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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

Jan Smuts: from country boy to world stage; a reassessment
2017-11-10

 Description: Jan Smuts: van boerseun tot wêreldverhoog Tags: Jan Smuts: van boerseun tot wêreldverhoog

At the book discussion of Jan Smuts: van boerseun tot wêreldverhoog;
'n herwaardering
, were from the left: Con Robinson, Protea Bookshop;
Prof Kobus du Pisani; and Prof André Wessels from the Department
of History at the UFS. 
Photo: Leonie Bolleurs

Prof André Wessels from the Department of History at the University of the Free State (UFS) was one of 20 co-authors of Jan Smuts: van boerseun tot wêreldverhoog; 'n herwaardering – a book compiled under the leadership of the general editor, Prof Kobus du Pisani, from North-West University. This unique history book deals with the different themes in the life of Smuts, rather than describing the events chronologically. 

South Africans are almost afraid of their own history nowadays ... and yet another history book is being launched. Does it make sense? Yes, for two reasons. 

The monster in the dark
One of the ways to overcome fear is through knowledge. The monster in the dark disappears when one understands that the street lights and tree branches are creating interesting shadows. The more one knows about something, the less scary it becomes. 

The Greek Bible 

This was possibly also Smuts’s approach. Knowledge was his passion, and even today he is considered as one of the best students of the University of Cambridge. Although very few people really understand his holism theory, Smuts experienced the complex world in a very simple way – as one – not as lots of different pieces functioning independently of each other. 

Smuts could have made a success of any of his interest fields – law, botany, literature, and philosophy. However, politics laid three wars on his doorstep. While he is regarded as a militarist by some, he was actually a peacemaker. He played a role in the establishment of the League of Nations, and later the United Nations. Incidentally, he continued to read the Greek Bible while on commando during the Anglo-Boer War. 

A colourful character
The second reason for yet another Jan Smuts history book is his fascinating humanness. Time should be spent on colourful characters such as this. It is worthwhile hearing the story of someone who had such a great impact locally and internationally – good or bad. 

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