Levels of admixture provided by Bayesian clustering analyses (STRUCTURE) for each period separately (left panel: period 1/right panel: period 2).

Abstract

<p>Following the procedure outlined in [<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0071624#B56" target="_blank">56</a>], optimal cluster sizes of K=2 and K=4 were assigned to period 1 and period 2, respectively.</p