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...background for the plot different colors? For example, I'd like to have the background color col = (250,250,0,50) for y = c(200,204), and col = (250,125,0,50) for y = c(210,212). Any suggestions? Thanks in advance for the help, Gabe -- Gabriel I. Yospin Institute of Ecology and Evolution Bridgham Lab University of Oregon Eugene, OR 97403-5289 Ph: 541 346 1549 Fax: 541 346 2364 [[alternative HTML version deleted]]

...lty = 3)) My two questions: 1. How do I make the ellipse color match the color of the points each ellipse represents? 2. How do I label those ellipses, without drawing the dashed lines as per ordispider()? Many thanks, Gabe -- Gabriel I. Yospin Center for Ecology & Evolutionary Biology Bridgham Lab University of Oregon Eugene, OR 97403-5289 [[alternative HTML version deleted]]