Table 1.

Ten most abundant oomycete and fungi OTUs found in 26 Quercus ilex dehesas of the Andalusian Network for Damage Monitoring in Forest Ecosystems, ordered by relative frequency (from core-features of each abundance matrix calculated among OTUs present in at least 50% of samples). Freq.: Number of sequences belonging at each OTU relative to the total number of sequences for the considered factor. % of samples: Percentage of samples in which the OTU was identified.

	OTU ID	Taxon	Functional Guild	Location								Average Defoliation				Total (n = 52)
				Andevalo (n = 16)		S. Aracena (n = 10)		S. Norte (n = 12)		Pedroches (n = 14)		Low (C1) (n = 28)		High (C2) (n = 24)
				Freq. (%)	% of samples	Freq. (%)	% of samples	Freq. (%)	% of samples	Freq. (%)	% of samples	Freq. (%)	% of samples	Freq. (%)	% of samples	Total Freq. (%)	% of Total samples
Oomycetes	OTU_1	s__Phytophthora plurivora	Plant Pathogen	11.1	100	17.5	100	19.7	100	7.1	100	20.9	100	7.7	100	15.2	100
	OTU_6	s__Pythium paroecandrum	Plant Pathogen	6.0	63	21.4	80	0.5	58	0.4	71	11.0	75	11.4	63	7.8	67
	OTU_10	s__Phytophthora psychrophila	Plant Pathogen	1.1	69	5.8	40	11.5	75	1.8	57	7.1	67	2.7	50	6.0	62
	OTU_3	s__Phytophthora quercina	Plant Pathogen	5.5	100	2.7	90	6.1	75	4.0	86	6.0	92	2.4	81	4.7	89
	OTU_9	s__Phytophthora citrophthora	Plant Pathogen	1.5	69	2.9	50	6.7	75	0.4	100	5.2	89	0.5	50	3.5	75
	OTU_17	s__Pythium heterothallicum	Plant Pathogen	5.2	56	4.1	80	1.4	75	1.3	86	3.8	78	10.9	75	3.2	73
	OTU_15	s__Pythium irregulare	Plant Pathogen	8.7	81	1.7	50	0.7	83	0.1	64	2.7	69	9.5	81	3.0	71
	OTU_7	s__Elongis-porangium undulatum	Plant Pathogen	3.9	100	4.6	70	0.4	83	1.3	100	2.9	92	0.8	94	2.6	90
	OTU_4	s__Phytophthora cinnamomi	Plant Pathogen	2.0	56	1.9	30	2.1	50	3.5	64	2.1	58	31.8	38	2.2	52
	OTU_16	g__Pythium sp.	Plant Pathogen	1.4	75	3.2	30	1.4	67	0.1	57	2.0	64	0.4	50	1.7	60
	Total oomycete core biome frequency			46.4		65.8		50.5		20.0		63.8		78.2		49.9
Fungi	OTU_3	s__Mortierella elongata	Soil-Plant Saprotroph - Endophyte	7.5	100	4.7	100	2.8	100	1.8	100	4.7	100	3.9	100	4.4	100
	OTU_2	g__Fusarium sp.	Plant Pathogen-Soil-Plant Saprotroph	4.2	100	3.7	100	3.7	100	1.9	100	3.3	100	3.7	100	3.4	100
	OTU_8	s__Russula praetervisa	Ectomy-corrhizal	2.8	100	0.4	90	2.3	100	1.1	79	1.5	92	1.9	94	1.6	92
	OTU_11	s__Mortierella elongata	Soil-Plant Saprotroph - Endophyte	2.8	100	1.1	80	2.0	75	6.0	100	1.4	86	1.0	100	1.3	90
	OTU_24	g__Solicoccozyma sp.	Unassigned	1.0	100	0.9	100	0.8	100	1.7	100	1.1	100	1.1	100	1.1	100
	OTU_9	g__Thelonectria sp.	Soil-Plant Saprotroph	1.4	100	1.1	100	0.8	100	0.6	100	0.8	100	1.4	100	1.0	100
	OTU_25	g__Penicillium sp.	Soil-Plant Saprotroph	0.6	100	1.3	100	0.7	100	0.7	100	1.0	100	0.6	100	0.9	100
	OTU_51	s__Trichoderma spp.	Soil-Plant Saprotroph	0.6	100	1.1	100	0.5	92	0.7	100	0.8	100	0.7	94	0.7	98
	OTU_48	s__Clonostachys rosea	Soil-Plant Saprotroph	0.6	100	1.3	100	0.2	92	0.3	100	0.6	97	0.8	100	0.7	98
	OTU_15	s__Trichoderma spp.	Soil-Plant Saprotroph	1.1	94	0.2	100	1.2	92	0.5	93	0.9	92	0.3	100	0.7	94
	Total fungal core biome frequency			22.6		15.8		15.0		15.3		16.0		15.2		15.8