Vegetation change inferred from the pollen record in recent sediments from around the Lagos-East coastal environment (SW Nigeria)
Recent 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%), Cype...
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| Format: | Article |
| Language: | English |
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W. Szafer Institute of Botany, Polish Academy of Sciences
2019-06-01
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| Series: | Acta Palaeobotanica |
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| Online Access: | https://acpa.botany.pl/Vegetation-change-inferred-from-the-pollen-record-in-recent-sediments-from-around,118479,0,2.html |
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| author | LINUS AJIKAH OLUSOLA ADEKANMBI OLUWATOYIN OGUNDIPE |
| author_facet | LINUS AJIKAH OLUSOLA ADEKANMBI OLUWATOYIN OGUNDIPE |
| author_sort | LINUS AJIKAH |
| collection | DOAJ |
| description | Recent 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. |
| first_indexed | 2024-04-11T06:06:38Z |
| format | Article |
| id | doaj.art-9ff243e4fdce44a9a0e9585b6bb0af73 |
| institution | Directory Open Access Journal |
| issn | 2082-0259 |
| language | English |
| last_indexed | 2024-04-11T06:06:38Z |
| publishDate | 2019-06-01 |
| publisher | W. Szafer Institute of Botany, Polish Academy of Sciences |
| record_format | Article |
| series | Acta Palaeobotanica |
| spelling | doaj.art-9ff243e4fdce44a9a0e9585b6bb0af732022-12-22T04:41:28ZengW. Szafer Institute of Botany, Polish Academy of SciencesActa Palaeobotanica2082-02592019-06-0159116517510.2478/acpa-2019-0004118479Vegetation change inferred from the pollen record in recent sediments from around the Lagos-East coastal environment (SW Nigeria)LINUS AJIKAH0OLUSOLA ADEKANMBI1OLUWATOYIN OGUNDIPE2Laboratory of Palynology and Palaeobotany, Department of Botany, Faculty of Science, University of Lagos, NigeriaLaboratory of Palynology and Palaeobotany, Department of Botany, Faculty of Science, University of Lagos, NigeriaLaboratory of Palynology and Palaeobotany, Department of Botany, Faculty of Science, University of Lagos, NigeriaRecent 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.https://acpa.botany.pl/Vegetation-change-inferred-from-the-pollen-record-in-recent-sediments-from-around,118479,0,2.htmlpollenholocenevegetation changesouth-western nigeria |
| spellingShingle | LINUS AJIKAH OLUSOLA ADEKANMBI OLUWATOYIN OGUNDIPE Vegetation change inferred from the pollen record in recent sediments from around the Lagos-East coastal environment (SW Nigeria) Acta Palaeobotanica pollen holocene vegetation change south-western nigeria |
| title | Vegetation change inferred from the pollen record in recent sediments from around the Lagos-East coastal environment (SW Nigeria) |
| title_full | Vegetation change inferred from the pollen record in recent sediments from around the Lagos-East coastal environment (SW Nigeria) |
| title_fullStr | Vegetation change inferred from the pollen record in recent sediments from around the Lagos-East coastal environment (SW Nigeria) |
| title_full_unstemmed | Vegetation change inferred from the pollen record in recent sediments from around the Lagos-East coastal environment (SW Nigeria) |
| title_short | Vegetation change inferred from the pollen record in recent sediments from around the Lagos-East coastal environment (SW Nigeria) |
| title_sort | vegetation change inferred from the pollen record in recent sediments from around the lagos east coastal environment sw nigeria |
| topic | pollen holocene vegetation change south-western nigeria |
| url | https://acpa.botany.pl/Vegetation-change-inferred-from-the-pollen-record-in-recent-sediments-from-around,118479,0,2.html |
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