Mean contributions of the individual species to mean annual changes in the net biodiversity effect (ŜC_i) during 2003–2011.

1ŜCi = mean annual contributions of the individual species to mean annual changes in the net biodiversity effect (in g/m2). Values were scaled according to the proportion of plots on which the species were sown (see Methods). Species are listed in alphabetical order. 2Bold numbers indicate the three species with the highest positive contributions and numbers in bold italics indicate the three species with the most negative contributions within a particular year. These six species with the most extreme values have marked data points in Fig. 3.