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20 May 2021 | Story Leonie Bolleurs | Photo Leonie Bolleurs
The Maloti-Drakensberg is known as the ’water tower of Southern Africa’, as it is the largest provider of fresh water in the region. If the alpine system collapses, the water production will be detrimentally impacted.

The Afromontane Research Unit (ARU) of the University of the Free State, based in Phuthaditjhaba South Africa, is partnering with several institutions of higher learning, relevant forums, foundations, and policy makers in Africa in an attempt to expand its alpine research.

The research unit is joining forces with the University of Helsinki (Finland) and the National University of Lesotho (NUL) for a National Research Foundation (NRF) award to the University of Pretoria on using fine-scale functional and compositional variation in alpine plants to predict the impact of climate change. According to Dr Ralph Clark, Director of the ARU, this project will expand understanding of the ecology of the alpine zone in the Maloti-Drakensberg, and its similarity (or dissimilarity) with other alpine and tundra environments. 

First step towards sustainability and restoration

A complimentary visit by Alex Hickman, Chair of the African Mountain Research Foundation (AMRF), to the Bvumba Mountains in Zimbabwe, the ARU, and Afriski, laid the psychological foundations for the first two AMRF mountain observatories, as well as gaining support from Afriski as a focus area for alpine studies in the Maloti-Drakensberg. 

Dr Clark explains that the Maloti-Drakensberg is known as the ’water tower of Southern Africa’, as it is the largest provider of fresh water in the region. “The alpine system is critical to this water provisioning function but is under tremendous pressure from intense communal rangeland degradation. If the alpine system collapses, the water production will be detrimentally impacted,” he says.

“Understanding this alpine system holistically is the first step to sustainability and restoration in a social-ecological paradigm,” he adds.

Building capacity for mountain research

The ARU is leading two University Staff Doctorate Programmes (USDPs), both in partnership with the University of Venda, which supports 20 young academics to achieve their doctorates. Dr Clark says while doctoral topics are diverse, they are both focused on building capacity for mountain research in Southern Africa – including the mountain cities of Phuthaditjhaba and Thohoyandou. 

According to him, there are three partners from the United States of America (Appalachian and Colorado State Universities, and the University of Montana) and one partner from the United Kingdom (University of the Highlands and Islands) in the USDPs. Prof Geofrey Mukwada from the Department of Geography and Dr Grey Magaiza from the Department of Sociology are co-ordinating the USDPs.  

The ARU has also attracted one of Southern Africa’s top biodiversity scientists, Prof Peter Taylor, who started at the ARU Department of Zoology and Entomology in January 2021. Dr Clark believes that Prof Taylor – an NRF B3-rated researcher with an H-index of 34 who handed over his SARChI Research Chair to join the ARU – will catapult the ARU to a higher level of regional connectivity (notably with Angola), research outputs, and internal mentoring capacity. Prof Taylor, described as a mammologist and evolutionary biologist, specialises in the systematics, ecology, conservation, and ecosystem services and disservices of small mammals, in particular rodents, bats, and shrews.

Collaboration with two SARChI chairs

The ARU also collaborates with two Department of Science and Innovation NRF centres of excellence (Centre for Biological Control at Rhodes University, and the Centre for Invasion Biology at Stellenbosch University) and one SARChI Chair (Ecosystem Health and Biodiversity in KwaZulu-Natal and the Eastern Cape) on various non-native species in Southern African mountains. 

“The rose (Rosaceae) and grass (Poaceae) plant families are particular problem groups in our mountains. For example, firethorns (Pyracantha species) invade native grassland, taking over valuable grazing land and displacing indigenous species. Nassella grasses similarly displace natural rangeland and render farms unusable – if unchecked, the cost of controlling the nassella can exceed the value of the property. Our research seeks to understand the reproductive ecology of these species better, as well as best practice management,” explains Dr Clark.

In addition, the ARU has an ongoing collaboration on montane pollination systems with the SARChI Chair in Evolutionary Biology at the University of KwaZulu-Natal and the University of Cape Town. Dr Sandy-Lynn Steenhuisen in the Department of Plant Sciences is the ARU champion for both programmes. 

Connecting with policy makers in Lesotho

As of the first quarter in 2020, the ARU was invited to sit on the Maloti-Drakensberg Transfrontier Programme (MDTP): Biodiversity Sub-Committee. This opportunity enables the ARU to connect directly with high-level policy makers in Lesotho and South Africa, and to increase its reach for science-policy connections across the Maloti-Drakensberg region. 

Dr Clark states that partnerships under the MDTP can assist in achieving the ARU’s research goal of ‘the sustainable development of the Maloti-Drakensberg’. According to him, the ARU has proposed a focus in the MDTP on the degradation of the Mont-aux-Sources area. A qualitative site assessment by Dr Clark has, among others, also led to a book chapter being submitted in 2021.

The ARU is also extending its reach to include research on montane wetlands. Together with BirdLife South Africa, they have finalised a memorandum of understanding around montane wetland research, offering the potential for partnering to survey poorly studied montane wetlands for rare biodiversity, notably key endangered bird species. 

Dr Clark says the montane wetland bio-acoustic network has been strengthened through Dr Peter Chatanga (NUL) landing a British Ecological Society grant for bio-acoustic work in Bokong Nature Reserve in Lesotho, in collaboration with Prof Aliza le Roux from the Department of Zoology and Entomology and the Okinawa Institute of Science and Technology in Japan, as well as linking to BirdLife’s programme.

Global Mountain Safeguard Research in Southern Africa

Southern African links grew well in 2020 due to new mountain-focused contacts in Madagascar, Zambia, Malawi, and Réunion through the Global Mountain Safeguard Research (GLOMOS)-led Safeguarding Mountains book project, with Dr Clark being the editor of the African contribution. 

The ARU submitted several research proposals with members of the GLOMOS team, including on water security and civic society in Maloti-a-Phofung Local Municipality; climate change and water provisioning in the Maloti-Drakensberg; and a book (in process) on Phuthaditjhaba as an African mountain city.  

The ARU is also planning the first Southern African Mountain Conference (SAMC2022) in partnership with the AMRF and GLOMOS, which will take place from 14 to 17 March 2022. According to Dr Clark, they seek to draw a strong regional contribution for a better understanding of Southern African mountains as social-ecological systems. “We also aim to form a stronger science-policy-practitioner interface and community of practice for Southern African mountains,” he says. 

News Archive

Higher than expected prevalence of dementia in South African urban black population
2010-09-22

 Prof. Malan Heyns and Mr Rikus van der Poel

Pilot research done by University of the Free State (UFS) indicates that the prevalence of dementia, of which Alzheimer’s disease is only one of the causes, is considerably higher than initially estimated. Clinical tests are now underway to confirm these preliminary findings.

To date it has been incorrectly assumed that dementia is less prevalent among urban black communities. This assumption is strongly disputed by the findings of the current study, which indicates a preliminary prevalence rate of approximately 6% for adults aged 65 years and older in this population group. Previous estimates for Southern Africa have been set at around 2,1%.

The research by the Unit for Professional Training and Services in the Behavioural Sciences (UNIBS) at the UFS and Alzheimer’s South Africa is part of the International 10/66 Dementia Research Group’s (10/66 DRG) initiative to establish the prevalence of dementia worldwide.

Mr Rikus van der Poel, coordinator of the local study, and Prof. Malan Heyns, Principal Investigator, say worldwide 66% of people with dementia live in low and middle income countries. It is expected that it will rise to more than 70% by 2040, and the socio-economic impact of dementia will increase accordingly within this period. 21 September marks World Alzheimer’s Day, and this year the focus is on the global economic impact of dementia. Currently, the world wide cost of dementia exceeds 1% of the total global GDP. If the global cost associated with dementia care was a company, it would be larger than Exxon-Mobil or Wal-Mart.

The researchers also say that of great concern is the fact that South Africa’s public healthcare system is essentially geared toward addressing primary healthcare needs, such as HIV/Aids and tuberculosis. The adult prevalence rate of HIV was 18,1% in 2007. According to UNAIDS figures more than 5,7 million people in South Africa are living with HIV/Aids, with an estimated annual mortality of 300 000. In many instances the deceased are young parents, with the result that the burden of childcare falls back on the elderly, and in many cases elderly grandparents suffering from dementia are left without children to take care of them. “These are but a few reasons that highlight the need for advocacy and awareness regarding dementia and care giving in a growing and increasingly urbanized population,” they say.

Low and middle income countries often lack epidemiological data to provide representative estimates of the regional prevalence of dementia. In general, epidemiological studies are challenging and expensive, especially in multi-cultural environments where the application of research protocols relies heavily on accurate language translations and successfully negotiated community access. Despite these challenges, the local researchers are keen to support advocacy and have joined the international effort to establish the prevalence of dementia through the 10/66 DRG.

The 10/66 DRG is a collective of researchers carrying out population-based research into dementia, non-communicable diseases and ageing in low and middle income countries. 10/66 refers to the two-thirds (66%) of people with dementia living in low and middle income countries, and the 10% or less of population-based research that has been carried out in those regions.

Since its inception in 1998, the 10/66 DRG has conducted population based surveys in 14 catchment areas in ten low and middle income countries, with a specific focus on the prevalence and impact of dementia. South Africa is one of seven LAMICs (low and medium income countries) where new studies have been conducted recently, the others being Puerto Rico, Peru, Mexico, Argentina, China and India.

Mr Van der Poel says participating researchers endeavour to conduct cross-sectional, comprehensive, one-phase surveys of all residents aged 65 and older within a geographically defined area. All centres share the same core minimum dataset with cross-culturally validated assessments (dementia diagnosis and subtypes, mental disorders, physical health, anthropometry, demographics, extensive non-communicable risk factor questionnaires, disability/functioning, health service utilization and caregiver strain).

The local pilot study, funded by Alzheimer’s South Africa, was rolled out through an existing community partnership, the Mangaung University of the Free State Community Partnership Programme (MUCPP).

According to Mr Van der Poel and Prof. Heyns, valuable insights have been gained into the myriad factors at play in establishing an epidemiological research project. The local community has responded positively and the pilot phase in and of itself has managed to promote awareness of the condition. The study has also managed to identify traditional and culture-specific views of dementia and dementia care. In addition, existing community-based networks are being strengthened, since part of the protocol will include the training and development of family caregivers within the local community in Mangaung.

“Like most developing economies, the South African population will experience continued urbanization during the next two decades, along with increased life expectancy. Community-based and residential care facilities for dementia are few and far between and government spending will in all probability continue to address the high demands associated with primary healthcare needs. These are only some of the reasons why epidemiological and related research is an important tool for assisting lobbyists, advocates and policymakers in promoting better care for those affected by dementia.”

Media Release
Issued by: Mangaliso Radebe
Assistant Director: Media Liaison
Tel: 051 401 2828
Cell: 078 460 3320
E-mail: radebemt@ufs.ac.za  
21 September 2010

 

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