Table 2. Model predictive ability under current climate based on median Area Under the Curve (AUC) values for common ragweed (Ambrosia artemisiifolia), perennial ragweed (A. psilostachya) and giant ragweed (A. trifida).

AUC values were derived from average test AUC values for MAXENT models of 15 replicates based on all occurrence records from the native range (see Table 1).

	Model AUC (based on test records in native range)
	Common ragweed	Perennial ragweed	Giant ragweed
Median ± SD	0.797 ± 0.013	0.806 ± 0.014	0.817 ± 0.012
Min–Max	(0.774–0.825)	(0.787–0.827)	(0.797–0.837)