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ARU pioneering mountain range-expanding project

26 July 2021 | Story Nonsindiso Qwabe | Photo Nonsindiso Qwabe

ARU Read more web — On top of the Drakensberg. The ARU and Witsieshoek Mountain Lodge research team are, from the left: Grant Martin, Dr Ralph Clark, Jan van Niekerk, Prof Aliza le Roux, Prof Peter Taylor, and Dr Sandy Steenhuisen.

All mountains around the world have native and non-native species that are expanding their ranges quite dramatically; however, little research has been conducted towards understanding the long-term redistribution of species and the effects of global change on biodiversity.

The Afromontane Research Unit (ARU) on the University of the Free State Qwaqwa Campus – as part of the Mountain Invasion Research Network – has secured a two-year EU Horizon 2020 project under the Department of Science and Innovation, which will be looking at the mechanisms underlying the success and impact of range-expanding species on biodiversity and ecosystem functioning.

On Monday 19 July 2021, the ARU took a few of its researchers on a scenic helicopter ride to the summit of the Drakensberg for an alpine field-experiment site inspection of the Mont-aux-Sources peak, one of the highest sections of the Drakensberg range. This site has been identified for the project which the research unit will be leading on mountain research.

ARU Director, Dr Ralph Clark, said the project would explore the effects of global change, biological invasions (when species invade new geographic regions), as well as climate and land-use change. He said experiments were needed to explore the various possibilities and to test the extent to which species respond to experimental treatments. The project would therefore be conducting experiments for two years using open-top chambers – causing an increase in temperature of 3 or 4 degrees to what you find naturally – on plant species from lower down to the top of the mountain, to see how they function. “This will give us an idea of whether they will be able to survive in global warming scenarios. If temperatures get warmer, we might start seeing a lot of plants up here that we wouldn’t otherwise find here.”

Dr Clark said little is known about the long-term monitoring of species distribution and the effects of global change. Implementing the project in the Maloti-Drakensberg alpine area will therefore put the area in the global mountain research arena. The elevational gradient in the Maloti-Drakensberg Mountains provides space to explore the key processes underlying the variation in species elevation with climate change. “One of the things we don’t know much about are alpine systems. We are hoping to establish a long-term alpine research site and try to add as many studies as we can. The more science we can bring up here, the more we can know about mountain life. What happens on mountains has a lot of impact on social dynamics.

“This project is looking to see what is driving range expansion. Every mountain has its own context. In the Swiss alpine, fires are not a big factor, but fires are one of the biggest factors on our mountains. Some of our native and non-native species are therefore fire-driven, so as fire increases, you might have them spreading faster.”

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Prestigious awards, membership and two A-ratings from the NRF indicate a boom in research

2014-12-04

Several UFS researchers were honoured with awards this year. This includes, from the left: Prof Jeanet Conradie from the Department of Chemistry, Dr Aliza le Roux from the Department of Zoology and Entomology on the Qwaqwa Campus of the UFS, Profs Jonathan Jansen, Vice-Chancellor and Rector of the UFS.
Photo: Hannes Pieterse

The University of the Free State (UFS) had several highlights in the field of research this year. This includes two A-ratings, which were awarded by the National Research Foundation (NRF) to Prof Maxim Finkelstein from the Department of Mathematics and Actuarial Science, and Prof Melanie Walker, Senior Research Professor and Director of the Centre for Research on Higher Education and Development (CRHED) and DST/NRF Chair in Higher Education and Human Development.

Prof Finkelstein’s A2-rating makes him the only A-rated researcher in ‘Probability and Statistics’ regarding Mathematical Sciences in the country. Prof Walker was evaluated in the division for Research, Innovation Support and Advancement and received an A1-rating.

Prof Jonathan Jansen, Vice-Chancellor and Rector of the UFS, considers these ratings as one of the clearest signs that the standard for research across the institution has increased significantly.

Prof Jansen was honoured with the Academy of Science of South Africa’s (ASSAf’s) Science-for-Society Gold Medal for his outstanding achievement in scientific thinking to the benefit of society.

"An award such as this recognises the power of science and scholarship to improve the human condition," Prof Jansen said.

A further highlight at ASSAf’s prestigious annual awards ceremony was the induction of Prof Jeanet Conradie from the Department of Chemistry and Dr Aliza le Roux from the Department of Zoology and Entomology on the UFS’s Qwaqwa Campus as new members of ASSAf.

Prof Conradie was also this year’s first runner-up in the senior category for Distinguished Women Researchers: Physical and Engineering Science in the Department of Science and Technology’s 2014 Women in Science Awards.

Prof Corli Witthuhn: Vice-Rector: Research, describes Prof Conradie as a highly productive researcher who publishes in high-impact journals.

“Not only is she the first female professor in the Department of Chemistry, but she also has extensive international networks and collaboration which elevates the impact of her work even further,” Prof Witthuhn said.

Dr Le Roux is one of ten young researchers inaugurated as members of the South African Young Academy of Science (SAYAS). She was also elected to serve on the executive committee of SAYAS. According to Prof Witthuhn, Dr Le Roux is an outstanding young scientist.

“I am very excited about the young researchers on our Qwaqwa Campus, with Aliza as one of the leaders, and I am looking forward to what they will achieve in the next five years,” she said.

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