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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

UFS Council unanimously approves two senior appointments
2014-11-24

The Council of the University of the Free State (UFS) unanimously approved the appointment of Dr Lis Lange as Vice-Rector: Academic and Prof Sechaba Mahlomaholo as Dean: Education during its meeting on Friday 21 November 2014.

Dr Lis Lange is currently Acting Vice-Rector: Academic at the University of the Free State, where she holds a substantive position as Senior Director heading the Directorate for Institutional Research and Academic Planning (DIRAP). Prof Mahlomaholo is Head of the School of Mathematics, Natural Sciences and Technology Education at the UFS.

“These are two exceptional and trusted academics with international stature and I am delighted to welcome them as part of the senior leadership of the UFS. Dr Lange’s skills set pertaining to academic management and quality assurance make her one of only a few people with similar skills in the country, while Prof Mahlomaholo is a leading expert in community-based education,” says Prof Jonathan Jansen, Vice-Chancellor and Rector of the UFS.

Dr Lange joined the UFS in 2011. Before this, she was the Executive Director (2006-2010) of the Higher Education Quality Committee of the Council of Higher Education (CHE), and Acting CEO of the same organisation between August 2007 and April 2008. She has been involved in the development and implementation of science and technology and higher education policy in South Africa for a decade and a half, working in different capacities in the Human Sciences Research Council, the National Research Foundation and the Council on Higher Education. Dr Lange has served as a member of the board of the International Network of Quality Assurance Agencies in Higher Education (INQAAHE) and has participated in several international initiatives on quality assurance. She is the editor of an academic journal focused on the humanities, Acta Academica.

She has undertaken research and published in the fields of history, higher education and quality assurance. Her major concern in both research and practice is the role of higher education in the development of democratic societies, based on social justice. Dr Lange studied in Argentina, Mexico and South Africa, where she obtained a PhD in South African history from the University of the Witwatersrand.

Prof Mahlomaholo is a graduate of the Universities of the North, Western Cape and Harvard University in the United States. He is a National Research Foundation (NRF)-rated Professor of Education.

Before joining the UFS, he worked at six other universities where he was Deputy Dean in the Faculty of Education (UNIN-QwaQwa), Head of Professional Education (Vista University), Professor and Director of Research and Postgraduate Studies (MEDUNSA), Professor and Director of Curriculum Development (Central University of Technology), and Research Professor (North-West University).

His research interests lie in designing strategies mounted on Bricolage, Participatory Action Research and Critical Emancipatory Research as theoretical bases. He leads the NRF-sponsored project on the creation of Sustainable Learning Environments in schools. In this Participatory Action Research project, 28 PhD and 22 MEd students participate under the guidance of 15 academics. The project has relationships with the Global Network project (St Petersburg University), the Post-Colonial Education project (West Indies University) and the Discourse, Power, Resistance project (Plymouth University and now University of London). He has served as guest editor in the following ISI-indexed, peer-reviewed and accredited journals: the South African Journal of Higher Education (2010 and 2014), the South African Journal of Education (2011), Communitas (2012), the Journal of New Generation Sciences (2012), the Journal for Transdisciplinary Research in Southern Africa (2013) and the Journal of Education Studies (2013).

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