Community diversity.

<p>Shannon-Wiener (<i>H’</i>) diversity index in control and invaded communities. For consistency, <i>H’</i> in invaded communities was determined without regards of the relative contribution of <i>L. planktonicus</i>. Calculations were made both, for low- (LCC) and high-carbon concentration (HCC) treatments. Values are means of triplicates, error bars = SD. Asterisks above plots indicate significant differences in diversity index in the invaded community from that in the control community (two-way repeated measures ANOVA). * P<0.05, ** P<0.01, *** P<0.001.