@article{fdi:010073097,
  title = {{P}recipitation changes over the eastern {B}olivian {A}ndes inferred from speleothem (delta {O}-18) records for the last 1400 years},
  author = {{A}paestegui, {J}. and {C}ruz, {F}. {W}. and {V}uille, {M}. and {F}ohlmeister, {J}. and {E}spinoza, {J}. {C}. and {S}ifeddine, {A}bdelfettah and {S}trikis, {N}. and {G}uyot, {J}ean-{L}oup and {V}entura, {R}. and {C}heng, {H}. and {E}dwards, {R}. {L}.},
  editor = {},
  language = {{ENG}},
  abstract = {{H}ere we present high-resolution delta {O}-18 records obtained from speleothems collected in the eastern {B}olivian {A}ndes. {T}he stable isotope records are related to the regional- to large-scale atmospheric circulation over {S}outh {A}merica and allow interpreting changes in delta {O}-18 during the last 1400 yr as a function of changes in precipitation regimes over the southern tropical {A}ndes. {T}wo distinct phases with more negative delta {O}-18 values, interpreted as periods of increased convective activity over the eastern {A}ndean {C}ordillera in {B}olivia are observed concomitantly with periods of global climate anomalies during the last millennium, such as the {M}edieval {C}limate {A}nomaly ({MCA}) and the {L}ittle {I}ce {A}ge ({LIA}) respectively. {C}hanges in the {B}olivian delta {O}-18 record during the {LIA} are apparently related to a southward displacement of the {I}ntertropical {C}onvergence {Z}one ({ITCZ}), which acts as a main moisture driver to intensify convection over the tropical continent. {D}uring the {MCA}, however, the increased convective activity observed in the {B}olivian record is likely the result of a different mechanism, which implies moisture sourced mainly from the southern tropical {A}tlantic. {T}his interpretation is consistent with paleoclimate records further to the north in the tropical {A}ndes that show progressively drier conditions during this time period, indicating a more northerly position of the {ITCZ}. {T}he transition period between the {MCA} and the {LIA} shows a slight tendency toward increased delta {O}-18 values, indicating weakened convective activity. {O}ur results also reveal a non-stationary anti-phased behavior between the delta {O}-18 reconstructions from {B}olivia and northeastern {B}razil that confirms a continental-scale east-west teleconnection across {S}outh {A}merica during the {LIA}.},
  keywords = {speleothems ; stable isotopes ; {MCA} ; {LIA} ; {B}olivia ; {S}outh {A}merican {M}onsoon ; {BOLIVIE} ; {ANDES} ; {ZONE} {TROPICALE}},
  booktitle = {},
  journal = {{E}arth and {P}lanetary {S}cience {L}etters},
  volume = {494},
  numero = {},
  pages = {124--134},
  ISSN = {0012-821{X}},
  year = {2018},
  DOI = {10.1016/j.epsl.2018.04.048},
  URL = {https://www.documentation.ird.fr/hor/fdi:010073097},
}