Latest News Archive

Please select Category, Year, and then Month to display items

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

UFS celebrates research excellence

2016-02-25

Researchers at the university were acknowledged for their new research ratings. From the left are: Prof Johann de Wet, Department of Communication Sciences; Prof Naomi Morgan, Department of Afrikaans and Dutch, German and French; Prof Corli Witthuhn, Vice-Rector: Research; Prof André Pelser, Department of Sociology; Dr Trudi O’Neill, Department of Microbial, Biochemical and Food Biotechnology; and Prof Riaz Seedat, Department Otorhinolaryngology.

During a recent gala occasion, the University of the Free State (UFS) acknowledged 15 of its researchers who received new ratings from the National Research Foundation (NRF).

According to Prof Corli Witthuhn, Vice-Rector: Research at the UFS, 37 applications have already been received for the next round of ratings by the NRF. In recent years, the university has experienced an increase in the rating of its researchers as the result of raised academic standards. These are in line with the Academic Project of the UFS. The UFS has 125 rated researchers in total.

The 15 recipients of new ratings from the NRF in 2015,are:

- Dr Tanya Beelders, Computer Science: Y2
- Dr Andrew Cohen, History: Y1
- Prof Pieter de Villiers, Theology: C2
- Prof Johann de Wet, Communication: C3
- Dr Angelinus Franke, Agriculture: C2
- Prof Jonathan Jansen, Education: B1
- Prof Riaan Luyt, Chemistry: B3
- Prof Naomi Morgan, Linguistics: C2
- Dr Trudi O’Neill, Microbiology: C1
- Prof André Pelser, Sociology: C3
- Dr Johann Rossouw, Philosophy: C2
- Prof Riaz Seedat, Health: C3
- Dr Jakub Urbaniak, Theology: Y2
- Dr Martin van Zyl, Mathematics: C3
- Prof Sue Walker, Soil, Crop and Climate Sciences: C1

The UFS also celebrated its five SARChI research chairs during this event. The main goal of the research chairs is to promote research excellence.

The five research chairs at the UFS are all established at Tier 1. Research chairs in the Tier 1 category are based on the researcher's research track record, as well as on the training record of his/her postgraduate and postdoctoral students. Tier 1 research chairs are awarded to established researchers who are leaders in their field, and whose work is recognised internationally.

The following research chairs have been awarded to the UFS since 2013:

- Solid State Luminescent and Advanced Materials, Prof Hendrik Swart in the Department of Physics (2013-2017)
- Disease Resistance and Quality in Field Crops, Prof Maryke Labuschagne (2016-2020)
- Higher Education and Human Development, Prof Melanie Walker (2013-2017)
- Vector-Borne and Zoonotic Pathogens, Prof Felicity Burt (2016-2020)
- Humanities without Borders: Trauma, History and Memory (2016-2020)

Back

Economic and Management Sciences

Education

Health Sciences

The Humanities

Law

Natural and Agricultural Sciences

Theology and Religion

Open Distance Learning

Business School

We use cookies to make interactions with our websites and services easy and meaningful. To better understand how they are used, read more about the UFS cookie policy. By continuing to use this site you are giving us your consent to do this.

Accept