Extended Data Figure 3: Changes of apparent temperature sensitivity of leaf unfolding between 1980–1994 and 1999–2013.
From: Declining global warming effects on the phenology of spring leaf unfolding
a–c, Same as Fig. 1, but the ST was calculated based on the preseason that was determined either in the time period 1980–1994 (b) or in 1999–2013 (c). The differences in preseason lengths are provided for individual species and for combined totals for all species (a), and the figures above bars are the mean absolute preseason difference between two periods. For b and c, species-specific ST and its s.d. (in brackets) across all sites in three periods and its difference between 1999–2013 and 1980–1994. The colour scale indicates the magnitude of ST. The number of sites for each species are in brackets under the species name. d, e, The distribution of the proportion and corresponding days (e) of the encroachment of phenology dates into the preseason temperature that the preseason was determined on the period 1980–2013. The proportion was defined as the difference of the mean leaf unfolding dates (diff MSOS) between the period 1999–2013 and 1980–2013 (which is the end date of the preseason temperature that was used to calculate the ST) divided by the preseason length in days. The mean values and s.d. (in brackets) are provided for individual species and for combined totals for all species.
