Principal component scores for principal component 1 (x-axis) and principal component 2 (y-axis) for four patches within patch-burn grazing with no fire, areas burned in Years 1, 2, and 3, and continuous season-long grazing at Clear Lake and Summit, South Dakota (2007–2009). Polygons represent tightness of clustering: the dashed polygon is the patch-burn treatment and the solid polygon is the continuous season-long grazing treatment.
Manuscript received for review, 11/18/14;
accepted for publication, 7/30/15.
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