@article{fdi:010066809,
  title = {{A}re the oxygen isotopic compositions of {F}itzroya cupressoides and {N}othofagus pumilio cellulose promising proxies for climate reconstructions in northern {P}atagonia ?},
  author = {{L}avergne, {A}. and {D}aux, {V}. and {V}illalba, {R}. and {P}ierre, {M}. and {S}tievenard, {M}. and {V}imeux, {F}ran{\c{c}}oise and {S}rur, {A}. {M}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}ree ring {O}-18 chronologies from two native species ({F}itzroya cupressoides and {N}othofagus pumilio) in northern {P}atagonia were developed to assess their potential for paleoclimate reconstructions. {T}he five annually resolved cellulose {O}-18 chronologies (two for {F}. cupressoides and three for {N}. pumilio) are located on the {A}ndes along the steep west-to-east precipitation gradient. {O}ver the common 60years long interval, the five site-{O}-18(cell) chronologies exhibit a strong common signal as indicated by the significant mean intercorrelation (r=0.61, p<0.05) and the high percentage (65%) of total variance explained by the first empirical orthogonal function. {A}lthough correlation analyses reveal that the two mean species-{O}-18(cell) chronologies are mainly modulated by {D}ecember-{M}ay temperature, the {N}. pumilio chronology shows a greater sensitivity to record temperature variations (r=0.57, p<0.05). {T}he {O}-18(cell) of {N}. pumilio contains a regional temperature signal representative of a large area in southern {S}outh {A}merica under the influence of the {S}outhern {A}nnular {M}ode. {T}his study indicates that {O}-18(cell) in {N}. pumilio is a promising proxy to reconstruct past variations in temperature in {S}outh {A}merica south of 38 degrees {S}.},
  keywords = {north {P}atagonia ; cellulose ; {O}-18 ; {F}itzroya cupressoides ; {N}othofagus pumilio ; climate change ; {ARGENTINE} ; {CHILI} ; {ANDES} ; {PATAGONIE}},
  booktitle = {},
  journal = {{J}ournal of {G}eophysical {R}esearch : {B}iogeosciences},
  volume = {121},
  numero = {3},
  pages = {767--776},
  ISSN = {2169-8953},
  year = {2016},
  DOI = {10.1002/2015jg003260},
  URL = {https://www.documentation.ird.fr/hor/fdi:010066809},
}