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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

Ghanaian academic speaks about next generation of African scholars
2013-10-08

 

Attending the seminar were from left: Adv Erika Cilliers, Sisa Mlonyeni (both from the Office of the Public Protector), Prof Adomako Ampofo and Prof Heidi Hudson, Head of the Centre for Africa Studies.
Photo: Jerry Mokoroane
08 October 2013

Prof Akosua Adomako Ampofo, one of the Centre for Africa Studies’newly-appointed advisory board members, addressed students and staff on 3 October 2013. Her topic Are you the scholar Africa needs?enthralled the audience with the passionate way in which she argued for nurturing activist-scholars rather than scholars who simply produce knowledge for the sake of it. “It is more urgent than ever before that … we do not simply see our roles as researchers and teachers, but that we are committed to impacting our communities” for the better – also by “making our knowledge production globally visible,” she argued. Africa is said to contribute less than 0.5 percent of the world’s scientific publications. The fact that most of these – and nearly all of the social science production – emanate from just three nations (Egypt, Nigeria and South Africa) means that many countries are absent from the radar.

According to her, the next generation of African scholars will have to compete within a hostile terrain where private universities are proliferating and costs of higher education are on the rise. These scholars will have to possess 22nd century skills, but a 20th century heart and sensitivity for the continent and its people.

Drawing on Kwame Nkrumah, Prof Ampofo proposed three guiding principles for becoming the scholars Africa needs. Firstly, by having a passion for knowledge as well as an Africa-centred knowledge – “nobody can tell our stories better than we can.”. Secondly, to translate our research into outputs not only in the form of internationally-recognised publications, but also in popular sources that will be read by a much wider public. And lastly, to carrying the torch for teaching and learning in the classroom – preparing our students to serve Africa or, as Nkrumah said, producing “devoted men and women with imagination and ideas, who, by their life and actions, can inspire our people to look forward to a great future.”.

Akosua Adomako Ampofo is a Professor of African and Gender Studies, and Director of the Institute of African Studies at the University of Ghana, Legon. An activist-scholar, her current work addresses African knowledge systems; race, ethnicity and identity politics; gender-based expressions of violence; constructions of masculinities; women and work; and popular culture. She is currently co-editing a volume titled, Transatlantic Feminisms: Women and Gender in Africa and the African Diaspora.In 2010, she was awarded the Sociologists for Women in Society Feminist Activism Award.


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