Table 1.
Top 10 variable loadings on the first three principal components of the PCA performed on the microbial traits dataset, shown in Fig. 1 and S2
| PC1 | Weight | PC2 | Weight | PC3 | Weight |
|---|---|---|---|---|---|
| ecosystemcategory_human | −0.16 | temperaturerange_mesophilic | 0.19 | growth_in_groups | −0.24 |
| specificecosystem_sediment | 0.16 | temperaturerange_thermophilic | −0.19 | gram_stain_positive | −0.24 |
| ecosystem_environmental | 0.16 | oxygenreq_strictanaero | −0.19 | cellarrangement_singles | 0.21 |
| knownhabitats_host | −0.15 | temperaturerange_hyperthermophilic | −0.18 | cellarrangement_filaments | −0.20 |
| ecosystemsubtype_intertidalzone | 0.15 | knownhabitats_hotspring | −0.17 | sporulation | −0.20 |
| ecosystem_hostassociated | −0.15 | exosystemtype_rhizoplane | 0.17 | energysource_chemoorganotroph | −0.19 |
| habitat_hostassociated | −0.15 | habitat_specialized | −0.16 | cellarrangement_clusters | −0.18 |
| habitat_freeliving | 0.15 | metabolism_methanogen | −0.16 | shape_tailed | −0.18 |
| ecosystemtype_digestivesystem | −0.14 | ecosystemcategory_plants | 0.15 | habitat_terrestrial | −0.18 |
| specificecosystem_fecal | 0.14 | ecosystemtype_thermalsprings | −0.15 | motility | 0.17 |
These three components explain 17%, 10%, and 7% of the total variance, respectively