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Clinal variation in fitness in the Idaho garden (elevation: 2535). Fitness declined with geographic distance for (A) survival in the 2012 cohort, and (B) first year fecundity in the 2011 cohort. Additionally, (C) first year fecundity of the 2011 cohort increased with source elevation. Shading around predicted lines represents 95% CI, and the star on the X-axis of panel C shows the elevation of the garden (2535m).
