@article{fdi:010083225,
  title = {{M}orphological and genetic divergence supports peripheral endemism and a recent evolutionary history of {C}hrysiptera demoiselles in the subtropical {S}outh {P}acific},
  author = {{L}iggins, {L}. and {K}ilduff, {L}. and {T}rnski, {T}. and {D}elrieu-{T}rottin, {E}rwan and {C}arvajal, {J}. {I}. and {A}rranz, {V}. and {P}lanes, {S}. and {S}aenz-{A}gudelo, {P}. and {A}guirre, {J}. {D}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he delineation of species and their evolutionary relationships informs our understanding of biogeography and how regional faunas are assembled. {T}he peripheral geography and local environment of reefs in the subtropical {S}outh {P}acific likely promotes the allopatric and adaptive divergence of taxa colonising from the tropics; however, the fauna of this region has been relatively understudied. {H}ere, we address the taxonomic and evolutionary relationships among {C}hrysiptera taxa of the subtropical {S}outh {P}acific. {W}e use meristic counts, morphometrics and genetic markers to characterise the similarities and differences among four taxa restricted to the {S}outh {P}acific region that have strikingly different colouration: {C}. notialis, a taxon restricted to eastern {A}ustralia, {N}ew {C}aledonia, {L}ord {H}owe {I}sland and {N}orfolk {I}sland; {C}. galba, found in the {C}ook {I}slands, southern {F}rench {P}olynesia and {P}itcairn {I}slands; and the two disjunct populations of {C}. rapanui, found in the eastern {P}acific around {R}apa {N}ui ({I}sla de {P}ascua or {E}aster {I}sland) and {M}otu {M}otiro {H}iva ({S}alas y {G}omez) and in the {S}outh-western {P}acific around {R}angitahua ({K}ermadec {I}slands). {O}ur morphometric analysis confirmed that these four taxa, including the two disjunct populations of {C}. rapanui, are morphologically distinct. {H}owever, our genetic analysis revealed that only {C}. rapanui from {R}apa {N}ui was genetically differentiated, whereas {C}. rapanui of {R}angitahua, {C}. galba and {C}. notialis all shared a common haplotype. {F}urthermore, none of the taxa could be consistently differentiated based on individual meristic features. {O}ur study reconciles a formerly perplexing and disjunct distribution for {C}. rapanui, to reveal that {C}. rapanui is an endemic of {R}apa {N}ui and that the {C}hrysiptera of {F}rench {P}olynesia, {R}angitahua, and the {S}outh-western {P}acific have only a very recent history of divergence. {O}ur analyses suggest these subtropical taxa have diverged from a predominantly tropical {C}hrysiptera genus in morphological features important in determining colonisation success, locomotion and feeding ecology.},
  keywords = {{D}isjunct distribution ; {E}comorphology ; {M}arine speciation ; {P}eripheral endemism ; {P}omacentridae ; {T}ropical-subtropical transition ; {PACIFIQUE} {SUD}},
  booktitle = {},
  journal = {{C}oral {R}eefs},
  volume = {41},
  numero = {3},
  pages = {797--812},
  ISSN = {0722-4028},
  year = {2022},
  DOI = {10.1007/s00338-021-02179-7},
  URL = {https://www.documentation.ird.fr/hor/fdi:010083225},
}