Latest News Archive

Please select Category, Year, and then Month to display items

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.”

Listen to the article:

News Archive

UFS academic appointed to prestigious academy (ASSAf)

2014-10-07

Another academic of the University of the Free State (UFS), Prof Jeanet Conradie, professor in Chemistry, was invited as newly elected member of the Academy of Science of South Africa (ASSAf).Science and research, by which new concepts are discovered, is her great passion.

Her PhD degree in Chemistry, together with also a strong background in Physics, Computer Science, Mathematics and Applied Mathematics, influenced Prof Conradie’s choice of research interest and expertise to develop gradually in the direction of computational chemistry, which is a beautiful combination of chemistry and physics.

Computational chemistry uses quantum physical principles and mathematical methods to solve chemistry problems via high-performance computerised calculations. Results obtained can be used to predict and understand the behaviour of atoms and molecules in the real world. Chemical reactions and phenomena that are impossible or too dangerous to study experimentally, can also be studied by computational chemistry. Her research team also does experimental laboratory work to combine and compare with the computational analysis. Based on these results, new materials with specific properties are developed.

The Academy of Science of South Africa (ASSAf) aspires to be the apex organisation for science and scholarship in South Africa, recognised and connected both nationally and internationally. Through its membership which represents the collective voice of the most active scholars in all fields of scholarly enquiry, ASSAf aims to generate evidence-based solutions to national problems.

Prof Corli Witthuhn: Vice-Rector: Research at the UFS said: “The UFS is very proud of Prof Conradie, who is also the first female professor in the Department of Chemistry. Jeanet is a highly productive researcher publishing in high-impact journals. She has extensive international networks and collaborations, increasing the impact of her work even more. We are currently awaiting the outcome of her application for NRF rating and believe that she will receive an excellent rating.”

Back

Economic and Management Sciences

Education

Health Sciences

The Humanities

Law

Natural and Agricultural Sciences

Theology and Religion

Open Distance Learning

Business School

We use cookies to make interactions with our websites and services easy and meaningful. To better understand how they are used, read more about the UFS cookie policy. By continuing to use this site you are giving us your consent to do this.

Accept