Vegetation change inferred from the pollen record in recent sediments from around the Lagos-East coastal environment (SW Nigeria)

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dc.contributor.authorAjikah, L. B.
dc.contributor.authorAdekanmbi, O. H.
dc.contributor.authorOgundipe, O.T.
dc.date.accessioned2019-09-05T16:44:19Z
dc.date.available2019-09-05T16:44:19Z
dc.date.issued2019
dc.description.abstractRecent sediments from the coastal environment of Lagos East, Nigeria, were used to make a palynological reconstruction of the vegetation of the study area and to draw inferences about its palaeoclimate. A total of 8456 palynomorphs were recovered, dominated by pollen grains of Poaceae (13.96%), Cyperaceae (6.23%), Alchornea cordifolia Müll-Arg (8.36%) and Elaeis guineensis Jacq (2.41%). Others were Cyclosorus afer Ching (2.18%), Rhizophora sp. (0.45%), Nephrolepis sp. (1.03%), Celtis sp. (0.25%) and Pteris sp. (0.13%). The composition of the recovered palynomorphs suggests that the past vegetation was predominantly a mosaic of freshwater swamp, with open to dry climate, as indicated by the records of Cyperaceae, Alchornea cordifolia, Elaeis guineensis, Arecaceae, Asteraceae, Acanthaceae and Chenopodiaceae/Amaranthaceae. Radiocarbon dates obtained from two depths (surface and deepest) indicate that the sediments were deposited around the last 103.8 ± 0.4 pMC (percentage Modern Carbon) and 111.9 ± 0.4 pMC, hence in the late Holocene. The study identified fluctuations between wet and dry climatic conditions in the Holocene of this area.en_US
dc.identifier.citationAjikah, L. B., Adekanmbi, O. H. and Ogundipe, O. T. (2019). Vegetation change inferred from the pollen record in recent sediments from around the Lagos-East coastal environment (SW Nigeria).Acta Palaeobotanica 59(1): 165–175en_US
dc.identifier.issn2082-0259
dc.identifier.urihttps://ir.unilag.edu.ng/handle/123456789/5358
dc.language.isoenen_US
dc.publisherSciendoen_US
dc.subjectpollenen_US
dc.subjectHoloceneen_US
dc.subjectvegetation changeen_US
dc.subjectsouth-western Nigeriaen_US
dc.titleVegetation change inferred from the pollen record in recent sediments from around the Lagos-East coastal environment (SW Nigeria)en_US
dc.typeArticleen_US
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