Results of significance tests for values.

<p> values are grouped by linguistic phylum with each dot representing one population. The median per phylum is indicated by a red line, the boxes surrounding the medians indicate the 25^th and 75^th percentiles and the 5^th and 95^th percentiles are indicated as error-bars. Non-significant results of the Kruskal-Wallis/Dunn's multiple comparison test are indicated by lines with the text <i>ns</i> below the values and significant results are indicated by lines with p-values above the values. For the population abbreviations used in the figure, see <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0091534#pone-0091534-t001" target="_blank">tables 1</a> and <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0091534#pone.0091534.s005" target="_blank">S1</a>.