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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

Statement: Visit of the Portfolio Committee on Education to the UFS

2005-02-25

The chair of the Portfolio Committee on Education (PCE) Prof Shepherd Mayatula has commended the management of the University of the Free State (UFS) for its positive approach to the incorporation of the Vista and Qwaqwa campuses.

According to a statement issued by the university’s communication section, Prof Mayatula said that while there were outstanding issues to address, a platform had been created through the visit of the portfolio committee for the UFS to find solutions.

Speaking at the end of a visit to the Bloemfontein campus of the UFS, Prof Mayatula said: “You know the issues that exist between the three campuses and you know the solutions. You don’t need recommendations from the Committee.”

Earlier today the PCE held a three-way meeting between the PCE, the management of the UFS and the Vista Task Team, representing staff and students at the Bloemfontein campus of the former Vista University .

The Bloemfontein campus of the former Vista University was incorporated into the UFS in January 2004.

The multi-party delegation from the PCE was led by its chairperson, Prof S Mayatula, while the delegation from the UFS was led by the Rector and Vice-Chancellor, Prof Frederick Fourie, while the Vista Task Team was lead by Mr Paseka Mokoena.

Following a presentation by the Vista Task Team and a presentation by the UFS management, other committee members also commended the UFS for the spirit in which outstanding issues were being handled.

It was indicated by portfolio committee members that other universities have far more serious problems than the UFS, and that some of these universities have also been visited by the PCE. The UFS appears to be on the road to be an important pilot case for incorporations and mergers.

The issues that were discussed during today’s meeting included the following:

outstanding issues in the process of incorporating the Bloemfontein campus of the former Vista University into the UFS, including:
staff issues and conditions of service
issues of student aid and pipeline students
governance of the UFS
the long term utilisation of Vista as a site

The Rector and Vice-chancellor of the UFS, Prof Fourie, expressed his appreciation for the role played by the Portfolio Committee on Education in bringing about a common understanding of the transformation issues facing the UFS.

Prof Fourie said the Portfolio Committee’s visit was a useful intervention to bring about a sense of urgency in resolving matters affecting the Vista campus as well as the Qwaqwa campus.

Issued by: Mr Anton Fisher
Director: Strategic Communication
Cell: 072-207-8334
Tel: 051-401-2749
25 February 2005

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