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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

Music programme receives a boost

2004-08-20

Back standing fltr: Mr Peter Guy - Founder and coordinator: Mangaung String Program and snr lecturer at the Musicon; Mrs Francine Duvenage, Manager: Human Resources, Wesbank. Middle fltr: Prof Frederick Fourie, Rector and Vice-Chancellor of the UFS; Mr Apie Otto, Area Manager: Vehicles, Wesbank Free State and Northern Cape. Front fltr: Mr John Minaar (17), Gr 12 Sand du Plessis Secondary School; Repiloe Olifant (14) Gr 10 Navalsig Secondary School; Moeketsi Khang (16) Gr 11 Tsoseletso Secondary School; Stella Benbooi (12) Gr 7 Bochabela Primary School.

The Mangaung String Programme, a partnership between the University of the Free State (UFS) and the Free State Musicon, an institution that falls under the auspices of the Free State Department of Sport, Arts, Culture, Science and Technology, has recently received heartened encouragement when an amount of R342 000,00 was granted to the programme by the Wesbank/First Rand Foundation for the purchasing of a bus.

“Transporting the children who are part of the programme back and forth for tuition and rehearsals has been a major problem as most of them stay in the townships on the outskirts of Bloemfontein ,” said Mr Peter Guy, founder and coordinator of the programme.

“The bus will ensure that those children who have the passion, dedication and commitment can spend every afternoon if they so choose practicing, learning about music and rehearsing with children from all over Bloemfontein,” said Mr Guy.

Mr Guy, a Senior Lecturer at the Musicon, started the programme in 1998 with funding from the Musicon Parents Teachers Association, initially with 15 pupils - today 150 children participate in the programme. In 2002 the UFS formed a partnership with the Free State Musicon in the provisioning of facilities, tuition and musical instruments. “Since the involvement of the UFS, the programme has almost tripled in size and one

fulltime teaching position is now jointly funded by both institutions,” said Mr Guy.

According to Mr Guy the Free State Symphony Orchestra has committed itself to providing opportunities for gifted young players from all backgrounds to perform, develop their talents and to grow musically. Some of the children of the Mangaung String Programme will soon be joining the Free State Symphony Concert in concerts.

Media Release
Issued by: Lacea Loader
Media Representative
Tel: (051) 401-2584
Cell: 083 645 2454
E-mail: loaderl.stg@mail.uovs.ac.za
19 August 2004

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