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. 2019 Jul 10;286(1906):20191220. doi: 10.1098/rspb.2019.1220

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© 2019 The Authors.

Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited.

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Figure 2. — Forest plots of nutrient quality (a) and quantity (b) and their effects on virulence effect size (Hedges's g ± 1 s.e.) for each pathogen species. Dotted line shows the overall effect size with the grey area demarcating the margin of error. Values of Hedges's g equal to zero represent no difference in pathogen virulence between treatments. Positive Hedges's g values represent cases where the pathogen virulence is greater in the higher nutrition treatment group than the lower nutrition group. Negative Hedges's g values represent cases where the pathogen virulence is greater in the lower nutrition treatment group than the higher nutrition group. (Online version in colour.)