Wood Anatomical and Hydraulic Traits of Tamarix Species Across a Large Eurasian Gradient Show a Stronger Climatic Than Phylogenetic Signal Author Akhmedov, Akbar Department of Botany, Samarkand State University, University Boulevard, Samarkand, Uzbekistan | Author Bobokandov, Nodirjon Samarkand Agroinnovations and Research Author Krehenwinkel, Henrik Biogeography, Faculty of Spatial and Environmental Sciences, Trier University, Universitätsring, Trier, Author Rzepecki, Andreas Geobotany, Faculty of Spatial and Environmental Sciences, Trier University, Trier, Germany | Author Klein, Tamir Weizmann Tree Lab, Department of Plant & Author Villar, Jose L. Department of Environmental Sciences and Natural Resources, University of Author Thomas, Frank M. Geobotany, Faculty of Spatial and Environmental Sciences, Trier University, Trier, Germany | text Journal of Biogeography 2025 e 15096 2025-02-03 52 5 1 18 https://doi.org/10.1111/jbi.15096 journal article 309561 10.1111/jbi.15096 1235570f-1ec7-4b44-9ba8-19868cd11298 1365-2699 15304522

TABLE 3 | Wood anatomical and hydraulic traits of Tamarix species along a geographical gradient from NW China to SW Spain (cf. Table 2).

Tamarix species
Note: k ttot, hydraulic conductivity related to unit cross section of the shoot; k tcond, hydraulic conductivity related to the sum of conduit areas in that cross section; d h, hydraulic diameter of the conduits; P 50, xylem water potential causing 50% loss of hydraulic conductivity by embolism. Species with the same lower-case letter do not differ significantly in a given trait (GLM univariate ANOVAs with post hoc Sidak test, if no deviation from homogeneity of variances [Levene test] or from homoscedasticity; and Kruskal–Wallis [KW] tests in cases of significant deviations from homogeneity of variances or from homoscedasticity); p <0.05. Means ±1 SE.(Partial) η 2, effect sizes of (ANOVA or) KW tests. aOnly one value for this species.
Trait (statistical test)	T. ramosissima	T. hispida	T. aphylla	T. negevensis	T. nilotica	T. boveana	T. gallica	(Partial) η 2	Statistical power
Percentage conduit area (KW)	15.0 ± 1.2 a	12.0 ± 0.6 ab	10.5± 2.0 abc	14.9 ± 2.3 a	15.0 ± 1.8 a	7.9 ± 0.4 c	9.2± 0.4 bc	0.463	0.953
Conduit density (KW)	72.4 ± 7.3 abc	57.9± 4.2 bcd	42.1± 0.3 cd	55.7 ± 5.4 bcd	37.3 ± 4.9 d	175.6± 69.5 ab	324.8 ± 60.6 a	0.690	>0.999
Mean conduit area (µm2) (GLM)	2093± 63 b	2306± 236 b	2666± 370 ab	2933± 366 ab	4045± 115 a	694± 173 c	405± 43 c	0.866	>0.999
Maximum conduit area (µm2) (KW)	8938 ± 344 a	7806± 644 a	5572 ± 623 ab	8725± 683 a	8929 ± 127 a	4341 ± 551 b	3950 ± 622 b	0.546	0.996
Mean conduit diameter (µm) (GLM)	45.6 ± 0.8 bc	50.3 ± 2.9 b	58.8 ± 4.5 ab	59.3± 4.0 ab	70.9 ± 1.4 a	23.7± 4.2 c	17.6 ± 1.2 c	0.912	>0.999
Maximum conduit diameter (µm) (GLM)	107.7± 2.1 a	101.1± 3.9 ab	86.6± 5.2 bc	108.7± 4.9 a	110.0 ± 1.3 a	74.1 ± 4.7 c	70.4 ± 5.5 c	0.780	>0.999
k (kg MPa−1 m−1 s−1) (GLM) ttot H2O	368 ± 26 a	332± 36 ab	229 ± 78 abc	454 ± 105 a	564 ± 82 a	100 ± 8 bc	89 ± 10 c	0.710	>0.999
k (kg MPa−1 m−1 s−1) (GLM) tcond H2O	2457 ± 55 b	2588 ± 169 ab	2154 ± 324 bc	2850 ± 302 ab	3427 ± 78 a	1180 ± 64 cd	966± 112 d	0.853	>0.999
d h (µm) (GLM)	76.7± 0.9 a	75.2 ± 2.5 a	66.1 ± 4.8 ab	77.7± 4.0 a	83.7± 1.3 a	52.4 ± 2.6 b	49.5 ± 3.1 b	0.845	> 0.999
Wood density (g cm−3) (GLM)	0.80 ± 0.03 a	0.62± 0.02 b	0.91 ± 0.03 a	0.87± 0.03 a	0.81± 0.01 a	0.98a	0.91± 0.04 a	0.877	> 0.999
P 50 (MPa) (KW)	−9.74± 2.57 c	−2.37± 0.18 a	−2.64 ± 0.02 ab	−3.05 ± 0.34 ab	−3.39± 0.82 ab	−7.17 ± 1.23 c	−5.45 ± 0.21 bc	0.720	0.967