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21 April 2023 | Story Leonie Bolleurs | Photo Supplied
Striving to make a difference in the field of biodiversity conservation, Dr Katlego Mashiane decided to pursue a PhD in Geography, focusing on the spatial modelling of grassland diversity and nutrients in subalpine environments. He received his PhD during the recent April graduation ceremonies on the Qwaqwa Campus.

In the small village of Ga-Mabotia about 25 km outside of Polokwane, Dr Katlego Mashiane grew up, surrounded by rocky mountains characterised by boulder outcrops, where he interacted with nature from an early age. 

He recently obtained his PhD, majoring in Geography, from the University of the Free State (UFS), which was conferred on him during the April graduation ceremonies that took place on the UFS Qwaqwa Campus. The title of his dissertation is Grass nutrients estimation as an Indicator of rangeland quality using satellite remote.

Predicting the presence of biodiversity and nutrients in an area

Based on the principle that diverse grasslands tend to perform better, environmental changes threaten the resilience and services these grassland ecosystems provide. The study examined how many different types of plants and animals can be found at a particular place to enhance our understanding of the ecosystem’s value to humans, and that biodiversity loss will reduce these ecosystem services. Focusing on spatial modelling of grassland diversity, Dr Mashiane specifically investigated the influence of topography and remotely sensed satellite data on species richness and diversity in subalpine environments, and how they are affected by the availability of grass species. To determine this, he used a random forest machine-learning algorithm to find the best information in the data that could be used to estimate the levels of species richness, diversity, and nitrogen in a protected national conservation park. 

His study discovered that some data types – such as the near-infrared variable and certain vegetation data (EVI and SAVI) – were especially useful for determining the number and variety of species in a certain area. With this information, scientists can create models that predict the presence of different types of biodiversity and nutrients in an area.

Playing a key role in protecting our natural assets

Equipped with this knowledge, one will be able to understand how to protect and preserve different types of biodiversity and promote the nutritional value of both plants and animals in the environment. “Land managers could use this information for conservation strategies,” states Dr Mashiane, who decided to pursue this study because he was curious about how environmental changes will affect species.

“Grasslands provide important ecosystem services underpinning human well-being, and therefore warrant our protection; I would like to play a role in protecting our natural assets and contribute to understanding our biomes, especially in the context of global change,” he says.

In the next five years, Dr Mashiane plans to pursue further research and mentor other students in his field of study.

News Archive

Inaugural lecture explores the compatibility of commercial certainty and constitutionalism
2015-10-15

From the left: Prof Caroline Nicholson,
Prof Elizabeth Snyman van Deventer,
Justice Malcolm Wallis and Dr Lis Lange.

Justice Malcolm Wallis presented his inaugural lecture, entitled “Compatibility of commercial certainty and constitutionalism”, to the Faculty of Law on 17 September, 2015. The occasion was attended by faculty staff, students, and senior members of the Bloemfontein judiciary.

In her welcoming remarks, Prof Caroline Nicholson, Dean of the Faculty of Law at the UFS,  expressed the immense pride the faculty has in hosting such an occasion, and the remarkable work of Justice Wallis in the South African legal fraternity over his forty-year career.

Justice Wallis spoke of the constitution’s important role in ensuring that the law in commercial matters is enforced fairly without the prejudice or undue influence from the desire to obtain or preserve personal advantage. “Try, if you can, to conceive of a society in which commercial relationships are enforced and enforceable purely as a matter of discretion. Ask yourselves:  how would such a society function?” he said.

He reiterated that the role and the rule of law is to guide and protect parties in commercial transactions. It has considerable impact on society in how it is enforced. “Commercial disputes may seem to involve only the parties to the proceedings, but when they involve significant changes to established commercial law, their impact is inevitably wider. Such changes affect other agreements, other relationships, underlying financing transactions, and, in our modern world, contracts of insurance and reinsurance. The latter at least will always have an international dimension,” he said.

He explored specific judgements and the role the concept of “Ubuntu” played in delivering them, the fair enforcement of commercial law, and how this should be an integral part of South African law under the constitution.

 In closing, Justice Wallis stated that “in principle, the existence of a constitution and constitutional rights need not destabilise commercial law, or the reasonable expectations of business people.”

Justice Wallis has received numerous accolades locally and internationally during his long career, including his appointment as a Professor Extraordinary in the Department of Mercantile Law at the University of the Free State in 2014.



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