Table 6.

Average (range: minimum–maximum) values of the geographical and climatic variables in the distribution area of the red-tongued pit viper (Gloydius ussuriensis) in South Korea.

Category	Code	Variables (unit)	Type	G. ussuriensis
Topographic environment	alt	Altitude (m)	Continuous	248.03 (0.00–990.00)
Habitat environment	land	Land cover	Categorical	Forest (89.81%), Cropland (4.94%), Grassland (4.32%), Shrubland (0.93%)
Climate environment	bio1	Annual mean temperature (℃)	Continuous	11.31 (7.19–15.95)
	bio2	Mean diural range (℃)	Continuous	9.08 (5.46–11.31)
	bio3	Isothermality (%)	Continuous	26.48 (18.62–30.54)
	bio4	Temperature seasonality (SD × 100; ℃)	Continuous	933.68 (709.90–1045.13)
	bio5	Maximum temperature of the warmest month (℃)	Continuous	27.63 (23.80–29.50)
	bio6	Minimum temperature of the coldest period (℃)	Continuous	$-$ 6.48 (-13.00–3.50)
	bio7	Temperature annual range (℃)	Continuous	34.10 (25.70–38.30)
	bio8	Mean temperature of the wettest quarter (℃)	Continuous	22.20 (18.45–24.23)
	bio9	Mean temperature of the driest quarter (℃)	Continuous	$-$ 0.31 ($-$ 5.83 to 9.70)
	bio10	Mean temperature of the warmest quarter (℃)	Continuous	22.45 (19.02–24.93)
	bio11	Mean temperature of the coldest quarter (℃)	Continuous	$-$ 0.53 ($-$ 5.83–7.47)
	bio12	Annual precipitation (mm)	Continuous	1,277.50 (740.00–2000.00)
	bio13	Precipitation of the wettest month (mm)	Continuous	279.78 (174.00–356.00)
	bio14	Precipitation of the driest month (mm)	Continuous	26.05 (14.00–56.00)
	bio15	Precipitation seasonality (%CV; mm)	Continuous	79.94 (53.83–102.61)
	bio16	Precipitation of the wettest quarter (mm)	Continuous	690.75 (403.00–916.00)
	bio17	Precipitation of the driest quarter (mm)	Continuous	96.70 (56.00–212.00)
	bio18	Precipitation of the warmest quarter (mm)	Continuous	667.85 (399.00–886.00)
	bio19	Precipitation of the coldest quarter (mm)	Continuous	97.15 (56.00–217.00)