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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

Counterfeit HIV / AIDS drugs must be dealt with
2006-02-16

Some of the guests attending the lecture were from the left Prof Johan Henning (Dean:  UFS Faculty of Law), Dr Jayasuriya, Prof Voet du Plessis (Head: UFS Department of Mercantile Law) and Dr Ezekiel Moraka (Vice-Rector:  Student Affairs at the UFS).
Photo: Stephen Collett

Counterfeit HIV / AIDS drugs must be dealt with

An international legal expert who has worked with various UN agencies has called on governments to deal quickly and decisively with people dealing in counterfeit HIV / AIDS drugs.

The Vice-President of the Global Jurists Foundation and former head of the UNAIDS secretariat in Pakistan, Dr Dayanath Jayasuriya, was speaking at the University of the Free State in Bloemfontein.

Delivering a guest lecture on HIV/ AIDS and human rights in developing countries, Dr Jayasuriya said counterfeit drugs were spreading at an alarming rate throughout the world.  He said that in particular counterfeit HIV / AIDS drugs contribute to the vulnerability of persons living with HIV / AIDS.

“Only a few countries have integrated anti-counterfeit drug provisions into national legislation on medicinal drugs” he said.
According to Dr Jayasuriya, the violation of the rights of people living with HIV / AIDS is continuing despite the fact that many governments have adopted various charters and declarations that are meant to guarantee the human rights of citizens.

He said these violations have included the brutal murder of persons with HIV / AIDS.

Other violations include verbal abuse and physical injuries through acts of torture; deprivation or denial of access to employment; medical facilities, including drugs; accommodation; food; social service benefits; insurance; custody of children, and so on.

“In recorded human history HIV / AIDS is by no means the first ever major public health epidemic to confront human kind. However, none of the other epidemics generated the same degree and intensity of human rights concerns,” Dr Jayasuriya said.

 

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