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21 April 2023 | Story Leonie Bolleurs | Photo Supplied
Dr Katlego Mashiane
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

Contemporary Modes of Othering at UFS this May
2015-05-18

 

The Centre for Africa Studies at the UFS is hosting an interdisciplinary project on the Bloemfontein Campus from 20-22 May 2015.

The project, entitled Contemporary Modes of Othering: Its Perpetuation and Resistance, will look at different perspectives, representations, and art forms of otherness, how it is perceived, and how it is resisted.

The programme, which will run over three days, is as follows:

Wednesday 20 May at 19:00

Official Opening of Exhibition: ‘Representations of Otherness and Resistance’
Johannes Stegmann Art Gallery, Sasol Library
Opening: Prof Lucius Botes
Speaker: Ms Annali Dempsey, Curator UJ Art Gallery
Exhibition will run from 21 May to 19 June 2015

Thursday 21 May

10:00-11:00
Critical Dialogue: ‘Representations of Otherness and Resistance’
Johannes Stegmann Art Gallery (Facilitator: Prof. Gobodo-Madikizela)

11:30-13:00
Roundtable: ‘Music, Resistance, and the Residue of Race’
Odeion School of Music, Odeion Room 6

14:00-15:00
Seminar: ‘Reading the Past across Generations through the Image of the Hector Pieterson Iconic Photograph: Shaping of a New Consciousness’
Prof Gobodo-Madikizela, FGG 201

16:00-17:00
Seminar: Living Motswako, Centre for Africa Studies
President Steyn Annex Building, Committee Room (ground floor)

18:00-20:00
Africa Day Memorial Lecture ‘Youth Protests and Political Change in Africa’
Prof Alcinda Honwana, CR Swart Auditorium

Friday 22 May

10:00-11:00
Seminar: ‘Collectively Born (Un)free’, Prof. Steyn Kotze, FGG 201

11:00-11:30
Tea/Coffee Break, Scaena Foyer

11:30-12:30
Visual Presentation: ‘Linguistic Tokenism and Branding through Art in SA Advertising’
Prof Van Niekerk & Dr Conradie, Scaena Foyer

12:30-13:30
Performance: ‘Playland’
Scaena Teatre (Facilitator: Mr Willem Ellis)

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