June 2012 "Indios Urbanos: migración, identidad, y creación de comunidades indígenas en ciudades en los Estados Unidos," ("Urban Indians: migration, identity, and the creation of indigenous communities in the United States.") The Uruguayan National University, Montevideo.
January 2007 "The contribution of anthropologists Ralph C. Michelsen and Roger Owen's work regarding the PaiPai and Kiliwa of Baja California and Luiseño of California." University of California, Riverside.
May 23, 2006 "Teorias de Migración Indígena," La Universidad de Costa Rica, San Jose Costa Rica.
May 17-18, 2006 "Migración Urbana Indígena Interna en Los Estados Unidos" Consultative meeting regarding indigenous migration. International Institute for Human Rights (IIDH), San Jose, Costa Rica.
March 27, 2006 "Identidad Indígena en Los Estados Unidos" Facultadad de Humanidades y Sciencias, Universidad de la Republica, Montevideo, Uruguay.
January, 2006 "Leonard Chana, Tohono O'odham Artist." Amerind Foundation.
November 2005 "Conceptualizing Territory: A Native Perspective" American Society for Ethnohistory, Santa Fe.
October 2005 "Non-Academic Professional Careers" American Indian Studies colloquium series, University of Arizona, Tucson.
April 2005 "Collaborative Work in Urban Indian Communities",
The Society for Applied Anthropology, Santa Fe.
November 2004 "Inuit in Urban Spaces" Panel Discussant. American
Anthropological Association, Berkeley.
October 2004 "Creative (and Relevant) Outcomes in Collaborative
Research", American Society for Ethnohistory,
Chicago.
November 2004 "Reweaving the History of California Indian Baskets."
with Reuben V. Naranjo. University of Arizona, American
Indian Studies Lecture Series.
