FN Archimer Export Format
PT J
TI High-resolution vegetation history of West Africa during the last 145 ka
BT 
AF DALIBARD, Mathieu
   POPESCU, Speranta-Maria
   MALEY, Jean
   BAUDIN, Francois
   MELINTE-DOBRINESCU, Mihaela-Carmen
   PITTET, Bernard
   MARSSET, Tania
   DENNIELOU, Bernard
   DROZ, Laurence
   SUC, Jean-Pierre
AS 1:1;2:1;3:2;4:3,4;5:5;6:6;7:7;8:7;9:8;10:3,4;
FF 1:;2:;3:;4:;5:;6:;7:PDG-REM-GM-LES;8:PDG-REM-GM-LES;9:;10:;
C1 GeoBioStratData Consulting, F-69140 Rillieux La Pape, France.
   Univ Montpellier 2, Dept Paleoenvironm & Paleoclimatol, ISEM, CNRS, F-34095 Montpellier 05, France.
   Univ Paris 06, Univ Sorbonne, Inst Sci Terre Paris iSTeP, CNRS,UMR 7193, F-75005 Paris, France.
   CNRS, Inst Sci Terre Paris iSTeP, UMR 7193, F-75005 Paris, France.
   GeoEcoMar, Bucharest 024053, Romania.
   Univ Lyon 1, CNRS, Lab Geol Lyon Terre, UMR 5276, F-69622 Villeurbanne, France.
   IFREMER, Dept Geosci Marines, F-29280 Plouzane, France.
   IUEM, CNRS, Domaines Ocean, UMR 6538, F-29280 Plouzane, France.
C2 GEOBIOSTRATDATA CONSULTING, FRANCE
   UNIV MONTPELLIER, FRANCE
   UNIV PARIS 06, FRANCE
   CNRS, FRANCE
   GEOECOMAR, ROMANIA
   UNIV LYON, FRANCE
   IFREMER, FRANCE
   UBO, FRANCE
SI AUTRE
   BREST
SE AUTRE
   PDG-REM-GM-LES
IN WOS Ifremer jusqu'en 2018
   copubli-france
   copubli-europe
   copubli-univ-france
IF 1.243
TC 18
TU Centre de coopération internationale en recherche agronomique pour le développement
   Centre national de la recherche scientifique
   Institut de recherche pour le développement
   Institut français de recherche pour l'exploitation de la mer
   Institut national de recherches archéologiques préventives
   Service Hydrographique et Océanographique de la Marine
   Université Claude Bernard - Lyon 1
   Université Pierre et Marie Curie
   Université de Bretagne Occidentale
   Université de Bretagne-Sud
   Université de Cergy-Pontoise
   Université de Montpellier
   École normale supérieure de Lyon
   École pratique des hautes études
UR https://archimer.ifremer.fr/doc/00199/31031/29436.pdf
LA English
DT Article
CR REPREZAI_LEG2
   ZAIANGO2
BO Le Suroît
   L'Atalante
DE ;Central Africa;Climate;Environmental parameters;Late Pleistocene;Pollen;Vegetation dynamics
AB The essential characteristics of the vegetation dynamics of tropical Africa remain only partially known. This study assesses the succession of vegetation-types over Central Africa during the last two glacial/interglacial cycles. Analysis of core KZai 02, which contains pollen from the Zaire River watershed (latitudes 9°N-13°S), allows the investigation of long-term patterns of plant ecosystem development and their climatic causes. Core KZai 02 (18.20 m long) was recovered from 6°24.20′S/9°54.10′E in the uppermost axial edifice of the Zaire deep sea fan. The chronology of this sedimentary archive was established using nannofossils and correlations of pollen and total organic carbon signals with the nearby core GeoB1008. The pollen record indicates that: (i) glacials (MIS 6, 4, 2) are marked by the development of afromontane (Podocarpus) forest at high altitudes when central basin lowlands were occupied by Cyperaceae marshes and savannah; (ii) during interglacials (MIS 1, 5) lowland forests were developed, marked by the successive expansion of pioneer, warm-temperate, rain forests, and mangrove indicating sea-level rise; (iii) glacial-interglacial transitions (MIS 6/5, 2/1) display similar vegetation dynamics. The strong evidence of afromontane forest and the opening of the vegetation during glacials suggest a reduced latitudinal distribution of rainfall by the strengthening of the trade wind system. West African monsoon systems were enhanced during interglacials, allowing the progressive development of lowland forests. The development of rain and pioneer forests during glacial Heinrich stadials suggests an enhancement of water availability in tropical Africa associated with these high latitude events. However, no augmentation of wind activity, described by previous studies, is evidenced by our pollen record. Similar vegetation successions during glacial/interglacial transitions suggest the diachronous and stepped intervention of CO2 (emphasizing the influence of temperature on plant ecosystems) and water availability.
PY 2014
PD JUN
SO Geobios
SN 0016-6995
PU Elsevier France-editions Scientifiques Medicales Elsevier
VL 47
IS 4
UT 000342189100001
BP 183
EP 198
DI 10.1016/j.geobios.2014.06.002
ID 31031
ER

EF