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. 2016 Jul 22;7:1100. doi: 10.3389/fpls.2016.01100

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Copyright © 2016 Dziedek, Härdtle, von Oheimb and Fichtner.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Changes in net biodiversity, complementarity and selection effects with global change drivers (C, control; N, nitrogen addition; D, drought; N+D: nitrogen addition and drought) for (A) beech-oak stands (Fagus sylvatica–Quercus petraea), (B) beech-fir stands (Fagus sylvatica–Pseudotsuga menziesii), and (C) beech-oak- fir stands (Fagus sylvatica–Quercus petraea–Pseudotsuga menziesii). Values are square-root transformed to meet model assumptions while preserving the original positive and negative signs. Asterisks indicate significant differences (P < 0.05) and open circles marginal significant differences (P ≤ 0.1) between the control (C) plots and global change driver (N, D, N+D) treatments.