Extended Data Fig. 9: Changes of log-transformed absolute diameter growth rate (AGR) over time across and within species, for the 81 studied species.
From: Tropical tree mortality has increased with rising atmospheric water stress
The main figure shows the species-level coefficients of AGR change per year, between 1971 and 2019 (species-specific ‘year’ slope; β2j in eqs. 7, Supplementary Methods 1). Circles and horizontal bars are posterior median and 95% highest posterior density intervals (HPDI). Plain black circles and bars are species whose posterior 95%-HPDI did not encompass zero; semi-transparent circles and bars are species whose HPDI encompassed zero (no clear AGR increase or decrease). The red dashed line marks zero, that is, the separation between coefficient values indicating an increase of AGR over time (positive values) and a decrease of AGR over time (negative values). The vertical plain and dashed blue lines are the median and 95%-HPDI of the grand year slope (see inset). The inset shows the posterior probability distribution of the coefficient of AGR change per year across all species (i.e. grand ‘year’ slope mean; β2,0 in eqs. 7, Supplementary Methods 1). Overall, AGR did not clearly increase or decrease across species (unlike mortality risk; Fig. 3). AGR increased for 14 species and decreased for 19 species, while remaining mostly unchanged (95%-HPDI encompassing zero) for 48 species (semi-transparent circles and horizontal bars).
