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Curiosity about environmental changes drives Dr Katlego Mashiane’s PhD research

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

Professor awarded by Cardiff University for exceptional teaching and research record

2015-10-20

Prof Pieter Duvenage

Cardiff University is one of the best research universities in the United Kingdom (UK) and the world. In 2014, Cardiff was ranked number 2 and 5 among UK universities in the Research Excellence Framework for impact and quality, respectively.

Annually, Cardiff selects and recruits the most outstanding teachers and researchers from across the globe. This year, this institution bestowed on Professor Pieter Duvenage the title of Honorary Professorship in Political Philosophy for his contribution and commitment to philosophical research in South Africa and internationally. Prof Duvenage is Head of the Department of Philosophy at the University of the Free State (UFS).

Prof Duvenage has authored and co-authored four books, publishing almost 40 accredited articles in journals and books. As a distinguished scholar, he displays immense dedication to the investigation of the political implications of intellectual traditions.

Since 1997, Prof Duvenage has been lecturing philosophy as an associate professor, full professor, or visiting professor at various South African and Australian universities. He was appointed as Head of the Department of Philosophy in 2011, where he continues to explore his interests in Phenomenology, Critical Theory, and South African Intellectual History.

His rich academic history had earned him the prestigious five-year Honorary Professorship at Cardiff’s Department of Politics. In 2014, the same university invited Prof Duvenage to be a Professorial Fellow of the Collingwood and British Idealism Centre for an indefinite period.

Professor David Boucher, Director of the Collingwood and British Idealism Centre, has played a crucial role in initiating both processes. According to Prof Duvenage, “Professor Boucher is a respected British academic and a Distinguished Visiting Professor at the University of Johannesburg.”

When Boucher announced the good news, Prof Duvenage was very surprised. “The appointment came as a total surprise. I never studied there [at Cardiff University], therefore it was purely through academic networks.”

Considering Cardiff’s reputation and Prof Duvenage’s exceptional skill sets and values, his relationship with the world-leading university in research is bound to blossom.

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