Figure legends
Figure 1. Location of study areas (Cerrado: typical cerrado;
Cerradão; Forest: semi-deciduous seasonal forest). Database: MMA
(Ministry of the Environment; site:
mapas.mma.gov.br).
Figure 2. Comparisons of Ψl between different
seasons (rainy and dry) and across different periods of the day in the
typical cerrado (orange bars), cerradão (light green), and forest (dark
green). Asterisks indicates significant differences (p<0.05).
Figure 3. Comparison between cerrado (orange bars), cerradão
(light green), and forest (dark green) for the variation in
Ψl predawn (ΔΨpd, MPa) and the variation
in Ψl at midday (ΔΨmd, MPa). Asterisks
indicates significant differences (p <0.05).
Figure 4 . Leaf water potential regulation of 21 species divided
into two groups: forest (comprising cerradão and semi-deciduous seasonal
forest) and savanna (typical cerrado). The slope angle ( ± CI -
confidence interval) estimates the value that allows classifying: square
- the species as strict isohydric (SI), triangle - partially isohydric
(PI), and circle - extreme anisohydric (EA). The line shows the distance
of confidence interval that to differ the types of leaf water potential
regulation. No species was identified as strict anisohydric. Complete
list of species names is shown in Table 1.
Figure 5. Linear regression between the leaf water potential
(Ψl, MPa) and the Vapor Pressure Deficit (VPD, KPa) of
the typical cerrado (orange), cerradão (light green), and forest (dark
green), in the Cerrado-Amazonia Transition, Brazil. Circles represent
individuals sampled in each vegetation type. Intercepts between
regression lines differed in both rainy (p <0.001), and
dry seasons (p <0.001) (Standardised Major Axis- SMA).