georefid:2007-109680SEDIS Publication Catalogueana.macario@awi.dehttp://sedis.iodp.org/pub-catalogue/informationpointOfContact2011-06-23T00:00:00Zhttp://sedis.iodp.org/pub-catalogue/index.php?id=10.1073/pnas.0401709101<gco:CharacterString>High-resolution vegetation and climate change associated with Pliocene Australopithecus afarensis</gco:CharacterString>2004-01-01publicationgeorefid:2007-109680doi:10.1073/pnas.0401709101Bonnefille, R.Centre National de la Recherche Scientifique, Centre Europeen de Recherche et Enseisgnement des Geosciences de l'Environnement, Aix-en-Provence, FranceauthorPotts, R.Smithsonian Institution, United StatesauthorChalie, F.Universite Montpellier II, FranceauthorJolly, D.Universite de Franche Compte, FranceauthorPeyron, O.authorNational Academy of Sciences, Washington, DC, United StatespublisherdocumentHardcopyProceedings of the National Academy of Sciences of the United States of America101 (33)12125-12129Plio-Pleistocene global climate change is believed to have had an important influence on local habitats and early human evolution in Africa. Responses of hominin lineages to climate change have been difficult to test, however, because this procedure requires well documented evidence for connections between global climate and hominin environment. Through high-resolution pollen data from Hadar, Ethiopia, we show that the hominin Australopithecus afarensis accommodated to substantial environmental variability between 3.4 and 2.9 million years ago. A large biome shift, up to 5 degrees C cooling, and a 200- to 300-mm/yr rainfall increase occurred just before 3.3 million years ago, which is consistent with a global marine delta (super 18) O isotopic shift.completedStratigraphyadaptationAfricaAngiospermaeArabian SeaAustralopithecinaeAustralopithecusAustralopithecus afarensisbiologic evolutionC-13/C-12carbonCenozoicChordataclastic rocksclastic sedimentsclimateclimate changeCyperaceaeDicotyledoneaedustEast AfricaEthiopiaEutheriaGramineaeHadarHadar Formationhigh-resolution methodsHominidaeigneous rocksIndian Oceanisotope ratiosisotopeslacustrine environmentLeg 117LiliopsidaMagnoliophytaMammaliamarlmicrofossilsmiosporesMonocotyledoneaeNeogenenorth-central EthiopiaO-18/O-16Ocean Drilling ProgramODP Site 721ODP Site 722Owen Ridgeoxygenpaleoclimatologypaludal environmentpalynomorphsPlantaePliocenepollenPrimatespyroclasticssedimentary rockssedimentsSpermatophytastable isotopesterrestrial environmentTertiaryTetrapodaTheriatuffTyphavegetationVertebratavolcanic rocksurn:org.iodp:exp:117urnlargerWorkCitationcampaignurn:org.iodp:exp:117:site:721urnlargerWorkCitationstudyurn:org.iodp:exp:117urnlargerWorkCitationcampaignurn:org.iodp:exp:117:site:722urnlargerWorkCitationstudyurn:org.iodp:exp:117urnlargerWorkCitationcampaignEnglishgeoscientificInformation40.350040.390011.060011.0900