Table 3.

Model selection statistics for proportional pathogen release (native range richness minus introduced range richness, then divided by native range richness) in hosts’ introduced ranges. All models also included sampling effort (difference in log-transformed citation count) as an explanatory variable

Biological explanatory variables	Historic and geographic explanatory variables	K	Log-likelihood	QAICc	ΔQAICc	Akaike weight
–	Use, area, time	6	−122.2	111.1	0	0.373
Stress	Use, area, time	7	−121.5	112.8	1.73	0.157
Leaf type	Use, area, time	7	−121.8	113.0	1.93	0.142
Height	Use, area, time	7	−122.0	113.2	2.09	0.131
Stress, leaf type	Use, area, time	8	−121.0	114.7	3.60	0.062
Stress, height	Use, area, time	8	−121.2	114.8	3.70	0.059
Height, leaf type	Use, area, time	8	−121.5	115.1	3.98	0.051
Stress, height, leaf type	Use, area, time	9	−120.4	116.5	5.45	0.024
Stress, height, leaf type	Use, area	8	−135.4	126.2	15.2	<0.001
Stress, height, leaf type	Use, time	8	−136.0	126.7	15.6	<0.001
Stress, height, leaf type	Area, time	8	−136.3	126.9	15.9	<0.001
Stress, height, leaf type	Area	7	−147.3	133.5	22.5	<0.001
Stress, height, leaf type	Use	7	−153.2	138.3	27.2	<0.001
Stress, height, leaf type	Time	7	−176.8	157.3	46.2	<0.001
Stress, height, leaf type	–	6	−189.6	165.3	54.2	<0.001

QAIC_c, quasi-likelihood information criterion.