Supplementary tables.

<p>Table A in <a href="http://www.plosbiology.org/article/info:doi/10.1371/journal.pbio.3002856#pbio.3002856.s002" target="_blank">S2 Text</a>. Scoring system for assigning data certainty to estimates of sexual selection in birds. <b>Table B in <a href="http://www.plosbiology.org/article/info:doi/10.1371/journal.pbio.3002856#pbio.3002856.s002" target="_blank">S2 Text</a>.</b> Comparing alternative metrics of sexual selection. <b>Table C in <a href="http://www.plosbiology.org/article/info:doi/10.1371/journal.pbio.3002856#pbio.3002856.s002" target="_blank">S2 Text</a>.</b> Latitudinal gradients in sexual selection. <b>Table D in <a href="http://www.plosbiology.org/article/info:doi/10.1371/journal.pbio.3002856#pbio.3002856.s002" target="_blank">S2 Text</a>.</b> Species-level latitudinal gradients in sexual selection. <b>Table E in <a href="http://www.plosbiology.org/article/info:doi/10.1371/journal.pbio.3002856#pbio.3002856.s002" target="_blank">S2 Text</a>.</b> Ecological predictors of sexual selection. <b>Table F in <a href="http://www.plosbiology.org/article/info:doi/10.1371/journal.pbio.3002856#pbio.3002856.s002" target="_blank">S2 Text</a>.</b> Results of sensitivity analyses assessing robustness of models to data certainty. <b>Table G in <a href="http://www.plosbiology.org/article/info:doi/10.1371/journal.pbio.3002856#pbio.3002856.s002" target="_blank">S2 Text</a>.</b> Collinearity between multivariate model predictors.</p> <p>(DOCX)</p>