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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 Alumni Honours three former Students
2006-02-21

Three alumni of the University of the Free State will be awarded the prestigious Kovsie Alumni awards, presented to UFS Alumni annually, on the 10th of March at a Gala Awards Banquet. Alumni of the UFS have chosen Naka Drotské as Kovsie Alumnus for 2005. Harold Verster will receive the Kovsie Alumni Cum Laude Award and Prof Johan Henning, Dean of the Faculty of Law, will receive the Kovsie Alumni National Management Award. These prestigious accolades are awarded annually to honour alumni of the UFS for their exceptional achievements and contribution to the UFS.

Naka Drotské has been chosen as Kovsie Alumnus of the Year for the professional manner in which he led the Cheetah rugby team, which played a determining role in the team’s 2005 Currie Cup victory. The Cum Laude Award is made from time to time to any alumnus for outstanding service or achievement at local, national or international level in his/her specific career domain. Verster receives the Award for his role in the inclusion of the Vodacom Cheetahs as Super 14 team, as well as for his leadership that contributed to the success of the Cheetah rugby team in 2005. The Kovsie Alumni National Management Award for Exceptional Service to the UFS is made from time to time to an individual who has rendered exceptional service to the University. Prof Henning will receive this award for his role in the expansion and development of the Faculty of Law as academic, centre head, department head and, especially, as Dean.

Any Kovsie Alumnus is welcome to attend the Kovsie Alumni Gala Award Banquet that will be held in the Reitz Hall of the UFS Centenary complex. Matthys Roets will be the guest artist at the function and the cost of R80 per head includes a three course meal. If you are interested in attending the banquet, contact Jeannette Boshoff-Jansen at 051-401-3594 or alumni@mail.uovs.ac.za

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