Erratum

Erratum for the Report: “Wild Pollinators Enhance Fruit Set of Crops Regardless of Honey Bee Abundance” by L. A. Garibaldi, I. Steffan-Dewenter, R. Winfree, M. A. Aizen, R. Bommarco, S. A. Cunningham, C. Kremen, L. G. Carvalheiro, L. D. Harder, O. Afik, I. Bartomeus, F. Benjamin, V. Boreux, D. Cariveau, N. P. Chacoff, J. H. Dudenhöffer, B. M. Freitas, J. Ghazoul, S. Greenleaf, J. Hipólito, A. Holzschuh, B. Howlett, R. Isaacs, S. K. Javorek, C. M. Kennedy, K. M. Krewenka, S. Krishnan, Y. Mandelik, M. M. Mayfield, I. Motzke, T. Munyuli, B. A. Nault, M. Otieno, J. Petersen, G. Pisanty, S. G. Potts, R. Rader, T. H. Ricketts, M. Rundlöf, C. L. Seymour, C. Schüepp, H. Szentgyörgyi, H. Taki, T. Tscharntke, C. H. Vergara, B. F. Viana, T. C. Wanger, C. Westphal, N. Williams, A. M. Klein

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Science  02 May 2014:
Vol. 344, Issue 6183, pp. 1255213
DOI: 10.1126/science.1255213

In the Report “Wild Pollinators Enhance Fruit Set of Crops Regardless of Honey Bee Abundance,” it is possible that some pollinator species were misidentified in lowland coffee, Uganda, one of the 41 studies included in the synthesis. This potential misidentification does not invalidate the analyses, conclusions, or the wider implications of the study. The results are not sensitive to which of the 41 studies are included, because the authors performed several analyses with different subsets of studies, and they all showed similar results. Furthermore, the mixed-effect models allow for individual variation in trends for each study. The results of these analyses depend on the consistency of patterns across all of the 41 studies sampled in 600 fields, and are not influenced to any large extent by a particular pattern occurring in just one study. The main analysis compared the flower visitation rate of honey bees versus all wild insect species combined. This analysis should be largely insensitive to identification concerns because honey bees were readily separable from other species in all studies. Indeed, the analyses performed in the synthesis do not make use of the species names of the wild insects (see database S1).

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