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This Concept Map, created with IHMC CmapTools, has information related to: ECL 222 Oct 10, ECL 222 Oct 10, 2005 researching all this raises big questions of scale and extrapolation, market systems which can lead to a reduction in diversification, diversification contingent on lots of things detailed in Brush's book, intensification eg watering, intensification equals increased yield, ECL 222 Oct 10, 2005 crop domestication intensification, ECL 222 Oct 10, 2005 post-domestication diversification, polyploidy eg potatoes, rice via eco-geographic differentiation, polyploidy eg wheat, increased yield which requires specialization, ECL 222 Oct 10, 2005 crop domestication vastly increasing the usable portion of the crop, dispersal eg rice, specialization and leads to market systems, dispersal eg maize, intensification eg fertilizing, ECL 222 Oct 10, 2005 also mentioned comparative farming systems, ECL 222 Oct 10, 2005 post-domestication dispersal, vastly increasing the usable portion of the crop via selection, diversification via polyploidy