@article{fdi:010065383,
  title = {{N}ew {C}aledonia : a {P}leistocene refugium for rain forest lineages of relict angiosperms},
  author = {{P}outeau, {R}obin and {T}rueba, {S}. and {F}eild, {T}. {S}. and {I}snard, {S}andrine},
  editor = {},
  language = {{ENG}},
  abstract = {{A}im {I}n {N}ew {C}aledonia, relictual angiosperm lineages are over-represented. {H}owever, the mechanisms responsible for such a distribution remain unclear. {T}wo key hypotheses are that: (1) the diversity reflects adaptation to ultramafic substrates that ecologically filtered plant colonists; and (2) the diversity stems from wet climatic conditions that have persisted in {N}ew {C}aledonia during the late {Q}uaternary while {A}ustralia and some nearby islands experienced widespread extinction events. {H}ere, we investigate which hypothesis better explains the disharmony of relict angiosperms in {N}ew {C}aledonia. {L}ocation {N}ew {C}aledonia ({S}outh {W}est {P}acific {O}cean). {M}ethods {W}e built species distribution models from herbarium data to determine the environmental correlates for 60 relict angiosperm taxa. {E}nvironmental variables used to characterize habitats included vegetation, substrate, and climate variables. {W}e then tested whether the variety of xylem conduit structures borne by {N}ew {C}aledonian relict angiosperms, which is expected to affect plant hydraulic capacity, was correlated with habitat preference. {F}inally, we analysed species prevalence on different substrates and projected habitat size and distribution to the {L}ast {G}lacial {M}aximum ({LGM}). {R}esults {W}e found a clear habitat preference among relict angiosperms for rain forests located on non-ultramafic substrates, with the exception of taxa bearing true vessels with simple perforation plates, which harboured a wider habitat breadth. {W}e also showed that these rain forest habitats experienced a range reduction and an eastward shift during the {LGM}, forming two refugial areas located on the warm and rainy east coast of {G}rande {T}erre. {M}ain conclusions {P}revalence of relict angiosperms in habitats characterized by low evaporative demand appears to be related to xylem hydraulic limitations. {T}he disharmony of relict angiosperms in {N}ew {C}aledonia therefore arose from the persistence of rain forests in the island despite global fluctuations in climate during the {Q}uaternary that affected floras in the region. {O}ur study offers a new model to explain why certain angiosperm families are disharmonically represented in {N}ew {C}aledonia.},
  keywords = {{A}mborella ; geographical information system ; {N}ew {C}aledonia ; niche ; modelling ; palaeodistribution modelling ; plant-climate interactions ; relictual angiosperms ; xylem anatomy ; {NOUVELLE} {CALEDONIE}},
  booktitle = {},
  journal = {{J}ournal of {B}iogeography},
  volume = {42},
  numero = {11},
  pages = {2062--2077},
  ISSN = {0305-0270},
  year = {2015},
  DOI = {10.1111/jbi.12581},
  URL = {https://www.documentation.ird.fr/hor/fdi:010065383},
}