@article{fdi:010074068,
  title = {{I}mpact of climate change on the ecology of the {K}yambangunguru crater marsh in southwestern {T}anzania during the {L}ate {H}olocene},
  author = {{C}offinet, {S}. and {H}uguet, {A}. and {B}ergonzini, {L}. and {P}edentchouk, {N}. and {W}illiamson, {D}avid and {A}nquetil, {C}. and {G}alka, {M}. and {K}olaczek, {P}. and {K}arpinska-{K}olaczek, {M}. and {M}ajule, {A}. and {L}aggoun-{D}efarge, {F}. and {W}agner, {T}. and {D}erenne, {S}.},
  editor = {},
  language = {{ENG}},
  abstract = {{I}nstrumental records of temperature and hydrological regimes in {E}ast {A}frica evidence frequent droughts with dramatic effects on population and ecosystems. {S}ources of these climatic variations remain largely unconstrained, partly because of a paucity of {L}ate {H}olocene records. {H}ere, we present a multi-proxy analysis of a 4-m continuous sediment core collected in the {K}yambangunguru crater marsh, in southwest {T}anzania, covering the last 4000 yrs (cal. {BP}). {W}e used microscopic (macro-remains, microfossils, palynofacies, pollen), elemental (carbon, nitrogen contents), molecular (br {GDGT}s, n-alkanes) and compound-specific isotopic (delta {H}-2 n-alkanes) investigations to reconstruct the environmental history of the marsh. {T}he multi proxy record reveals that, 2500 years ago, the marsh underwent a major ecological transition from a lake to a peatland. {T}emperature and hydrological reconstructions evidence warmer and drier conditions between 2200 and 860 cal. {BP}, which probably triggered the establishment of a perennial peatland. {T}his study is one of the first combined temperature and precipitation record of {L}ate {H}olocene in the region and highlights changes in the spatial distribution of the {E}ast {A}frican climate regimes. {S}everal cold periods are observed, between 3300 and 2000 cal. {BP} and since 630 cal. {BP}, the latter corresponding to the {L}ittle {I}ce {A}ge. {M}oreover, wetter conditions are reported during the {M}edieval {C}limate {A}nomaly in contrast to other north-eastern {A}frican records suggesting that {T}anzania is located at the transition between two hydro-climatic zones (north-eastern versus southern {A}frica) and has experienced variable contributions of these two zones over the last millennium.},
  keywords = {{H}olocene ; {P}aleoclimatology ; {P}aleolimnology ; {E}ast {A}frica ; {C}ontinental biomarkers ; {O}rganic geochemistry ; {S}table isotopes ; {P}alynology ; {TANZANIE} ; {KYAMBANGUNGURU}},
  booktitle = {},
  journal = {{Q}uaternary {S}cience {R}eviews},
  volume = {196},
  numero = {},
  pages = {100--117},
  ISSN = {0277-3791},
  year = {2018},
  DOI = {10.1016/j.quascirev.2018.07.038},
  URL = {https://www.documentation.ird.fr/hor/fdi:010074068},
}