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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

Shimlas shock Tuks by staying calm

2016-02-19

Prop Ox Nche was one of the substitutes who had a huge impact against Tuks in Pretoria on 15 February 2016. Nche and other Shimlas substitutes helped their team wipe out a massive deficit. Photo: Johan Roux.

He has never been involved in a match like this in his rugby career.
This is what Neil Claassen had to say about his team’s performance on 15 February 2016, when the Shimlas came up with one of the biggest fight-backs in the history of the Varsity Cup in Pretoria. According to the Shimlas Captain, his bench had a great impact, and this helped in shocking Tuks with 47-46 towards the end. This came after Tuks had been leading 43-15 in the 44th minute.

Great fighting spirit
The Shimlas' fighting spirit, and a new Varsity Cup points system in which converted tries may count up to 11 points, enabled them to wipe out this deficit.
“It was a tough match, especially after being so far behind,” Neil said.
“Coach (Hendro Scholtz) told us during half-time (when we were 15-36 behind) that we should stay calm."
“We weren't completely out of the game. We knew that if we eliminated unnecessary mistakes, we could make it.”

Impact from bench
This is the second consecutive match - the other was against Ikeys in Cape Town - where the Shimlas’ substitutes swayed the match. “The bench made a big difference,” Neil said. “We also scored an 11-point try, which helped a lot.”
The Shimlas’ fullback, Marco Mason, was named Player of the Match. He succeeded with a tricky conversion to gain victory for his team.

Injuries
The eighth man, Nardus Erasmus (knee) and flanker, Fiffy Rampeta (eye socket), sustained injuries, but should be able to play in the first home game against the Madibaz on 22 February 2016. The injured scrumhalf, Zee Mkhabela (concussion), could return for this match.
Shimlas are second on the log, with nine league points after two away matches. Maties has ten league points.

Young Guns get stuck
The University of the Free State (UFS') Young Guns got stuck 8-14 against Tuks in Pretoria on 15 February 2016.
Vishuis, the UFS's residence team, will start their onslaught in the residence league against Dagbreek in Stellenbosch on 22 February 2016.

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