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08 September 2020 | Story Leonie Bolleurs | Photo Falko Buschke
Dr Falko Buschke says the iconic sandstone cliffs of the eastern Free State are key to protecting wild plants and animals from climate change.
The iconic sandstone cliffs of the eastern Free State are often the focus of paintings and postcards. Now, new research shows they also protect wild plants and animals from climate change. This finding is the outcome of a collaborative research effort by the University of the Free State (UFS); BirdLife South Africa; the Vrije Universiteit Brussel and KU Leuven, Belgium, which has recently been published in the journal Biological Conservation.

Mountains key for climate change mitigation

The study, led by Dr Falko Buschke from the Centre for Environmental Management UFS, used satellite data from NASA to track the ecological effects of wet and dry seasons, including the record drought of 2015/16. This showed how vegetation on the cool and moist mountain slopes was less affected by dry spells.

The complex physical terrain allows moisture to accumulate in the shaded parts of the south-facing slopes and ravines. This creates cool and moist habitats for plants and animals that wouldn’t survive in the rest of the hotter and drier landscape.

The team also discovered that these positive effects of mountains do not end at the foot of the mountain, but extend at least 500m into the flatter lowlands. “Presumably because water and nutrients accumulate in these surrounding buffers due to run-off,” says Dr Buschke.

Butterflies find safety on mountains

In addition to their high-tech analysis of the area, the team also relied on old-fashioned fieldwork to monitor butterflies over two years. “The data showed us how these insects find safety on mountains during harsh climate conditions and can then recolonise the rest of the landscape after conditions improve,” explains Dr Buschke. “This gives us clues on the best way to protect nature,” he adds. 

This study took place in the Rooiberge-Riemland Key Biodiversity Area (KBA), an area significant for maintaining global biodiversity. Several species of insects, reptiles, birds and mammals here occur nowhere else on earth. “If they disappear here, they will go extinct from the whole planet forever,” says Dr Falko Buschke. 

Despite its ecological significance, most of the area is covered by commercial farmland. So, the next stage of the project is exploring ways of protecting these important habitats while ensuring that farmers can continue producing food and supporting rural livelihoods. 

“Farmers hold the key to preserving biodiversity,” says Dr Buschke, “so conservation scientists need to work closely with them to ensure that we protect species for future generations.” 

News Archive

UFS hosts the first Southern African Young Scientists Summer Programme
2012-11-26

The University of the Free State is to host the first Southern African Young Scientists Summer Programme (SA-YSSP) from 1 December 2012 to 28 February 2013. 

This will form part of an annual three-month education, academic training and research capacity-building programme jointly organised by the National Research Foundation (NRF), the Department of Science and Technology (DST), and the International Institute for Applied Systems Analysis (IIASA), based in Austria.
 
The NRF, as the National Member Organisation (NMO), in collaboration with DST, has developed a novel and innovative initiative with IIASA to establish the SA-YSSP. This programme was officially launched by the Minister of Science and Technology during November 2011.
 
IIASA is an international research organisation that conducts policy-oriented scientific research in the three global problem areas of energy and climate change, food and water and poverty and equity (www.iiasa.ac.at). South Africa’s engagements with IIASA, and specifically with regard to the SA-YSSP, relate primarily to the DST’s Ten-Year Innovation Plan.
 
Aligned with the YSSP model that is presented by IIASA in Austria annually, the SA-YSSP offers scientific seminars covering themes in both the social and natural sciences. These seminars often have policy dimensions and aim to broaden the participants’ perspectives and strengthen their analytical and modelling skills, further enriching a demanding academic and research programme (www.ufs.ac.za/sa-yssp).
 
Keynote lectures are to be delivered by national and international leaders in their respective research fields, partly drawn from IIASA’s widespread network of alumni and collaborators, as well as from the NRF’s extensive international networks of excellence.
 
The programme is to be enhanced with specific field trips and cultural and heritage excursions that will involve networking with locally based research programmes. Supervisory teams of both IIASA and South African experts will guide a cohort of competitively selected South African and international advanced Ph.D candidates.
 
The programme will be opened on 2 December 2012 at the Centenary Complex by the Minister of Science and Technology, Mr Derek Hanekom, the Director/CEO of IIASA, Prof Pavel Kabat and the Vice-Chancellor and Rector of the UFS, Prof Jonathan Jansen. They will be joined by a number of Nobel Prize Laureates and luminaries representing the government, the diplomatic sector and Higher Education.
 
The programme is directed by a multidisciplinary team at the UFS that includes:
Prof Aldo Stroebel and Prof Neil Roos (Co-Directors)
Prof André Roodt (Dean of SA-YSSP)
Prof Martin Ntwaeaborwa and Dr Henriëtte van den Berg (Deputy-Deans of SA-YSSP)
Dr Priscilla Mensah and Dr Sonja Loots (Strategic Managers)

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