Vegetation density classes
Number
of OTUs OTUs
_1 _2 _3 _4 _5 _6 77
f__MSB-4B10; o__Ktedonobacterales; p__Latescibacteria; g__uncultured-Simkaniaceae; g__Haliangium;
c__Subgroup 6; o__X35; f__SM2D12; p__Proteobacteria; g__Edaphobacter; g__ Acidicapsa; f__cvE6;
f__Xanthomonadales Incertae sedis; p__ TM6 (Dependentiae); g__Gemmatimona
s ; g__Acidibacter ; f__DA111; o__Acidimicrobiales; c__OPB35 soil group; g__Rhizomicrobiu
m
; f__Acidobacteriaceae (Subgroup 1); g__Legionella; g__Aciditerrimonas ; f__Tepidisphaeraceae; g__SM1A02; g__Bdellovibri
o ; c__Candidatus Azambacteria; g__Gaiella ; g__Coxiella; g__Acidobacteriu
m
; f__Fimbriimonadaceae; g__Opitutus; c__TK10;
g__Gemmata; o__Obscuribacterales; g__uncultured-Acidobacteriaceae (Subgroup 1); p__Parcubacteria;
g__Chthoniobacter ; g__Aquicella;
f_
_ODP1230B8.23; g__Pirellula ; g__H16; g__Pir4 lineage; o__SAR324 clade(Marine group B); g__uncultured-Planctomycetaceae; c__Alphaproteobacteria; o__Armatimonadales;
g__Singulisphaera ; g__Planctomyces; g__Candidatus protochlamydia ; g__Candidatus solibacter;
f__Acidobacteriaceae (Subgroup 1); g__BD7-11CL; f__Planctomycetaceae; p__Chloroflexi;
f__Oligoflexaceae; c__Gammaproteobacteria; g__Telmatobacter; p__Saccharibacteria; f__P3OB-42;
c__OM190; c__KD4-96; g__Neochlamydi
a ; g__Acidothermu
s ; g__Bryobacter; g__Sorangium; f__BIrii41;
p__Omnitrophica; k__Bacteria; f__Planctomycetaceae; f__env.OPS 17; c__JG37-AG-4; c__Subgroup 2;
g__Granulicella ; o__HTA4; o__Ktedonobacterales; f__0319-6G20
_1 _2 _3 _4 _5 4 c__Pla4 lineage; c__vadinHA49; o__C0119; p__Woesearchaeota (DHVEG-6) _1 _2 _3 _4 _6 1 g__Jatrophihabitans
_1 _2 _4 _5 _6 2 g__Pseudomonas ; g__Flavobacterium
_2 _3 _4 _5 _6 6 g__uncultured-Cytophagaceae; g__Nocardioides ; g__uncultured-Chitinophagaceae; f__Bradyrhizobiaceae;
g__Mucilaginibacter ; g__Phenylobacterium _1 _2 _3 _4 2 g__Bryocella; g__Anaeromyxobacte _2 _3 _4 _6 1 g__Burkholderia -Paraburkholderiar _3 _4 _5 _6 1 f__Elev-16S-1332
_1 _2 _3 1 f__mle1-27
_2 _5 _6 1 g__Phaselicystis
_4 _5 _6 2 g__Ferruginibacter ; g__Candidatus xiphinematobacter _1 _2 2 g__Isosphaera ; p__FCPU426
_2 _4 1 f__Chitinophagaceae
_3 _5 1 g__Geobacter
_4 _6 1 g__Parafilimonas
_1 11
g__Leptospirillu m
; c__uncultured; o__CPla-3 termite group; g__Metallibacterium ; o__Acidimicrobiales;
g__uncultured-Xanthomonadaceae; g__Ferrithrix ; c__ML635J-21; p__Candidatus Berkelbacteria;
g__Acidiphiliu m
; g__Acidiferrobacter _2 2 g__Terracidiphilus ; f__G12-WMSP1
_3 6 g__PAUC26f; g__Chryseolinea ; c__Cyanobacteria; c__Betaproteobacteria; g__Sphingomona s
; g__AMGG11 _4 2 f__Sandaracinaceae; g__uncultured-Caulobacteraceae
_5 6 c__UA11; g__uncultured-Sandaracinaceae; g__RB41; c__Subgroup 17; c__Subgroup 5; g__11-24 _6 8 g__Dokdonella; f__DA101 soil group; g__uncultured-Gemmatimonadaceae; g__Rhodoplanes; g__Rhizobiu
m ;
g__uncultured-Bradyrhizobiaceae; o__Gaiellales; g__Arenimona s
Table S5. Venn’s table showing shared and unique bacterial OTUs, from the 100 most abundant taxa, between vegetation density classes (A) and plant species (B). The letter in front of the taxon represents the maximum depth of taxonomy (g: genus, f: family, c: class, o: order, p: phylum, k:
kingdom).
A
Plant species Number
of OTUs OTUs
Betula papyrifera Alnu s
rugosa Picea sp.
93
g__uncultured-Acidobacteriaceae (Subgroup 1); p__Parcubacteria; f__MSB-4B10; o__Ktedonobacterales;
g__uncultured-Simkaniaceae; p__Latescibacteria; g__Chthoniobacter ; g__Aquicell a
; g__uncultured- Cytophagaceae; f__ODP1230B8.23; g__Pirellula ; g__Haliangium ; c__Subgroup 6; o__X35; c__Pla4 lineage; f__Chitinophagaceae; f__SM2D12; g__H16; g__Pir4 lineage; g__Nocardioides; p__Proteobacteria;
o__SAR324 clade(Marine group B); g__Edaphobacter ; g__Acidicapsa ; g__uncultured-Planctomycetaceae;
o__Armatimonadales; c__Alphaproteobacteria; f__cvE6; f__Xanthomonadales Incertae sedis;
g__Singulisphaera ; g__Bryocella; p__TM6 (Dependentiae); g__Planctomyces; g__Candidatus protochlamydia; g_ _Gemmatimona
s
; g__Acidibacter; f__DA111; f__Acidobacteriaceae (Subgroup 1);
g__Candidatus solibacter; o_ Acidimicrobiales; c__BD7 -11; f__Planctomycetaceae; p__Chloroflexi;
c__OPB35 soil group; f__Oligoflexaceae; g__uncultured-Chitinophagaceae; f__Bradyrhizobiaceae;
g__Rhizomicrobiu m
; c__Gammaproteobacteria; f__Acidobacteriaceae (Subgroup 1); g__Telmatobacter;
g__Legionella; p__Saccharibacteria; f__P3OB-42; g__Mucilaginibacter; g__Aciditerrimonas; c__OM190;
g__Phenylobacterium; f__Tepidisphaeraceae; g__Geobacter; g__Bdellovibri o
; g__SM1A02; c__KD4-96 c__Candidatus Azambacteria; c__vadinHA49; g__Neochlamydi
a
; g__Gaiella ; g__Anaeromyxobacte r
; g__Bryobacter; g__Acidothermu
s ; g__Coxiella; g__Burkholderia-Paraburkholderia; g_ _Sorangium;
f__BIrii41; p__Omnitrophica; g__Flavobacterium ; k__Bacteria; g__Acidobacteriu m
; f__Planctomycetaceae;
f__env.OPS 17; f__Fimbriimonadaceae; c__JG37-AG-4; c__Subgroup 2; g__Opitutus; g__Granulicella ; c__TK10; o__HTA4; o__Ktedonobacterales; o__C0119; g__Gemmata; o__Obscuribacterales;
g__Jatrophihabitans; f_ _0319-6G20 Betula papyrifera
Picea sp. 3 g__Isosphaera ; p__Woesearchaeota(DHVEG-6); g__AMGG11 Alnu
s
rugosa
Picea sp. 3 f__Elev-16S-1332; f__mle1-27; g__Ferruginibacter
Betula papyrifera 4 g__Pseudomonas; p__FCPU426; g__Terracidiphilus; f__G12-WMSP1 Alnu
s rugosa 4 g__Candidatus xiphinematobacter ; g__Chryseolinea; g__Phaselicystis; c__Cyanobacteria Picea sp. 1 c__Betaproteobacteria
B