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26 July 2021 | Story Nonsindiso Qwabe | Photo Nonsindiso Qwabe
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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Badminton players bring national titles home
2009-10-27

 

Kovsie badminton players Chris Dednam, Wiaan Viljoen and Roelof Dednam.
 

Badminton players of the University of the Free State again won national titles at the recently completed South African senior badminton championships in Stellenbosch. Where Chris Dednam won a hat trick last year, he had to relinquish two of his titles, fortunately to his team mates, this year.

Annari Viljoen and Chris Dednam retained their mixed doubles title by beating the favourites and first-seeded pair from the Western Province, Dorian James and Michelle Edwards, in the finals with 18-21, 21-19 & 27-25. Annari and Michelle also won the women’s doubles title. They easily (21-13 & 21-12) beat the unseeded pair Lydia and Debbi Godfrey (WP) in the finals.

Wiaan Viljoen teamed up with Dorian James (WP) as the second-seeded pair in the men’s doubles to surprise Chris and Roelof Dednam (first seeded) in the finals with 21-18 & 21-16. Wiaan (first seeded), as well as Chris Dednam (fifth seeded), could not reach the finals in the men’s singles, which left it to their old Kovsie team mate Roelof Dednam to bring the title back to the Free State. Roelof (second seeded) beat the national junior champion and fourth-seeded Jacob Maliekal (Border) with 19-21, 21-13 & 26-24 in the finals.

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