Lists of figures and tables
Fig. 1 Distribution of sampling sites (a) and spatial patterns (b and c) of trichome density in oriental oak across Eastern Asia. The circles and triangles represent 44 in situ populations, triangles represent 15 original sites of common garden populations, and the square represents the location of the common garden. The picture on the right represents the morphology of trichome in oriental oak. N, sample number; Max, maximum; Min, minimum; SE, stand error; CV, coefficient of variation.
Fig. 2 The piecewise structural equation model (SEM) for testing the effects of environmental factors and leaf functional traits on leaf trichome density. GeoPC1 and GeoPC2 represent the first two principal components of the 3 geographic variables, ClimPC1 and ClimPC2 represent the first two principal components of the 5 climatic variables, and eigenvector scores for two axes of principal component analysis (PCA) are also given. The standardized regression coefficient is shown for each significant path (P < 0.05). The conditional (c) and marginal (m) R2 are provided for each exogenous variable (R2c = both fixed and random effects, and R2m = fixed effects). Black arrows denote positive relationships, red arrows negatives ones. Blue arrow denotes the correlation between SD and SS. LMA, leaf mass per area; SD, stomatal density; SS, stomatal size; VD, vein density.
Fig. 3 Relationships between trichome density and environmental factors for oriental oak (n = 44).
Fig. 4 Relationships between trichome density and leaf functional traits for oriental oak.
Fig. 5 Difference in trichome density between the common garden and in situ. The common garden is located in Shanghai (at 4 m above sea-level, and 31°02′N and 121°26′E), where MAT and MAP is 15.5 °C and 1149.8 mm, respectively. The letters above bars represent a significant difference at the P < 0.05 level, by Duncan’s test (n = 15).
Fig. 6 Relationships between trichome density and leaf functional traits in the common garden (n =15) and in situ (n =15).