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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

RAG resilience shines despite rain

2017-02-07

Winning float for 2017: Armentum, Vergeet-My-Nie,
and Emily
Photo: Lelanie de Wet

Although the 75th RAG festivities were challenged by ominous weather, in true Kovsie spirit students and organisers still made a gleaming success of the day.

Students help to create sunny feeling
On 6 February 2017, the annual float-building activities culminated in the handing over of schoolbags to 150 learners from schools in and around Bloemfontein. This took place at the Rag Farm on the Bloemfontein Campus of the University of the Free (UFS), since the morning procession to Twin City Mall in Heidedal had to be cancelled due to bad weather.

“It is of course a huge disappointment to all of us that the events had to be cancelled, but we are grateful for the rain,” said Karen Scheepers, Head of Kovsie Rag Community Service and Assistant Director: Student Affairs.

The evening KFC Rag procession took place as planned, with students having the option of taking part despite the weather. Unfortunately, the Chevrolet Music Festival had to be cancelled.

“The very important actors of today are our students who have worked long hours to build the floats and who have worked together to make this rainy day on the outside feel sunny inside,” said Prof Francis Petersen, incoming UFS Vice-Chancellor and Rector, when he addressed the crowd at the Rag Farm. Prof Petersen will take up office on 1 April 2017.

Armentum, Vergeet-My-Nie, and Emily take honours
Armentum, Vergeet-My-Nie, and Emily Hobhouse were the overall winners of the 2017 Rag float-building. “It was worth the hard work. Always remember to ask for advice during float-building,” said Pieter Kotze, RC Rag of Armentum residence on the Bloemfontein Campus. “I also want to thank both the RC Rag from Vergeet-My-Nie and Emily Hobhouse.”

The float theme was Proudly South African, and the winning float encapsulated it with local flavours such as Chappies, a Rooibos tea box and a Lion matchsticks box. They also went the extra mile by incorporating each hostel’s logo within a Chappie design.

The Central Rag Committee would like to thank all their sponsors who made the events possible. The Rag Coronation Ball will take place on 17 February 2017, where the new Rag Queen and Mr Rag will be crowned.

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