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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

Inaugural lecture focuses on intercultural communication

2005-03-15

Prof Johann de Wet, chairperson of the University of the Free State’s (UFS) Department of Communication and Information Studies, will deliver his inaugural lecture on Wednesday 16 March 2005 at 19:00 in the CR Swart Auditorium on campus.

The topic of the presentation is Meeting on the “narrow ridge” in intercultural communication.

Prof de Wet obtained the BA degree in 1977 at from the University of Cape Town, in 1982 an honors degree cum laude in Journalism from the University of Stellenbosch, in 1985 an MA degree from the University of South Africa (UNISA) and in 1987 the D Litt Et Phil, also from UNISA.

His earlier professional life included being a diplomat stationed in Washington DC, and a SABC journalist.

Prof de Wet’s first stint in the academe was at UNISA (1983-1993) and the UFS (1993-1995). He was an associate professor at both institutions. Before returning to the UFS in 2001, Prof de Wet was director of communication in the public service, ministerial spokesperson at national and provincial levels, contributing editor of the Cape Argus, and communication consultant for various public and private sector institutions.

In his academic career of 16 years, Prof de Wet has authored/edited 12 scholarly books. His other research outputs include some 20 accredited articles and scientific papers (national and international) respectively. Much of his research has focused on persuasive and political communication, journalism and general communication theory.

He is the founding and current editor of Communitas, a nationally-accredited academic journal on community communication and information impact. He was appointed professor and chairperson of the Department of Communication and Information Studies at the UFS in January 2004.

MEDIA RELEASE
Issued by: Lacea Loader
Media Representative
Tel: (051) 401-2584
Cell: 083 645 2454
E-mail: loaderl.stg@mail.uovs.ac.za
15 March 2005

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