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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

Vermeulen’s work on display at Johannes Stegmann Art Gallery
2015-10-26

 

Dot Vermeulen, Anthropology (2014),
Oil on plywood, 300 x 200cm.
Photo: Supplied

“I am primarily fascinated in the travelling or movement of images in different spaces and media. By moving images from one medium into another, or posting and reposting them in different urban and virtual spaces, I ask questions about media presence and space.”

According to the late artist Dot Vermeulen, this is what the work for her Master’s degree was about. She was still completing it at the Department of Fine Arts at the University of the Free State (UFS).

Her work, called Posting Presence, is currently on display at the Johannes Stegmann Art Gallery on the Bloemfontein Campus. The exhibition is running from 1-30 October 2015.

Vermeulen was a junior lecturer at the Department of Fine Arts before she passed away in a car accident in April 2015.

According to Angela de Jesus, curator of the UFS Art Galery, the exhibition would have been part of Vermeulen’s final evaluation for her Master’s degree. She was one of South Africa’s most promising young artists, and won the prestigious Sasol New Signatures art competition in 2013.

In the work she had done in Posting Presence, Vermeulen said the spaces represented were derived from areas under bridges in an urban space where the visual messages left, speak of an accumulation of movement.

Exhibition event

An exhibition event was held on Friday 16 October 2015 at the Johannes Stegmann Art Gallery to celebrate Vermeulen’s work.

Janine Allen-Spies and Prof Suzanne Human, the supervisors of her Master’s degree,spoke about the work to those attending.

Catalogue

De Jesus said a catalogue of Vermeulen’s research for Posting Presence had also been compiled, and would be available at the UFS Sasol Library in order for others to “use her work for further research”.

•    Vermeulen’s work can be seen from 08:30-16:30 daily until 30 October at the Johannes Stegmann Art Gallery on the Bloemfontein Campus.

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