinnell College (invited
speaker)
- 2004 Reports from the Lower Amazon Project.
Midwest Conference on Andean and Amazonian Archaeology (invited
speaker)
- 2004 Panel of Nobelists. International Science
and Engineering Awards (invited panelist)
- 2005 Rethinking Rain Forest Occupation: New Research
Directions in Tropical Archaeology Society for American
Archaeology (discussant)
- 2005 Earth Day. Des Moines Area Community College
(keynote speaker)
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