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29 August 2025 | Story Precious Shamase
One Health research project
Pictured are Prof Steven Belmain, Dr Hayley Thompson, and Prof Lourens Swanepoel during their visit to South Africa to kick off a collaborative One Health research project aimed at addressing rodent-related health risks in townships – an initiative that unites local and international experts in the pursuit of safer, community-driven solutions.

A collaborative research project is underway in South African townships to combat the pervasive rodent problem and its impact on human health. Led by Prof Peter Taylor, Professor-in-Residence in the UFS Afromontane Research Unit and affiliated with the UFS Department of Zoology and Entomology, the initiative brings together experts from the UK's Natural Resources Institute (NRI), including Prof Steven Belmain and Dr Hayley Thompson, and South African institutions such as the UFS and the University of Venda.

This 'One Health' approach acknowledges the interconnectedness of human, animal, and environmental well-being. The team visited laboratory facilities at the UFS campuses in Bloemfontein and Qwaqwa, the latter being near Phuthaditjhaba township – a key research site alongside Lwamando in Limpopo.

The multidisciplinary project involves local farmers and university departments, integrating expertise in advanced techniques such as high-performance liquid chromatography (HPLC) and mass spectrometry, molecular virology and microbiology, genome sequencing, and parasitology. Social scientists, such as Dr Shingirayi Chamisa, a lecturer in the UFS Department of Industrial Psychology, are also involved to understand community perceptions and current rodent control methods, including the impact on mental health.

The research will investigate the health risks associated with rodent infestations, including food contamination with poison residues and fungal toxins, and the transmission of disease to humans and livestock through direct contact or parasites. Practical trials will evaluate methods to reduce food contamination.

Significantly, the project will explore novel and humane rodent control strategies, such as contraceptive baits, offering a safer alternative to rodenticides. Recent concerns about rodenticide-related deaths in townships have increased pressure for safer, ecological solutions.

This research holds significant promise for developing sustainable and effective solutions to mitigate the negative impact of rodent pests on the health and livelihoods of township residents. The international and local collaboration, guided by a holistic 'One Health' perspective, marks a crucial step towards addressing this challenging issue. Prof Taylor expressed his appreciation for the enthusiastic engagement of all collaborators, highlighting the potential for a truly transdisciplinary project to find meaningful and ecologically sound solutions to rodent-borne pathogens and food contamination in South African townships.

News Archive

Water erosion research help determine future of dams
2017-03-07

Description: Dr Jay le Roux Tags: Dr Jay le Roux

Dr Jay le Roux, one of 31 new NRF-rated
researchers at the University of the Free State,
aims for a higher rating from the NRF.
Photo: Rulanzen Martin

“This rating will motivate me to do more research, to improve outcomes, and to aim for a higher C-rating.” This was the response of Dr Jay le Roux, who was recently graded as an Y2-rated researcher by the National Research Foundation (NRF).

Dr Le Roux, senior lecturer in the Department of Geography at the University of the Free State (UFS), is one of 31 new NRF-rated researchers at the UFS. “This grading will make it possible to focus on more specific research during field research and to come in contact with other experts. Researchers are graded on their potential or contribution in their respective fields,” he said.

Research assess different techniques
His research on water erosion risk in South Africa (SA) is a methodological framework with three hierarchal levels presented. It was done in collaboration with the University of Pretoria (UP), Water Research Commission, Department of Agriculture, Forestry and Fisheries, and recently Rhodes University and the Department of Environmental Affairs. Dr Le Roux was registered for 5 years at UP, while working full-time for the Agricultural Research Council – Institute for Soil, Climate and Water (ARC-ISCW).

Water erosion risk assessment in South Africa: towards a methodological framework
, illustrates the most feasible erosion assessment techniques and input datasets that can be used to map water erosion features in SA. It also emphasises the simplicity required for application at a regional scale, with proper incorporation of the most important erosion-causal factors.

The main feature that distinguishes this approach from previous studies is the fact that this study interprets erosion features as individual sediment sources. Modelling the sediment yield contribution from gully erosion (also known as dongas) with emphasis on connectivity and sediment transport, can be considered as an important step towards the assessment of sediment produce at regional scale. 
 
Dams a pivotal element in river networks

Soil is an important, but limited natural resource in SA. Soil erosion not only involves loss of fertile topsoil and reduction of soil productivity, but is also coupled with serious off-site impacts related to increased mobilisation of sediment and delivery to rivers.

The siltation of dams is a big problem in SA, especially dams that are located in eroded catchment areas. Dr Le Roux recently developed a model to assess sediment yield contribution from gully erosion at a large catchment scale. “The Mzimvubu River Catchment is the only large river network in SA on record without a dam.” The flow and sediment yield in the catchment made it possible to estimate dam life expectancies on between 43 and 55 years for future dams in the area.
 
Future model to assess soil erosion
“I plan to finalise a soil erosion model that will determine the sediment yield of gully erosion on a bigger scale.” It will be useful to determine the lifespan of dams where gully erosion is a big problem. Two of his PhD students are currently working on project proposals to assess soil erosion with the help of remote sensing techniques.

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