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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

UV betreur afsterwe van baanbreker

2006-06-21

Die hoofbestuur van die Universiteit van die Vrystaat (UV) het met hartseer verneem van die afsterwe van dr. Barnie Human.

Dr. Human het ‘n B Com- en honneursgraad aan die UV verwerf. Sy bande met die UV strek oor amper veertig jaar. Hy was vanaf 1967-1995 lid van die UV-Raad en was vir meer as dertig jaar betrokke by fondswerwingsprojekte vir die Ontwikkelingstrustfonds van die UV. In 1977 is hy verkies tot nasionale voorsitter van die UOVS Oudstudente Reünie, voorloper van die latere Kovsie-Alumni Bond. Hy is in 1981 deur sy alma mater vereer met ‘n eredoktorsgraad in ekonomie.

Dr. Human, wat deurlopend baie aktief betrokke by die aktiwiteite van die Kovsie- Alumni Bond, het in 1985 die Bond se hoofbestuurstoekenning ontvang vir uitsonderlike diens gelewer aan die UV. Hy is ook in 1993 aangewys as ere-trustee van die Ontwikkelingstrustfonds.

In Oktober 2004 het die UV hom vereer met ‘n Eeufeesmedalje vir sy bydrae tot die ontwikkeling van die UV se fondsinsamelingsaksies, veral ten opsigte van die vestiging van fisiese fasiliteite op die Hoofkampus in Bloemfontein. Sy geldelike bydrae het die UV in staat gestel om die Callie Human-sentrum te bou. Die sentrum is ter nagedagtenis van sy seun, Callie wat in 1967 in ‘n motorfietsongeluk oorlede is, opgerig.

“Dr. Human was ‘n ware steunpilaar vir die UV. Ons is dankbaar dat ons hom in 2004 daarvoor kon vereer met ‘n Eeufeesmedalje voor sy afsterwe,” sê prof. Frederick Fourie, Rektor en Visekanselier van die UV.

“Ons simpatiseer ook met mev. Swannie Human en die egpaar se dogter, mev. Christina Strydom. Dr. Human laat nie net ‘n leemte in die Bloemfonteinse sakewêreld nie, maar ook in die harte van die mense aan die UV wat hom geken het en saam met hom gewerk het,” sê prof. Fourie.

Mediaverklaring
Uitgereik deur: Lacea Loader
Mediaverteenwoordiger
Tel: (051) 401-2584
Sel: 083 645 2454
E-pos: loaderl.stg@mail.uovs.ac.za
21 Junie 2006

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