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

Linguistic resourcefulness impresses at 15th Student Symposium on the Natural Sciences

2015-11-26

UFS students walk away with more than half the prizes at this year’s Student Symposium on the Natural Sciences.

This year, the fifteenth annual Student Symposium on the Natural Sciences was hosted on the Bloemfontein Campus by the UFS Departments of Chemistry and Physics, together with the South African Academy for Science and Arts (SAAWK).

According to Dr Ernie Langner, Senior Lecturer in the Department of Chemistry, this symposium provides postgraduate students from all over South Africa the opportunity to present their research in Afrikaans, to learn from each other, receive feedback on their work through the review process, and to build networks. If their abstracts are selected for publication in the Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie, it also provides them with further exposure in the broader academic context.

Besides research of the highest quality, this year's symposium had no shortage of linguistic resourcefulness. “Students, accustomed to writing and expressing their research in English, astonished everybody with their beautiful Afrikaans. Outstanding research from honours, master's, and doctoral students was expressed in scientific terminology of the highest standard,” Dr Langner said.

The Student Symposium is the only event (worldwide) where the development of 'elektrostatiese potensiaalkaarte', 'femtosekonde pomp-proef spektroskopie', or 'endokrien-ontwrigtende chemikalieë' is explained step by step. This is where one hears enthusiastic students talking about how hard they are working on 'geïntegreerde drywende sonkragstelsels', or 'geneste virtuele rekenaars binne die wolkstelsel'. The results of hours of hard work in the lab, cold nights behind a telescope, or long midnight sessions in front of the computer, had to be condensed into 15-minute presentations on the synthesis of metal-organic networks, or metal-carbene complexes, the identification of pulsar rhythms, or the refining of rapid-eye technology.

Of approximately forty participants from five universities, eighteen were awarded prizes for their papers and posters. Students from the UFS walked away with more than half of the awards. Jacques Maritz (Physics) and his wife, Elizabeth, (Mathematics and Applied Mathematics) from the UFS were both awarded first place in their respective sessions.

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