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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

Student leaders' hard work rewarded
2013-05-01

Four student leaders on our Bloemfontein and Qwaqwa Campuses each received a scholarship of R15 000. Handré Hay, Estine Cronje, Tsepang Lenka and Jean Vermaas were rewarded for the positive impact they had on the student community in the past three years or more. Student Affairs' scholarship programme acknowledges the contribution of student leaders in the upliftment of the student community.

Read what the four have to say about leadership:

Handré Hay:

Handré Hay, a third-year BSc Physiotherapy student who holds several leadership positions on our Bloemfontein Campus, served for two consecutive years on the committee of Armentum residence. He was also a member of the executive council in the Students' Representative Council (SRC) and served in two SRC portfolios. "Leadership is about being able to serve. When people see that you are willing to put other people's interests above your own and that you are willing to serve unselfishly, despite a position of authority, you will get far," said Handré.

Estine Cronje:

Estine Cronje is the current prime of Marjolein residence. This was the second time the fifth-year Psychology student were re-elected to this position."Leadership is very important to me. One needs leaders in everything you do. I believe a leader should never think herself better than the rest and should work as hard as her team. She should command respect, be disciplined, an example to others, accessible and open to the opinions of other people.

Tsepang Lenka:

Tsepang Lenka is the SRC President of our Qwaqwa Campus. Tsepang, who was twice elected as prime of his residence, has already obtained his BA degree in Public and Business Management. He is currently working on his Postgraduate Certificate in Education (PGCE). "To me leadership means to serve. As a leader you don't lie to people when things are taking the wrong direction, you stand firm and tell the truth; in that way, people don't lose trust in you. The scholarship inspires me to work even harder," Tsepang said.

Jean Vermaas:

Jean Vermaas is a former SRC member who is currently studying for his LLB degree. Some of Jean's achievements include leadership positions of the Juridical Society and the Broad Students' Transformation Forum. In 2012 he was a founder member of the Student Elders' Council."Leadership is of extreme importance to me. It formed me into the person I am now. Leadership isn't always easy, but in the challenges you face you grow as a leader and as an individual."

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