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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

Now is the right time to talk, says Njabulo
2015-04-20


Njabulo Mabaso

Studying at a multicultural campus adds a lot of colour and spice towards every student’s experience, and it also offers some necessary challenges.

This belief is held by the Qwaqwa Campus SRC member responsible for RAG, Community Service & Dialogue, Njabulo Mabaso.

“Our multi-culturalism should be our uniting force, especially at this time in our country. What started as a one-person protest against the Cecil Rhodes statue at UCT should be used to broaden our view in relation to challenges that we are still facing as students and as a country. We need to talk more”, said Mabaso, a final-year BEd FET Languages student.

“Now is the right time for us to really talk about issues affecting us as young adults. Matters of collective interest like pregnancy rates, alcohol and substance abuse, sexism, crime, xenophobia, etc. need to be tackled”, added Mabaso, a weightlifting fanatic.

“As the student leadership, we intend working closely with community structures as we come from the very same communities. We must not wait for Mandela Day to do good.”

“My portfolio, together with Arts and Culture and Sports Affairs portfolios, can create that necessary social cohesion that we as students and our communities need so much.”

Mabaso said that all perceived taboos should be dealt with.

“Our programme this year encourages open dialogue. Nothing should still be treated as a ‘no-go area’ if we are to survive the scourge of HIV. We must talk openly, despite the cultural challenges that might restrict us. We must talk about homophobia. We must talk about rape. In fact, how many students – male and female – really understand what rape is? Does culture even recognise the ‘no’ factor associated with rape? It is important that we should not leave it until it is too late. We must not wait until it is his word against hers. We must deal with these matters now. The right time to engage is now”, he added.

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