@article{fdi:010066779,
  title = {{O}ld lineage on an old island : {P}ixibinthus, a new cricket genus endemic to {N}ew {C}aledonia shed light on gryllid diversification in a hotspot of biodiversity},
  author = {{A}nso, {J}. and {B}arrabe, {L}. and {D}esutter-{G}randcolas, {L}. and {J}ourdan, {H}erv{\'e} and {G}randcolas, {P}. and {D}ong, {J}. {J}. and {R}obillard, {T}.},
  editor = {},
  language = {{ENG}},
  abstract = {{F}ew studies have focused on the early colonization of {N}ew {C}aledonia by insects, after the re-emergence of the main island, 37 {M}yr ago. {H}ere we investigate the mode and tempo of evolution of a new endemic cricket genus, {P}ixibinthus, recently discovered in southern {N}ew {C}aledonia. {F}irst we formally describe this new monotypic genus found exclusively in the open shrubby vegetation on metalliferous soils, named 'maquis minier', unique to {N}ew {C}aledonia. {W}e then reconstruct a dated molecular phylogeny based on five mitochondrial and four nuclear loci in order to establish relationships of {P}ixibinthus within {E}neopterinae crickets. {P}ixibinthus is recovered as thesister clade of the endemic genus {A}gnotecous, mostly rainforest-dwellers. {D}ating results show that the island colonization by their common ancestor occurred around 34.7 {M}yr, shortly after {N}ew {C}aledonia re-emergence. {P}ixibinthus and {A}gnotecous are then one of the oldest insect lineages documented so far for {N}ew {C}aledonia. {T}his discovery highlights for the first time two clear-cut ecological specializations between sister clades, as {A}gnotecous is mainly found in rainforests with 19 species, whereas {P}ixibinthus is found in open habitats with a single documented species. {T}he preference of {P}ixibinthus for open habitats and of {A}gnotecous for forest habitats nicely fits an acoustic specialization, either explained by differences in body size or in acoustic properties of their respective habitats. {W}e hypothesize that landscape dynamics, linked to major past climatic events and recent change in fire regimes are possible causes for both present-day low diversity and rarity in genus {P}ixibinthus. {T}he unique evolutionary history of this old {N}ew {C}aledonian lineage stresses the importance to increase our knowledge on the faunal biodiversity of 'maquis minier', in order to better understand the origin and past dynamics of {N}ew {C}aledonian biota.},
  keywords = {{NOUVELLE} {CALEDONIE}},
  booktitle = {},
  journal = {{P}los {O}ne},
  volume = {11},
  numero = {3},
  pages = {e0150920 [34 p.]},
  ISSN = {1932-6203},
  year = {2016},
  DOI = {10.1371/journal.pone.0150920},
  URL = {https://www.documentation.ird.fr/hor/fdi:010066779},
}