Erratum

Errata for: Allgeier, J. E., Layman, C. A., Monta？a, C. G., Hensel, E., Appaldo, R. and Rosemond, A. D. 2018. Anthropogenic versus fish‐derived nutrient effects on seagrass community structure and function. Ecology 99:1792–1801. https://doi.org/10.1002/ecy.2388 The authors wish to report that the phosphorus (P) content of the fertilizer used in their enrichment experiment was calculated incorrectly. Specifically, this error was associated with a misinterpretation of the way the N and P compounds were reported by the fertilizer company: nitrogen (N) was reported as NO3？/NH4+‐N, i.e., the mass of N alone in NO3？ NH4+ combined, whereas P was reported as the mass of PO43？, and the authors incorrectly read this as PO43—P. Correcting this reduced the estimate of the amount of P delivered by the fertilizer from 0.9 ± 0.1 SD·reef？1·day？1 to 0.39 ± 0.042 SD·reef？1·day？1 (Fig. 2). This has some very minor consequences for the GAM models (reported in Fig. 3 in the main text) that used measures of P supply and the ratio of N:P across reefs as predictors for their response variables. In running these models with the new P supply rate they found no substantive change in their findings. The R2 was reduced in the %N, %P, Richness and Evenness models (0.67 to 0.62, 0.68 to 0.62, 0.52 to 0.57, and 0.66 to 0.61, respectively). None of the top models as selected by AIC changed, but note that for Evenness there was no difference between the N and P models according to AIC (？347.86 and ？346.77, respectively) so the best model was determined by the highest R2 – the P model (0.6 and 0.61 N and P, respectively). Provided here are two figures from the original paper (Figs. 2 and 3) that have been updated to account for these changes