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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

Beauty personified through written word
2016-07-29

Description: Zubeida Jaffer Tags: Zubeida Jaffer

Dr Thozama April, University of Fort Hare
historian, Zubeida Jaffer, current Writer-in-Residence
in the Department of Communication Sciences
at the UFS and author of Beauty of the Heart:
The life and times of Charlotte Mannya Maxeke
and Prof Jonathan Jansen, Vice-Chancellor and Rector
of the UFS at the book launch of Zubeida Jaffer.
Photo: Rulanzen Martin

“It is quite easy to write a book in a professional capacity but very difficult to write a book from the heart.”

These were the words of Prof Jonathan Jansen, Vice-Chancellor and Rector of the University of the Free State (UFS), at the launch of Beauty of the Heart: The life and times of Charlotte Mannya Maxeke by Zubeida Jaffer, the current Writer-in-Residence in the Department of Communication Sciences at the UFS.

Perseverance and dedication yields results

Writing a book from the heart is exactly what Jaffer, an award-winning South African journalist and author, set out to do. “When you make the choice to write a story, you need to be very dedicated,” she said.

As this is Jaffer’s third book, one would think that she would have no difficulty in putting pen to paper. On the contrary, she mentioned that it was, in fact, the hardest book she has written because the narrative was not easy to get hold of.

“I wanted Charlotte’s voice to come through, and it took my team and I three years of research and writing,” she said.

Maxeke’s story helps to shape South African society

The three-person panel, hosted by the UFS Sasol Library and SUN MeDIA, and chaired by Prof Jansen, included Jaffer and Dr Thozama April, University of Fort Hare historian who had done her PHD thesis on Maxeke.

Dr April said that Maxeke’s life story is an inspiring one, as it encourages a rethinking of established narratives. “These established narratives have made it possible for historians and researchers to write about the shaping of South African society,” she said.

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