Table 2.

Parameters of the linear regressions of ln body mass on ln SVL for red-tongued pit viper (Gloydius ussuriensis).

Species	N	b ± SE	a ± SE	r2	p-value	SVL0	bRMA
G. ussuriensis	356	2.591 ± 0.057	$-$ 5.944 ± 0.211	0.853	< 0.0001	41.171	2.6950
Viperidae	60	2.655 ± 0.107	$-$ 5.779 ± 0.675	0.91	< 0.0001		2.7833

Included in this table are the average SVL (SVL₀) and the slope of reduced major axis analysis (b_RMA) used for the calculation of body condition index (see text for explanation). The regression took the form of ln body mass (g) = b ln SVL (cm) + a. For comparison, the data of the regression equations for Viperidae are also presented (calculated from Feldman and Meiri³⁸).

N sample size, standard error.