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The Influence of Soil Quality and Market Orientation on Manioc (Manihot esculenta) Varietal Choice by Smallholder Farmers along the Lower Tapajós River, Pará, Brazil

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Acknowledgements

We thank the residents of the communities of the Resex Tapajós-Arapiuns for their active participation and help, and for sharing information with the research team; the Conselho Nacional de Desenvolvimento Científico e Tecnológico - CNPq for financial support; the Chico Mendes Institute for Conservation and Biodiversity – ICMBIO for permission; Mariane Sousa Chaves for help with data collection; Wenceslau Teixeira and Newton Falcão for discussions about soils, and Peterson Campos for help with the map.

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Correspondence to Raquel Sousa Chaves.

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This study was approved by the Ethics Committee for Research with Human Beings of the National Institute of Amazonian Research, process number 1008548 (2015). The study is also registered with the Chico Mendes Institute for Biodiversity Conservation (SISBIO), process number 47987 (2015). The permission of the communities was obtained at a meeting with residents in each of the communities involved. The first author is a resident of one of the communities involved in the study (Surucuá). The residents who agreed to participate signed an Informed Consent Form, which explained the project and that they could withdraw at any time, according to the guidelines and regulatory norms for research involving human subjects of the Brazilian National Health Council/Ministry of Health (CNS 1997).

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Chaves, R.S., Junqueira, A.B. & Clement, C.R. The Influence of Soil Quality and Market Orientation on Manioc (Manihot esculenta) Varietal Choice by Smallholder Farmers along the Lower Tapajós River, Pará, Brazil. Hum Ecol 46, 229–239 (2018). https://doi.org/10.1007/s10745-018-9981-2

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