@article{fdi:010067185, title = {{D}istribution patterns of microbial communities in ultramafic landscape : a metagenetic approach highlights the strong relationships between diversity and environmental traits}, author = {{B}ordez, {L}. and {J}ourand, {P}hilippe and {D}ucousso, {M}. and {C}arriconde, {F}. and {C}avaloc, {Y}. and {S}antini, {S}. and {C}laverie, {J}.{M}. and {W}antiez, {L}. and {L}eveau, {A}. and {A}mir, {H}.}, editor = {}, language = {{ENG}}, abstract = {{M}icrobial species richness and assemblages across ultramafic ecosystems were investigated to assess the relationship between their distributional patterns and environmental traits. {T}he structure of microorganism communities in the {K}oniambo massif, {N}ew {C}aledonia, was investigated using a metagenetic approach correlated with edaphic and floristic factors. {V}egetation cover and soil properties significantly shaped the large phylogenetic distribution of operational taxonomic unit within microbial populations, with a mean per habitat of 3.477 (±317) for bacteria and 712 (±43) for fungi. {U}sing variance partitioning, we showed that the effect of aboveground vegetation was the most significant descriptor for both bacterial and fungal communities. {T}he floristic significant predictors explained 43% of the variation for both the bacterial and fungal community structures, while the edaphic significant predictors explained only 32% and 31% of these variations, respectively. {T}hese results confirm the previous hypothesis that the distribution of microorganisms was more structured by the vegetation cover rather than the edaphic characteristics and that microbial diversity is not limited in ultramafic ecosystems.}, keywords = {{NOUVELLE} {CALEDONIE} ; {KONIAMBO} {MASSIF}}, booktitle = {}, journal = {{M}olecular {E}cology}, volume = {25}, numero = {10}, pages = {2258--2272}, ISSN = {0962-1083}, year = {2016}, DOI = {10.1111/mec.13621}, URL = {https://www.documentation.ird.fr/hor/fdi:010067185}, }