@article{fdi:010049189,
  title = {{W}estern equatorial {A}frican forest-savanna mosaics : a legacy of late {H}olocene climatic change?},
  author = {{N}gomanda, {A}. and {C}hepstow-{L}usty, {A}. and {M}akaya, {M}. and {F}avier, {C}. and {S}chevin, {P}. and {M}aley, {J}. and {F}ontugne, {M}. and {O}slisly, {R}ichard and {J}olly, {D}.},
  editor = {},
  language = {{ENG}},
  abstract = {{P}ast vegetation and climate changes reconstructed using two pollen records from {L}akes {M}aridor and {N}gu{S}ne, located in the coastal savannas and inland rainforest of {G}abon, respectively, provide new insights into the environmental history of western equatorial {A}frican rainforests during the last 4500 cal yr {BP}. {T}hese pollen records indicate that the coastal savannas of western equatorial {A}frica did not exist during the mid-{H}olocene and instead the region was covered by evergreen rainforests. {F}rom ca. 4000 cal yr {BP} a progressive decline of inland evergreen rainforest, accompanied by the expansion of semi-deciduous rainforest, occurred synchronously with grassland colonisation in the coastal region of {G}abon. {T}he contraction of moist evergreen rainforest and the establishment of coastal savannas in {G}abon suggest decreasing humidity from ca. 4000 cal yr {BP}. {T}he marked reduction in evergreen rainforest and subsequent savanna expansion was followed from 2700 cal yr {BP} by the colonization of secondary forests dominated by the palm, {E}laeis guineensis, and the shrub, {A}lchornea cordifolia ({E}uphorbiaceae). {A} return to wetter climatic conditions from about 1400 cal yr {BP} led to the renewed spread of evergreen rainforest inland, whereas a forest-savanna mosaic still persists in the coastal region. {T}here is no evidence to suggest that the major environmental changes observed were driven by human impact.},
  keywords = {},
  booktitle = {},
  journal = {{C}limate of the {P}ast},
  volume = {5},
  numero = {4},
  pages = {647--659},
  ISSN = {1814-9324},
  year = {2009},
  URL = {https://www.documentation.ird.fr/hor/fdi:010049189},
}