Table 3. Summary of SMA regression parameters (n, p, r ², α, β, 95%CI, respectively) for allometric relationships between plant functional traits (shoot height, root/shoot ratio, branch length and leaf number) and plant size of the macrophyte species Potamogeton maackianus at two lakes (Erhai Lake and Niushanhu Lake).

Lake	n	r 2	p	α	LowCIα	UppCIα	β	LowCIβ	UppCIβ
Shoot height (cm)
Erhai Lake	522	0.30	***	0.82	0.76	0.88	2.69	2.65	2.73
Niushanhu Lake	159	0.39	***	0.76	0.68	0.87	2.45	2.38	2.52
Root/shoot ratio (g g−1)
Erhai Lake	522	0.23	***	−1.29	−1.39	−1.20	−1.86	−1.92	−1.79
Niushanhu Lake	159	0.33	***	−1.06	−1.20	−0.93	−1.69	−1.79	−1.59
Branch length (cm)
Erhai Lake	522	0.47	***	2.22	2.09	2.37	2.95	2.85	3.04
Niushanhu Lake	159	0.66	***	1.71	1.56	1.88	2.82	2.71	2.94
Leaf number (N plant−1)
Erhai Lake	522	0.48	***	1.90	1.78	2.02	2.72	2.64	2.80
Niushanhu Lake	159	0.78	***	1.18	1.10	1.27	2.66	2.60	2.72

n, samples number; r ², correlation coefficient; p-values refer to correlation analyses following standardized major axes (SMA) procedures (see the Material and Methods section); α, slope; CIα, 95% CIs of the slope; β, intercept; CIβ, 95% CIs of the intercept;

^***, p<0.001.