Table 1.

Tree species selection criteria by ISA Certified Arborist® (No = not a certified arborist; Yes = is a certified arborist).

	ISA Certified Arborist^®^{¹, ²}		U	Z	r	P
	No	Yes	U	Z	r	P
Aesthetics	4	3	686	0.74	0.09	0.46
Mature size	5	5	433	−2.54	−0.30	0.01
Existing diversity	4	4	400	−2.70	0.31	< 0.01
Planting budget	4	4	763	1.65	0.19	0.10
Availability	4	4	586	−0.45	0.05	0.65
Genetic diversity	3	3	529	−1.11	−0.13	0.27
Maintenance costs	4	4	764	1.71	0.20	0.09
Citizen preference	3	3	571	−0.62	−0.07	0.53
Resistance to pests and disease	4	4	642	0.23	0.03	0.82
Native species	4	3	837	2.49	0.29	0.01
Soil type	4	4	675	0.61	0.07	0.54
Root space	4.5	4	645	0.26	0.03	0.80
Tree hardiness	4	5	473	−1.90	−0.22	0.06
Water requirements	4	4	556	0.81	−0.09	0.42
Hours of sun	4	3.5	630	0.10	0.01	0.94
Proximity to infrastructure	5	5	692	0.93	0.11	0.35

↵¹Cell entries are medians of tree selection criteria from 1, “not at all important” to 5, “very important.”
↵²n = 74; no (no, is not a certified arborist) = 48; yes (yes, is a certified arborist) = 26.