Figure and table captions
Figure
1. Clades’ distributions based on occurrence records for Scutiger
boulengeri . Map showing the Tibet regions including main Mountains and
main Rivers. Abbreviations: YTR: Yarlung-Tsangpo River; NR: Nu River;
LCR: Lancang River; JSR: Jinsha River; YLR: Yalong River; DDR: Dadu
River; MR: Min River; YTZR: Yangtze River; YR: Yellow River; Mts.:
Mountains.
Figure 2. (a): Phylogenetic relationships and
geographic distributions in Minimum convex polygon (MCP) and the
suitable range of six clades in S. boulengeri ; supporting values
of BI and ML labeled on branches; divergence time (Ma) of dated tree in
bold; (b): The suitable habitat range prediction map for each
clade; (c): Ancestral state reconstructions of main climatic
PCs and Elevation, colors of branches reflect values of PCs and
elevation interpolating the states along each edge.
Figure 3. (a): Three dimensional principal component analysis
(3D-PCA) of climate variables across six clades
withinS. boulengeri ; (b): Predicted occupied niche of
Isothermality across six clades within S. boulengeri ;(c): Correlation and contribution of each variable to the first
two components of the PCA-env; (d)-(e): Histograms of niche
equivalency distributions, diamond lines represent observed values;
(f)-(g) Histograms of niche similarity distributions in
bi-directions; (h)-(i): Two pairwise comparisons of niche
dynamic between native and shifted ranges in environmental space
depicted by the first two axes of a PCA, calibrated on the entire range
of conditions available in China (red solid lines). Niche expansion,
overlap and unfilling situations are stacked in the environmental space
for each clade. Green areas represent climates only occupied in the
native range and blue indicate climates occupied in both the native and
non-native range, while red areas indicate niche expansion in the
shifted range. Shading indicates the density of occurrences of the
species by cells in the native range. The solid and dashed contour lines
illustrate, respectively, 100% and 50% of the available environment in
the native range.
Table 1 Loadings on the first five principal components.