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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

Teacher training key to democracy and freedom
2011-12-06

 

MEC Mr Tate Makgoe (left) with Faculty of Education’s Prof. Dennis Francis, holding the inaugural SURLEC Award. With them is Dr Dipane Hlalele.
Photo: Thabo Kessah

Universities have the responsibility to respond to the challenges that the South African education system is faced with.

This is the view of the Free State MEC for Education, Mr Tate Makgoe, during his address at the three-day First Sustainable Rural Learning Ecologies (SURLEC) Colloquium, which was recently held at the Qwaqwa Campus of the University of the Free State (UFS).
 
“Our universities must not only research the failures of our system. They must also come up with solutions.
 
“One of the questions that demand answers in our country is whether we produce quality teachers at our universities, considering our learners’ performance internationally. Our children lack the basics like grammar and yet we are 17 years into democracy. Why is their performance so poor in comparison to children in poorer countries?” asked Mr Makgoe.
 
“We must work together as a Government and universities to change this. Universities must be anchors of democracy and freedom, which is meaningless if our children cannot read and write. We must also focus on Mathematics and Natural Sciences, not forgetting to value our indigenous knowledge and games to enhance learning, especially in Mathematics,” he said.
 
According to Dr Dipane Hlalele, Head of the Faculty of Education at the UFS Qwaqwa Campus, the colloquium was held to search for best practices and success stories relating to the theme, Creating sustainable rural learning ecologies in the 21st century.
 
“Our objective was to tap into experiences and wisdom of policy makers, researchers, scholars, teachers and students in order to map a new direction in research as well as to make an indelible mark on the revitalisation of this campus,” concluded Dr Hlalele.
 
The UFS Dean of Education, Prof. Dennis Francis’ efforts to improve rural education were honoured with the first ever SURLEC Award.
 
Over 70 research papers from the universities of the Free State, South Africa, Venda, KwaZulu-Natal, Limpopo and the Cape Peninsula University of Technology were delivered and learners from the local schools like The Beacon, Mafube, Qwaqwa and Clubview presented their winning projects at the Science Expo.

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