Table 1.

Legume introduction success predicted by rhizobia richness, rhizobia community, plant life history, plant human usage, plant locality and plant range area. Italicized values indicate significance at p < 0.05. Asterisks indicate differing levels of significance: *, p < 0.05; **, p < 0.01; ***, p < 0.001.

factor	estimate	s.d.	d.f.	F	p-value
genus results, d.f. = 149, λ = 0.292
number of genera	2.00	1.19	1	19.89	<0.0001***
annual	1.02	2.66	1	1.15	0.2853
number of human uses	4.68	0.41	1	103.99	<0.0001***
latitude of native range	−0.10	0.05	1	7.82	0.0058**
area of native range	−4.81	1.13	1	18.19	<0.0001***
OTU results, d.f. = 54, λ = 0.241
OTUs (log)	12.70	5.00	1	14.76	0.0003***
rhizobia community (shared)	7.73	3.58	1	9.60	0.0031**
annual	2.85	4.91	1	2.02	0.1610
number of human uses	2.72	0.81	1	8.03	0.0065**
latitude of native range	−0.07	0.10	1	2.14	0.1489
area of native range	−5.04	2.07	1	5.91	0.0189*
number of sequences	−0.04	0.03	1	2.26	0.1383