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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

Media: Moshoeshoe-lesing waardevol

2006-05-29

Hoofartikel
29 Mei 2006

Waardevolle lesing

DIE eerste koning Moshoeshoe-gedenklesing van die Universiteit van die Vrystaat het sommer met die intrapslag prikkelende gedagtes opgelewer en wys dat dit ’n paslike en nuttige manier is om ook die bydraes van swart leiers in Afrika te eer.

Terselfdertyd verskaf die eerste gedenklesing wat deur prof. Njabulo Ndebele, vise-kanselier van die Universiteit van Kaapstad gelewer is, diep stof tot nadenke en debat.

Die gedenklesing kom juis terwyl al hoe meer wenkbroue gelig word oor die skepping van ’n ander forum, die Native Club, waarvan wit Afrikane uitgesluit word.

Dis die geesteskind van mnr. Titus Mafolo, politieke raadgewer van pres. Thabo Mbeki, en die doel daarvan is om ’n forum te verskaf vir Afrika-intelligentsia.

In teenstelling met die ras-eksklusiewe Native Club wat ’n ongelukkige teruggryp is na rasgegronde instellings onder die apartheidsbewind, het prof. Ndebele in die gees van die inklusiewe leierskap van koning Moshoeshoe van Lesotho die gedenklesing opgedra aan al dié mense in Suid-Afrika en elders wat die moed het om hul oorwoë mening uit te druk oor belangrike sake wat die samelewing in die gestig staar.

Hy het tereg bygevoeg dié lesing kom op ’n kritieke punt in Suid-Afrika se nuwe demokrasie.
Prof. Ndebele het daarop gewys dat koning Moshoeshoe – Lesotho het onder sy leierskap mense van verskeie dele van die subkontinent gelok – kon bewys dat verskeidenheid ’n bindende eienskap kan wees.
Jy bereik die grootste eenheid tussen onderskeidende entiteite waar jy relatief vrye ruimte aan hulle gee om hul eiesoortige kenmerke na vore te bring.

Prof. Ndebele het ook opgemerk ’n toenemende aantal hoogs intelligente, sensitiewe en toegewyde Suid-Afrikaners oor die klas-, ras- en kulturele spektrum heen, bely dat hulle soos nooit tevore nie, onseker en kwesbaar voel sedert 1994.

Hierdie koerant spreek ter aansluiting hierby die wens uit dat die ANC-regeringsalliansie sal toesien dat wie ook al die leiding vorentoe in dié alliansie oorneem, ook daardie saambindende eienskappe moet besit wat koning Moshoeshoe gehad het. En wat hy gebruik het om sy land uit te bou en te verenig.

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