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05 June 2018
Photo Supplied
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.
Science school of excellence for Grade 11 learners launched
2009-04-21
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At the launch of the Science School of Excellence were, from the left: Prof. Neil Heideman, Vice-Dean: Faculty of Natural and Agricultural Sciences at the UFS, Mr John Davids, General Manager, Volksblad, Ms Lorraine Botha, Chief Professional Officer, Centre for Education Development at the UFS, and Rev Kiepie Jaftha, Chief Director: Community Service at the UFS.
Photo: Dalene Harris |
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Science school of excellence for Grade 11 learners launched
The Faculty of Natural and Agricultural Sciences at the University of the Free State (UFS) has launched a project to give top Grade 11 learners an idea of what the faculty has to offer by giving them a ‘university-type’ experience.
The Science School of Excellence Project was launched last week during a function where the university’s schools support programmes were introduced to the management and members of staff.
The project is aimed at Grade 11 learners in the Free State who obtained an overall average of 80% in the 2008 Grade 10 final examinations. This includes a minimum score of 80% (Level 7) in Mathematics and a minimum score of 80% (Level 7) in Physical or Life Science during the same examination. It will be presented on the Main Campus in Bloemfontein from 6-9 July 2009. The closing date for applications is 8 May 2009.
“By presenting this project we want to stimulate learners’ interest in the natural and agricultural sciences, give them an idea of what we have to offer, raise their interest to come and study at the UFS and let them know that we cherish them as role models in their schools and as academic leaders of the future,” said Prof. Neil Heideman, Vice-Dean of the Faculty of Natural and Agricultural Sciences at the UFS.
According to Prof. Heideman the Science School of Excellence will take on the form of small lab and field projects which the learners will carry out under the supervision of staff and postgraduate students. An application fee of R50 per learner must be paid by the school and a maximum of 80 learners can be accommodated. The 80 learners will be selected on a first come, first served basis and a registration fee of R200 per learner has to be paid after they have received notice that they have been accepted. Letters in this regard have been sent to principals of secondary schools in the Free State. “We will also include 10 learners from disadvantaged rural schools, who will be fully sponsored,” said Prof. Heideman.
“Fourteen of our departments will be presenting programmes, during which learners will engage in challenging exercises that will be ‘out of school’ experiences involving laboratory experiments and research activities typical of our faculty,” said Prof. Heideman.
Five other schools support programmes of the UFS were also presented during last week’s launch function. They were the Itjhoriseng Project, which is a skills development course in Mathematics and Physical Sciences for teachers in the Further Education phase; the Science for the Future Project that aims to encourage more learners to enter into science-related studies and careers; the Qwaqwa School Support Programme that aims to improve the year-end results of Grade 12 learners and a project by the South African Foundation for Economic and Financial Education (SAFEFE) and the National Council of Economic Education (NCEE),which aims to improve the economic and financial literacy of teachers.
“The university’s role in the development of teachers and learners in various subject fields has increased tremendously over the past couple of years. Learners are our students of the future. As a university we must do as much as we can to equip them and their teachers with the necessary skills to better themselves,” said Rev. Kiepie Jaftha, Chief Director: Community Service at the UFS at the launch of the Science Schools for Excellence Project.
Media Release
Issued by: Lacea Loader
Assistant Director: Media Liaison
Tel: 051 401 2584
Cell: 083 645 2454
E-mail: loaderl.stg@ufs.ac.za
20 April 2009
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