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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

Emily Matabane transforms perceptions of the deaf community
2014-09-22

 

Emily Matabane

September is International Deaf Awareness Month and Emily Matabane – a lecturer at our Department of Sign Language – let us into the world of the deaf. A world she herself lives in.

Through the aid of Tshisikhawe Dzivhani, an interpreter, Matabane shared her experiences with us in a question and answer (Q & A) session.

Q: Tell us about your career as a lecturer in Sign Language.

A: I started working at the university as a Sign Language lecturer in 2000. I have a lot of deaf and hard of hearing people in my family and I also went to a deaf school. My mother is hard hearing and after graduation I taught her sign language. This made me want to teach other people sign language, who in turn will teach more people as well.

Q: What are common misconceptions about the deaf community?

A: Hearing people will often think you are stupid if you are deaf. But in fact we can still understand people – for instance, if they write down what they want to say when we don’t have an interpreter with us.

People also thought I couldn’t drive or buy a car because I am deaf – while I actually had a valid driver’s license. When I wanted to get a loan at the bank to buy my car, they wanted a doctor’s letter to prove that I’m allowed to drive, even though I have a license. Eventually, I did get the loan and I did buy the car!

Q: How can hearing people support the deaf community?

A: People can learn sign language. That is what I wanted to achieve when coming to university as a Sign Language lecturer. Hearing students who will become psychologists, teachers and social workers will be able to work with deaf people and perhaps teach others sign language too. Deaf people simply need more people to socialise with them.

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