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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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News Archive

Kovsies defend tennis title in Sun City

2017-04-01

The first and second tennis teams of the University of the
Free State were first and fifth respectively among the 14
teams competing in the Egalite Invitational challenge.
Photo: Arne Nel

Although a tournament victory was not the Kovsie tennis team’s main goal, they still managed to outplay the best in the country.

The first team of the University of the Free State (UFS), who have been the champions of the combined USSA format for the past six years, successfully defended its title to end the Egalite Invitational challenge in Sun City unbeaten.

Second team also performing well

On 26 March 2017, the Kovsie first team defeated Puk’s first team 35-20 (games) in the final. Their second team also performed well and won against Tuks’ second team 31-21 to end fifth among the 14 teams. The matches in the tournament, which took place from 24 to 26 March 2017, were played in World Team Tennis format.

In the group stages, the Kovsie first team beat Puk’s second (35-12), Puk’s fourth (35-8), Tuks’ second (35-12), Maties’ first (31-19), Puk’s sixth (35-5), and Tuks’ third (32-16) teams. The team consists of Arne Nel, Christo Koekemoer, Emke Kruger, Lienke de Kock, Ansunica Brits, and Reze Opperman.

Preparation for USSA

Apart from USSA, the Sun City tournament is the other major tournament in which the UFS annually competes. “Of course you want to win, but unlike at USSA, this was not our main focus in Sun City,” says Janine de Kock, the Kovsie team manager. “We wanted to try new combinations and provide exposure to new players.”

A total of five of the 12 players in the two teams were newcomers. They are Lienke de Kock (first team), Handré Hoffman, JC Conradie, Brieta Pienaar, and Daniel de Villiers (all second team). According to Janine de Kock, it was especially important to test new doubles combinations before USSA.

“We always knew the first team is a good team with a chance, but we are very impressed with the second team’s fifth place.”

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