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. 2015 Apr 1;7:plv033. doi: 10.1093/aobpla/plv033

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Published by Oxford University Press on behalf of the Annals of Botany Company.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.

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Figure 2. — (A–C) Effect of competition (competitor identity and competitor density) and environmental conditions (water and shading) on biomass. Symbols show species mean value under interspecific competition or without it; error bars show the 95 % confidence intervals. Species abbreviations: N = I. noli-tangere, P = I. parviflora, G = I. glandulifera. Each graph shows the pair of most important variables (according to their explanatory power). To visualize the effect of competitor density (B), we divided this continuous variable into two categories: low competitor density = under mean competitor number and high competitor density = above mean competitor number.