First axis of the principal response curves for change in functional traits.

<p>Results in plots subjected to Defoliation (D), Trampling (T), Faeces (F) and their combined treatments (DF, DT and FT) between 2005 and 2008, compared to the Control plots (C, baseline 0). Three of the traits are continuous variables (height, seed mass, SLA), while the other two (habit/life form, life cycle) are characterized by the weighted averages of percentage cover for the different categories (<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0079822#pone-0079822-t001" target="_blank">Table 1</a>).