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. Author manuscript; available in PMC: 2016 Aug 4.
Published in final edited form as: Nature. 2016 Feb 4;530(7588):85–88. doi: 10.1038/nature16532

Extended Data Figure 4. Sensitivity analyses of historical trends from 1978 to 2007 in nectar productivity and species diversity with alternative datasets.

Extended Data Figure 4.

a, Box plots of log 10 (x+1) nectar productivity and b, Box plots of species nectar diversity per habitat based on vegetation data for 1978, 1990, 1998 and 2007 discounting the contribution of grazed white clover in improved grassland. c, Box plots of log 10 (x+1) nectar productivity and d, Box plots of species nectar diversity per habitat, based on vegetation data for 1978, 1990, 1998 and 2007 and computed with the alternative rectangular phenology function. e, Box plots of log 10 (x+1) nectar productivity and f, Box plots of species nectar diversity per habitat, based on vegetation data for 1978, 1990, 1998 and 2007 and computed considering only the species with empirical nectar values. Significant differences of time periods per habitats are indicated by stars (* for p ≤ 0.05; ** for p ≤ 0.01; *** for p ≤ 0.001). See Supplementary Table 3 for sample sizes and Supplementary Result 3 for details.