Response to comment by McMichael, Piperno and Bush

Affiliations

• ¹ Instituto Nacional de Pesquisas da Amazônia-INPA, Av. André Araújo, 2936 - Petrópolis, 69067-375 Manaus, Amazonas, Brazil cclement@inpa.gov.br.
• ² Department of Geography, emeritus, University of Wisconsin, Madison, WI 53706, USA.
• ³ Department of Anthropology, University of Florida, Gainesville, FL 32611-7305, USA.
• ⁴ Instituto Nacional de Pesquisas da Amazônia-INPA, Av. André Araújo, 2936 - Petrópolis, 69067-375 Manaus, Amazonas, Brazil Centre for Crop Systems Analysis, Wageningen University, 6700 AK Wageningen, The Netherlands.
• ⁵ Museu de Arqueologia e Etnologia, Universidade de São Paulo, São Paulo, SP 05508-070, Brazil.
• ⁶ Embrapa Solos, Rio de Janeiro, RJ 22460-000, Brazil.