. 2011 Jun 20;6(6):e20957. doi: 10.1371/journal.pone.0020957

Table 4. Significance of effect of training area, size of training dataset, and set of bioclimatic variables on AUC values.

Model	Area 1980/1955	Input variables						Size
		6/19var		PCA/19var		PCA/6var		20/10		Big/Small
		1955	1980	1955	1980	1955	1980	1955	1980
BIOCLIM	^***	^*	^***	^**	^***	^**	^**	NS	NS	^***
CSM	^***	NS	NS	NS	NS	NS	NS	NS	NS	NS
DKGARP	.	^***	^***	^***	^***	^**	^***	NS	NS	^***
DOMAIN	^***	NS	NS	NS	^***	NS	^***	NS	NS	NS
ED	^***	NS	NS	NS	^***	NS	^***	NS	NS	NS
ES	NS	NS	NS	NS	NS	NS	NS	NS	NS	^***
MAXENT	^***	NS	NS	^***	^***	^***	^***	NS	NS	NS
OMGARP	.	^***	^***	^***	^***	NS	.	NS	NS	NS
SVM	^***	NS	NS	NS	^*	.	^*	NS	NS	NS

Area 1980 vs. 1955, 6 variables vs. 19 variables, first three principal components (PCA) vs. 19 variables, PCA vs. 6 variables, training dataset size = 20 vs. 10, big training dataset (more than 50 presence points) vs. small (less than 50).

***p<0.001 |

**p<0.01 |

*p<0.05 |. p<0.1 | NS not significant.