Table 1. Topographic and bioclimatic variables ranked according to their overall model contribution for continental species of the genus Epicrates.

Rank	Epicrates alvarezi		Epicrates crassus		Epicrates assisi		Epicrates cenchria		Epicrates maurus
1	TS	42.1	PWQ	29.2	TS	21	AP	44.7	MinTCM	21.2
2	PWQ	17.8	TS	28.5	MinTCM	18.3	TS	23.4	PDM	21
3	PCQ	15.3	PDM	12.4	MMTR	17.5	Altitude	9.8	MMTR	18.2
4	PS	11.3	Altitude	11.3	AP	12.2	MinTCM	7.9	I	14.7
5	MMTR	5	I	5.7	PWQ	10	I	4.9	PCQ	8.1
6	AMT	3.2	AMT	5.4	PDM	9.3	PCQ	3.3	PWQ	7.5
7	PDM	1.7	MinTCM	3.3	PCQ	5	PWM	2	TS	5.8
8	Altitude	1.5	PS	1.6	I	2.6	MMTR	2	AP	1.1
9	I	0.9	MaxTWM	1.3	MaxTWM	1.5	PDM	1.5	MaxTWM	0.9
10	MinTCM	0.9	PCQ	0.7	PWM	1.3	AMT	0.2	Altitude	0.7
11	MaxTWM	0.2	AP	0.3	altitude	1.1	PWQ	0.1	PS	0.7
12	PWM	0.2	MMTR	0.2	AMT	0	PS	0.1	PWM	0.3
13	AP	0	PWM	0.1	PS	0	MaxTWM	0	AMT	0
AUC	0.977		0.975		0.937		0.87		0.962

AUC is the area under the curve in ROC plots. Bioclimatic variables are as follows: AMT, Annual mean temperature; MMTR, Mean monthly temperature range; I, Isothermality; TS, Temperature seasonality; MaxTWM, Max. temperature warmest month, MinTCM, Min. temperature coldest month, AP, Annual precipitation, PWM, Precipitation wettest month; PDM, Precipitation driest month; PS, Precipitation seasonality; PWQ, Precipitation warmest quarter; PCQ, Precipitation coldest quarter.