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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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Shimlas get back on track

2014-02-26

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The Shimlas overpowered a startled UJ side in Bloemfontein on Monday, scoring seven tries en route to a 52-16 victory in the fourth round of the Varsity Cup competition.

The UFS’s second win in four weeks saw them climb the log standings to a well deserved third position. The Shimlas took an early lead in the match, with blindside flank Oupa Mohoje scoring the opening try from an attacking line-out.

Our boytjies was on a roll, with wing Maphuto Dolo scoring in the corner after a break from a scrum by scrumhalf Kevin Luiters. Kovsies' flyhalf Gouws Prinsloo knocked both conversions over to put our team in a commanding 16-0 lead before the first strategy break. Not long after, the Shimlas scored their third try as left wing Sethu Tom found the corner to make it 21-0. T his was followed by yet another onslaught when Shimlas’ skipper, Joubert Engelbrecht, crashed over for the bonus-point try. Outside centre, Tertius Kruger, put even more pressure on the UJ side when he crossed the try line, leaving the Shimlas with a 34-0 lead at half-time.

Prinsloo slotted a penalty early in the second half for Shimlas, followed by skipper Engelbrecht’s second try. After 15 minutes into the second half, UJ managed to score two converted tries to change the scoreboard to 44-16. T his did, however, not spur the visitors on to complete a comeback and the Shimlas' Divandré Strydom gave our team the last say with one final try.

The scorers:
For FNB UFS-Shimlas:
Tries: Oupa Mohoje, Maphuto Dolo, Sethu Tom, Joubert Engelbrecht (2), Tertius Kruger, Divandré Strydom
Cons: Gouws Prinsloo (5)
Pen: Gouws Prinsloo

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