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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

Inaugural lecture focuses on intercultural communication
2005-03-15

Prof Johann de Wet, chairperson of the University of the Free State’s (UFS) Department of Communication and Information Studies, will deliver his inaugural lecture on Wednesday 16 March 2005 at 19:00 in the CR Swart Auditorium on campus.

The topic of the presentation is Meeting on the “narrow ridge” in intercultural communication.

Prof de Wet obtained the BA degree in 1977 at from the University of Cape Town, in 1982 an honors degree cum laude in Journalism from the University of  Stellenbosch, in 1985 an MA degree from the University of South Africa (UNISA) and in 1987 the D Litt Et Phil, also from UNISA.

His earlier professional life included being a diplomat stationed in Washington DC, and a SABC journalist.

Prof de Wet’s first stint in the academe was at UNISA (1983-1993) and the UFS (1993-1995).  He was an associate professor at both institutions.  Before returning to the UFS in 2001, Prof de Wet was director of communication in the public service, ministerial spokesperson at national and provincial levels, contributing editor of the Cape Argus, and communication consultant for various public and private sector institutions.

In his academic career of 16 years, Prof de Wet has authored/edited 12 scholarly books.  His other research outputs include some 20 accredited articles and scientific papers (national and international) respectively.  Much of his research has focused on persuasive and political communication, journalism and general communication theory. 

He is the founding and current editor of Communitas, a nationally-accredited academic journal on community communication and information impact.  He was appointed professor and chairperson of the Department of Communication and Information Studies at the UFS in January 2004.

MEDIA RELEASE
Issued by: Lacea Loader
Media Representative
Tel:  (051) 401-2584
Cell:  083 645 2454
E-mail:  loaderl.stg@mail.uovs.ac.za
15 March 2005

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