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05 June 2018 Photo Supplied
Digging up truth South Africa was way different to what you thought
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.

News Archive

Powering the future
2014-07-10

 

Kovsie students with the organisers at the African Student Energy Summit.

Photo: Rirhandzu Marivate

Powering the future. This was the theme of the first-ever African Student Energy Summit. The event was recently hosted by the Cape Peninsula University of Technology (CPUT) in Cape Town. The summit was even more unique, since it was part of a global series of Energy Summits held simultaneously in the US, Mexico and Scotland.

Sixteen Kovsies, together with students from across South Africa, Nigeria, Ghana, Zimbabwe, DRC, Zambia and Cameroon united at this event. The main goal: to confront pressing energy challenges faced by our continent. During roundtable discussions, these students brainstormed issues such as the accessibility of energy, as well as driving efficiency and sustainability through the use of green energy.

Antoinette Nel, a Kovsie honours student in Spatial Planning, said, “Interacting with different speakers and students on green energy possibilities enhanced my understanding of how much can be done to change the current status quo on energy in Africa.”

During a student parliamentary session, the participants had to come up with recommendations on sustainable energy. These will be compiled in a document and sent to the African Union (AU).

“My biggest highlight was understanding the need for energy by most Africans, not for lighting or industrialised activities but rather for daily livelihood, for basic rights and services such as cooking, health and education,” said Justman Suh, also an honours student in Spatial Planning at Kovsies.

“We are creating spaces to challenge Afro-pessimism in Africa through these platforms,” Dr Elizabeth Rasekoala, Chairperson of Green Shift Africa, said during the summit. 



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