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05 June 2018
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Archaeological excavations in the Wonderwerk Cave, north of Kuruman in the Northern Cape.
Research fellow Dr Lloyd Rossouw from the Department of Plant Sciences at the University of the Free State (UFS) recently published an article in the Nature Ecology and Evolution journal with Dr Michaela Ecker from the University of Toronto as lead author, and Dr James Brink, research fellow at the UFS Centre for Environmental Management. The findings described in “The palaeoecological context of the Oldowan-Acheulean in southern Africa” provides the first extensive paleoenvironmental sequence for the interior of southern Africa by applying a combination of methods for environmental reconstruction at Wonderwerk Cave, which have yielded multiple evidence of early human occupation dating back almost two million years ago.
Where water once was
The Wonderwerk Cave is found north of the Kuruman hills (situated in Northern Cape) a 140m long tube with a low ceiling. The surroundings are harsh. Semi-arid conditions allow for the survival of only hardy bushes, trees, and grasses. But during the Early Pleistocene, stepping out of the Wonderwerk Cave you would have been greeted by a completely different site, the researchers found. Using carbon and oxygen stable isotope analysis on the teeth of herbivores (Dr Ecker), fossil faunal abundance (Dr Brink), as well as the analysis of microscopic plant silica remains (phytoliths) excavated from fossil soils inside the cave (Dr Rossouw), the results show that ancient environments in the central interior of southern Africa were significantly wetter and housed a plant community unlike any other in the modern African savanna.
What difference does it make?
While East African research shows increasing aridity and the spread of summer-rainfall grasslands more than a million years ago, the results from this study indicate an interesting twist. During the same period, shifts in rainfall seasonality allowed for alternating summer and winter-rainfall grass occurrences coupled with prolonged wetlands, that remained major components of Early Pleistocene (more or less the period between one and two million years ago) environments in the central interior of southern Africa. That means our human ancestors were also living and evolving in environments other than the generally accepted open, arid grassland model.
Three of UFS Unit for Language Management to international congress
2006-06-12
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Three members of the University of the Free State's (UFS) Unit for Language Management (ULM), namely Prof Theo du Plessis (Director of the ULM), Prof Johan Lubbe (Research Associate of the ULM) and Dr Elbie Truter (Research Associate of the ULM), will be attending the Tenth International Congress of the International Academy of Linguistic Law at the University of Galway, Ireland, from 14-17 June 2006.
This year, the theme of the congress will be “Language Law and Language Rights: The Challenges of Enactment and Implementation”. More than 100 persons will deliver papers at this congress, which enjoys prominent status world-wide. The UFS colleagues are all members of the International Academy of Linguistic Law, and will deliver papers offering perspectives on language regulation within the South African context.
Other South Africans who will also be participating, and with whom the ULM has close professional relationships, are Dr Karel Prinsloo (editor of the well-known journal 50 Plus) and Mr Edward Sambo of the Pan South African Language Board (Pansalb). The ULM’s participation in the congress is the result of a long-term research project, namely, the South African Language Rights Monitor, which was launched three years ago in partnership with Pansalb, and which is also financed by that organisation.
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Prof Theo du Plessis
(Director of the UFS Unit for Language Management) |