. 2017 Aug 24;5(8):apps.1700017. doi: 10.3732/apps.1700017

Table 4.

Observed operational taxonomic unit (OTU) richness per individual sample and site, number of OTUs unique to each site, and indices of diversity (Chao₁, Simpson, Shannon–Wiener) for arbuscular mycorrhizal fungal communities at both study sites. Values represent the site mean with standard deviation in parentheses; El Eden, N = 14 samples; La Higuera, N = 19 samples.

			No. of OTUs^*			Diversity indices^*
Clustering threshold	OTUs	Site	Per sample	Total	Unique	Chao₁	Simpson	Shannon–Wiener
90%	All	El Eden	120 (12)^a	331	126	160 (15)^a	0.79 (0.050)^a	3.24 (0.25)^a
		La Higuera	79 (15)^b	239	34	100 (20)^b	0.68 (0.066)^a	2.74 (0.33)^a
	≥2 ton	El Eden	116 (11)^a	267	62	144 (13)^a	0.79 (0.050)^a	3.24 (0.25)^a
		La Higuera	78 (15)^b	214	9	96 (17)^b	0.68 (0.066)^a	2.74 (0.33)^a
	≥10 ton	El Eden	106 (10)^a	194	19	126 (10)^a	0.79 (0.050)^a	3.24 (0.25)^a
		La Higuera	75 (13)^b	177	2	91 (14)^b	0.68 (0.066)^a	2.74 (0.33)^a
95%	All	El Eden	337 (44)^a	2197	1716	718 (94)^a	0.84 (0.032)^a	3.76 (0.22)^a
		La Higuera	122 (49)^b	808	327	204 (123)^b	0.83 (0.042)^a	3.44 (0.29)^a
	≥2 ton	El Eden	264 (31)^a	1178	697	409 (42)^a	0.84 (0.032)^a	3.75 (0.22)^a
		La Higuera	109 (41)^b	553	72	154 (55)^b	0.83 (0.042)^a	3.44 (0.29)^a
	≥10 ton	El Eden	121 (14)^a	371	89	186 (15)^a	0.84 (0.032)^a	3.73 (0.22)^a
		La Higuera	90 (18)^b	285	3	113 (20)^b	0.83 (0.042)^a	3.43 (0.29)^b
97%	All	El Eden	617 (103)^a	5871	5416	1845 (329)^a	0.79 (0.046)^a	3.48 (0.26)^a
		La Higuera	108 (135)^b	1000	545	258 (434)^b	0.82 (0.060)^a	3.23 (0.34)^a
	≥2 ton	El Eden	349 (50)^a	2219	1674	533 (71)^a	0.79 (0.046)^a	3.45 (0.26)^a
		La Higuera	84 (66)^b	539	84	132 (94)^b	0.82 (0.060)^a	3.22 (0.34)^a
	≥10 ton	El Eden	130 (13)^a	402	164	160 (15)^a	0.79 (0.046)^a	3.41 (0.26)^a
		La Higuera	65 (18)^b	243	5	88 (20)^b	0.82 (0.060)^a	3.21 (0.34)^a

For each clustering threshold and OTU inclusivity level, means within each column with the same letter do not differ significantly at P < 0.05 (Tukey’s HSD test).