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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

New Genetics building on Bloemfontein Campus spirals into new frontiers
2015-09-11

On Thursday 3 September 2015, the Department of Genetics hosted the official opening of its new offices on the Bloemfontein Campus of the University of the Free State (UFS).

Prof Jonathan Jansen, Vice-Chancellor and Rector of the UFS, Prof Neil Heideman, Dean of the Faculty of Natural and Agricultural Sciences, and Prof Paul Grobler, Head of the Department of Genetics cut the ribbon, symbolising the opening of this building with its state-of-the-art facilities.

The new genetics building boasts a new administration block with a reception area, seven offices, a small committee room, and a seminar room for 50 people. Furthermore, the undergraduate laboratory block provides a laboratory for 150 students. The research block has facilities for 30 researchers.

This building also hosts a chemical waste sorting and storage facility. This is a first for the university.

Several sites were investigated for the new building, but due to its size and envisaged second phase, a “green fields” site was found on the western side of the campus. The main entrance caters for visitors from the north, students on foot, and those using the parking area in front of the library. The secondary south entrance is for those who use the dedicated parking area south of the building. The link between these two entrances is the spine of the building, a helix with services/buildings spaced on either side. The helix will be extended in the second phase to keep the circulation and linkage of buildings as simple as possible.

In his opening speech, Prof Grobler gave a breakdown of the history of the Department of Genetics. Today, this department, which opened its doors at the UFS in 1960, is proud of its 131 students and 46 honours students.

According to Major-General Edward Ngokha, Head of the Forensic Science Laboratory, students who graduate from the UFS in the field of genetics make excellent employees. The Forensic Science Laboratory has employed 25 honours students since the BSc Honours degree in Genetics was implemented in 2010.

“The UFS delivers education of high quality and high standards. Thank you for your contribution toward fighting crime by delivering well-prepared, committed employees,” said Major-General Ngokha.

The department presents programmes on population conservation genetics, plant molecular genetics, cytogenetics, forensic genetics, forensic science, human genetics, and behavioural genetics.

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