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A late Quaternary pollen sequence from Mfabeni Peatland, South Africa: Reconstructing forest history in Maputaland

Published online by Cambridge University Press:  20 January 2017

Jemma M. Finch  and
Trevor R. Hill
Jemma M. Finch*
Affiliation:
York Institute for Tropical Ecosystem Dynamics (KITE), Environment Department, University of York, Heslington, York YO10 5DD, UK
Trevor R. Hill
Affiliation:
Discipline of Geography, School of Environmental Sciences, University of KwaZulu-Natal, Private Bag X01, Scottsville 3209, South Africa
*
*Corresponding author. Fax: +44(0) 1904 432998. E-mail addresses:[email protected] (J.M. Finch), [email protected] (T.R. Hill).
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Abstract

This paper documents a continuous ∼ 44,000-yr pollen record derived from the Mfabeni Peatland on the Maputaland Coastal Plain. A detailed fossil pollen analysis indicates the existence of extensive Podocarpus-abundant coastal forests before ∼ 33,000 cal yr BP. The onset of wetter local conditions after this time is inferred from forest retreat and the development of swampy conditions. Conditions during the last glacial maximum (∼ 21,000 cal yr BP) are inferred to have been colder and drier than the present, as evidenced by forest retreat and replacement of swampy reed/sedge communities by dry grassland. Forest growth and expansion during the Holocene Altithermal (∼ 8000–6000 cal yr BP) indicates warm, relatively moist conditions. Previous records from Maputaland have suggested a northward migration of Podocarpus forest during the late Holocene. However, we interpret a mid-Holocene decline in Podocarpus at Mfabeni as evidence of deforestation. Forest clearance during the mid-Holocene is supported by the appearance of Morella serrata, suggesting a shift towards more open grassland/savanna, possibly due to burning. These signals of human impact are coupled with an increase in Acacia, indicative of the development of secondary forest and hence disturbance.

Keywords

Climate changeForest historyMaputalandAfricaPollenHuman impacts
Type
Original Articles
Information
Quaternary Research , Volume 70 , Issue 3 , November 2008 , pp. 442 - 450
Copyright
University of Washington

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Footnotes

1 Fax: +27(0) 33 2605344.

References

Acocks, J.P.H. (1988). Veld Types of South Africa. Memoirs of the Botanical Survey of South Africa. 57, Botanical Research Institute, Pretoria.Google Scholar
Botha, G.A., Scott, L., Vogel, J.C., von Brunn, V., (1992). Paleosols and palaeoenvironments during the Late Pleistocene Hypothermal in northern Natal. South African Journal of Science 88, 508–512.Google Scholar
Coetzee, J.A., (1967). Pollen analytical studies in East and southern Afirca. Palaeoecology of Africa 3, 1–146.Google Scholar
Deacon, J., Lancaster, N., (1988). Late Quaternary palaeoenvironments of southern Africa. Clarendon Press, Oxford.Google Scholar
Eeley, H.A.C., Lawes, M.J., Piper, S.E., (1999). The influence of climate change on the distribution of indigenous forest in KwaZulu-Natal, South Africa. Journal of Biogeography 26, 595–617.Google Scholar
Faegri, K., Iverson, J., (1989). Textbook of pollen analysis. John Wiley and Sons, Chichester.Google Scholar
Grimm, E.C., (1987). CONISS: a FORTRAN 77 program for stratigraphically constrained cluster analysis by the method of incremental sum of squares. Computers and Geosciences 13, 13–35.Google Scholar
Grimm, E.C., (2004). TGView Version 2.0.2. Illinois State Museum, Springfield, IL.Google Scholar
Grundling, P., (1996). The implication of 14C and pollen derived peat ages on the characterisation of the peatlands of the Zululand-Mozambique coastal plain, South Africa. Council for Geoscience Internal Report no. 1996-0119, Pretoria.Google Scholar
Grundling, P., (2002). The role of sea-level rise in the formation of peatlands in Maputaland.. Workshop on the impact of sea level rise: past, present and future. Unpublished conference proceedings, Maputo.Google Scholar
Grundling, P., Baartman, L., Mazus, H., Blackmore, A., (2000). Peat resources of KwaZulu-Natal wetlands: southern Maputaland and the North and South Coast. Council for Geoscience Internal Report no. 2000-0132, Pretoria.Google Scholar
Grundling, P., Mazus, H., (1998). Peat. Wilson, M.G.C., Anhaeusser, C.R. The Mineral Resources of South Africa. Council for Geoscience Handbook no. 16 740.Google Scholar
Grundling, P., Mazus, H., Baartman, L., (1998). Peat resources in northern KwaZulu-Natal wetlands: Maputaland. Department of Environmental Affairs and Tourism, Pretoria.Google Scholar
Hall, M., (1981). Settlement patterns in the Iron Age of Zululand: an ecological interpretation. BAR International Series 119, Oxford.Google Scholar
Hamilton, A.C., (1972). The interpretation of pollen diagrams from highland Uganda. Palaeoecology of Africa 7, 45–149.Google Scholar
Hoffmann, M.T., (1997). Human impact on vegetation. Cowling, R.M., Richardson, D.M., Pierce, S.M. Vegetation of southern Africa Cambridge University Press, Cambridge.507–534.Google Scholar
Hill, T.R., (1992). Contemporary pollen spectra from the Natal Drakensberg and their relation to associated vegetation communities.. Unpublished PhD thesis. Rhodes University, Grahamstown.Google Scholar
Lawes, M.J., (1990). The distribution of the samango monkey (Cercopithecus mitis erythrarchus Peters, 1852 and Ceropithecus mitis labiatus I. Geoffrory, 1843) and forest history in southern Africa. Journal of Biogeography 17, 669–680.CrossRefGoogle Scholar
Low, A.B., and Rebelo, A.G. (1996). Vegetation of South Africa, Lesotho and Swaziland. Department of Environmental Affairs and Tourism, Pretoria.Google Scholar
MacDevette, D.R., MacDevette, D.K., Gordon, I.G., Bartholomew, R.L.C., (1989). Floristics of the Natal indigenous forests. Geldenhuys, C.J. Biogeography of the Mixed Evergreen Forests of Southern Africa 124–145. Ecosystems Programmes Occasional Report no. 45. FRD, Pretoria.Google Scholar
Mazus, H., (1996). Pollen records from Nhlangu Peatland on the Zululand coastal plain. Council for Geoscience Internal Report no. 1996-0234, Pretoria.Google Scholar
Mazus, H., (2000). Clues on the history of Podocarpus forest in Maputaland, South Africa, during the Quaternary, based on pollen analysis. Africa Geoscience Review 7, 75–82.Google Scholar
Mucina, L., and Rutherford, C. (2006). The Vegetation of South Africa, Lesotho and Swaziland. Strelitzia. 19, South African National Biodiversity Institute, Pretoria. 807 pp.Google Scholar
Partridge, T.C., (1997). Cainozoic environmental change in southern Africa, with special emphasis on the last 200 000 years. Progress in Physical Geography 21, 3–22.Google Scholar
Scott, L., (1984). Palynological evidence for Quaternary palaeoenvironments in southern Africa. Klein, R.G. Southern Africa Prehistory and Palaeoenvironments Balkema, Rotterdam.65–80.Google Scholar
Scott, L., (1989). Late Quaternary vegetation history and climatic change in the Orange Free State, South Africa. South African Journal of Botany 1, 107–116.Google Scholar
Scott, L., (1990). Environmental changes reflected by pollen in some Holocene sediments from Transvaal, South Africa and Marion Island, Southern Ocean. South African Journal of Science 86, 464–466.Google Scholar
Scott, L., (1999a). Palynological analysis of the Pretoria Saltpan (Tswaing Crater) sediments and vegetation history in the bushveld savanna biome, South Africa. Partridge, T.C. Tswaing — Investigations into the Origin, Age and Palaeoenvironments of the Pretoria Saltpan Council for Geosciences, Pretoria.143–166.Google Scholar
Scott, L., (1999b). Vegetation history and climate in the savanna biome South Africa since 190,000 ka: a comparison of pollen data from the Tswaing Crater (the Pretoria Saltpan) and Wonderkrater. Quaternary International 57/58, 215–223.Google Scholar
Scott, L., (2000). Pollen. Partridge, T.C., Maud, R.R. The Cenozoic of Southern Africa Oxford University Press, New York.Google Scholar
Scott, L., Steenkamp, M., (1996). Environmental history and recent human influence at Lake Teza, KwaZulu-Natal. South African Journal of Science 92, 348–350.Google Scholar
Scott, L., Vogel, J.C., (2000). Evidence for environmental conditions during the last 20 000 years in southern Africa from 14C in fossil hyrax dung. Global and Planetary Change 26, 207–215.Google Scholar
Scott, L., Cooremans, B., Maud, R.R., (1992). Preliminary palynological evaluation of the Port Durnford formation at Port Durnford, Natal, South Africa. South African Journal of Science 88, 470–474.Google Scholar
Scott, L., Holmgren, K., Talma, A.S., Woodborne, S., Vogel, J.C., (2003). Age interpretation of the Wonderkrater spring sediments and vegetation change in the Savanna Biome, Limpopo province, South Africa. South African Journal of Science 99, 484–488.Google Scholar
Scott, L., Holmgren, K., Partridge, T.C., (2008). Reconciliation of vegetation and climatic interpretations of pollen profiles and other regional records from the last 60 thousand years in the Savanna Biome of Southern Africa. Palaeogeography, Palaeoclimatology, Palaeoecology 257, 198–206.CrossRefGoogle Scholar
Smuts, W.J., (1992). Peatlands of the Natal Mire Complex: geomorphology and characterisation. South African Journal of Science 88, 474–483.Google Scholar
Taylor, R., (1991). The Greater St. Lucia Wetland Park. Natal Parks Board, Pietermaritzburg.Google Scholar
Thamm, A.G., Grundling, P., Mazus, H., (1996). Holocene and recent peat growth rates on the Zululand coastal plain. Journal of African Earth Sciences 23, 119–124.Google Scholar
Turner, S., Plater, A., (2004). Palynological evidence for the origin and development of late Holocene wetland sediments: Mdlanzi Swamp, KwaZulu-Natal, South Africa. South African Journal of Science 100, 220–229.Google Scholar
Venter, C.E., (2003). The vegetation ecology of Mfabeni peat swamp, St. Lucia, KwaZulu-Natal. Unpublished Masters Thesis, Faculty of Natural and Agricultural Science. University of Pretoria, South Africa.Google Scholar
West, A., (1999).: Hunting for humans in forest ecosystems: are the traces of Iron-Age people detectable.. Unpublished Masters of Science thesis, University of Cape Town, South Africa. Google Scholar