Vol. 213, No. 10, September 19, 2016. Pages 2187–2207.

The authors regret that in the original online article, the contour plots in Fig. 10 F were not correct. The plots in panel J were inadvertently copied to panel F during the revision process. The contour plots in panel F have since been replaced in the online HTML and PDF versions of the article as well as in the print version. The change does not alter the conclusions of the paper.

The corrected figure appears below.