Results from the indicator species analysis for the control and fertilized pots of 2010 and 2011.

<p>Significant relationships between the coverage and seedling number of each invader and certain dominant functional group treatment are shown for having the highest coverage and seedling number in the treatment. Numbers in parentheses are the indicator values (<i>IV</i>). Significance values are calculated based on 1000 randomizations in a Monte Carlo simulation, with *P<0.05, **P<0.01 and ns not significant (P>0.05). Species abbreviations are as given in <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0077220#pone-0077220-t002" target="_blank">Table 2</a>. Arrows (↓) indicate that the coverage and seedling number of invaders had lower values in the pots dominated by the same than by another functional group, which indicates limiting similarity.