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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

UFS hosts first International Congress on Calvin Research in Africa

2010-08-31

Present at the Calvin Research Conference were, from the left: Dr Frank Ewerszumrode (OP), Faculty of Catholic Theology at the University of Mainz in Mainz, Germany; Prof. Dr Herman Selderhuis, President of the International Congress on Calvin Research; Prof. Dolf Britz, Director of the Jonathan Edwards Centre Africa at the UFS; and Ntabanyane Tseuoa, Masters student in the Jonathan Edwards Centre at the UFS.
Photo: Leonie Bolleurs

The first International Congress on Calvin Research in Africa was this week presented on the Main Campus of the University of the Free State (UFS) in Bloemfontein. This was the tenth Calvin Research Conference presented. The conference is presented every four years.

The theme of the congress was: Reconciliation in the Theology of Calvin. Presentations were made about, amongst others, Calvin’s viewpoint regarding slavery and social justice. There was also a discussion about the extraordinary interest to record the original Calvin texts in databases and to make it available to researchers worldwide.

According to Prof. Dolf Britz, Director of the Jonathan Edwards Centre at the UFS, the objective of the congress was to study original Calvin sources critically. “An important part of the congress’ work is to publish an important part of Calvin’s work in a comprehensive text critical edition. This process is already well advanced and includes a number of unknown texts,” said Prof. Britz.

With its research on Calvin, the UFS emphasises the study of original theological sources. “This approach makes the Faculty of Theology part of the UFS’s strategy towards internationalisation. This is also one of the reasons why the UFS was selected by Yale University in America as partner in the recent establishment of the Jonathan Edwards Centre Africa,” said Prof. Britz, whose brainchild it was to also include young upcoming researchers with the study of original sources and classical languages such as Latin.

The congress was attended by researchers and academics from across the world. Twenty young, emerging researchers formed part of this group that was invited by the UFS. According to Prof. Britz, these young researchers are the top achievers at their respective universities, such as the North-West University, Stellenbosch University, Mukanyo Theological College in the Pretoria area and the UFS.

At this event, attended by more than 70 world-renowned Calvin scholars from countries like, amongst others, Taiwan, Japan, South Korea, Finland, Switzerland, France, The Netherlands, America, Germany and Hungary; UFS academics like Prof. Eric de Boer, Extraordinary Professor in Classical and Reformed Theology and students like Rev. Ntabanyane Tseuoa from Lesotho, read and presented papers as well.

According to Prof. Britz this congress was a very good opportunity to introduce the UFS to the rest of the world.

Media Release
Issued by: Mangaliso Radebe
Assistant Director: Media Liaison
Tel: 051 401 2828
Cell: 078 460 3320
E-mail: radebemt@ufs.ac.za
31 August 2010

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