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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

Prof Finkelstein current and only A-rated researcher in Probability and Statistics in SA
2014-10-28



Prof Maxim Finkelstein
Photo: Johan Roux
Prof Maxim Finkelstein from the Department of Mathematical Statistics at the University of the Free State (UFS) received an A-rating from the National Research Foundation (NRF). This makes him the only A-rated researcher in ‘Probability and Statistics’ regarding Mathematical Sciences in the country.

According to the NRF-rating process, a person with an A-rating is a world leader in his field. 

Prof Jonathan Jansen, Vice-Chancellor and Rector, said: "I am absolutely delighted for Professor Finkelstein and for the fact that this is one of the clearest signs that the UFS has significantly increased its standards of research across the institution as a whole."

Prof Finkelstein says this rating means a great deal to him, since it is a reflection of his dedication and perseverance.

“Of course, the rating is not a goal in itself,” Prof Finkelstein says. “The goal is the high quality research and the rating is just an objective indication of this. Along with the satisfaction, this rating brings the responsibility for maintaining this high status in the future.”

Prof Finkelstein conducts his general research in the field of ‘Probability and Statistics’, but his specific area of focus is ‘Stochastic Modelling’. Prof Finkelstein solely lectures postgraduate students and also mentors a few master’s and PhD students. This affords him the time to mainly concentrate on his research.

“Finally, I wish to emphasise the fact that high-quality research became the prime goal at the UFS,” says Prof Finkelstein. He underscores the efforts of the Vice-Chancellor and the Vice-Rector: Research in creating excellent possibilities for researchers. This has already resulted in remarkable improvements in the UFS’s research outputs – and consequently an increase in the number of rated researchers at the university.

A total of 119 UFS researchers currently have evaluation and rating status from the NRF, says Nico Benson, Deputy Director: Research Development. Currently (October 2014) 29 researchers are still waiting for response from the NRF regarding applications submitted. A total of 16 ratings are already known. On the Qwaqwa Campus of the UFS, five researchers are rated.

Prof Finkelstein's A-rating will become effective from 1 January 2015. Ratings are valid for a period of six years and researchers are invited to apply for re-evaluation in the fifth year.


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