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The rain-fed maize growing niche in the southwestern United States, A

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Presentation on theme: "The rain-fed maize growing niche in the southwestern United States, A"— Presentation transcript:

1 Fig. 1 The rain-fed maize growing niche in the southwestern United States, A.D. 500–1400.
The rain-fed maize growing niche in the southwestern United States, A.D. 500–1400. Each cell is colored by the percentage of years it is in the niche; darker green represents more years in the niche. Black dots mark the locations of tree-ring–dated sites in our database (n = 1002). Our study area is within the dotted rectangle encompassing all these sites. UT, Utah; AZ, Arizona; CO, Colorado; NM, New Mexico. R. Kyle Bocinsky et al. Sci Adv 2016;2:e Copyright © 2016, The Authors


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