@article{fdi:010091291,
  title = {{C}ommunity ionomics reveals a diversity of mineral nutrition in a species-rich shrubland on infertile soil},
  author = {{H}ocedez, {J}. and {G}otty, {K}. and {H}equet, {V}anessa and {C}hay, {S}. and {L}{\'e}opold, {A}. and {D}ray, {S}. and {P}illon, {Y}ohan},
  editor = {},
  language = {{ENG}},
  abstract = {{Q}uestions{H}igh species richness is observed in certain shrublands on infertile substrates. {M}ineral nutrients are likely to be the primary limiting resources in these ecosystems, and below-ground plant interactions may be crucial to understanding their diversity. {U}sing ionomics, we investigated whether there were nutritional variations between plant species that coexist in a shrubland located in an edaphically extreme environment. {L}ocation {N}ew {C}aledonia. {M}ethods{W}e set up a 20 m x 20 m plot in a diverse shrubland ("maquis") on ultramafic (infertile) substrate, in which we sampled all 475 plants taller than 1 m and characterized their ionome (22 elements).{R}esults{I}n our study, 37 species were identified in the plot, representing all major forms of mycorrhizal symbioses, as well as nitrogen-fixing plants, cluster rooted and parasitic plants. {N}otably, both nickel hyperaccumulating and manganese hyperaccumulating species were present. {H}ypervolume approaches were used to assess ionome overlap among the nine most abundant species, with the results revealing limited overlap. {M}oreover, it was observed that the rarest species in the plot also had the most functionally distinct features. {C}onclusions {D}ifferent nutritional strategies were present in the plot, as demonstrated by the variety of root symbioses and leaf ionomes. {O}ur findings indicate coexistence of multiple species within this infertile shrubland may be achieved by species partitioning into different highly specialized biogeochemical niches. {T}he high species richness of certain shrublands on infertile substrates remains poorly understood. {W}e designed a plot on ultramafic substrate in {N}ew {C}aledonia where we characterized the ionome (22 elements) of all 475 plants. {W}e found a diversity of root symbioses (mycorrhiza) represented. {H}ypervolume and functional rarity analyses revealed differences in elemental spaces, including metal hyperaccumulation. {O}ur results suggest that partitioning into different biogeochemical niches may account for the coexistence of multiple species.},
  keywords = {biogeochemical niche ; ionomics ; mycorrhiza ; {OCBIL} ; open ecosystems ; serpentine ; symbiosis ; {NOUVELLE} {CALEDONIE}},
  booktitle = {},
  journal = {{J}ournal of {V}egetation {S}cience},
  volume = {35},
  numero = {5},
  pages = {e13301 [12 p.]},
  ISSN = {1100-9233},
  year = {2024},
  DOI = {10.1111/jvs.13301},
  URL = {https://www.documentation.ird.fr/hor/fdi:010091291},
}