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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

Tough future if nothing changes in Africa
2015-02-20

 

The Department of Political Studies and Governance at the UFS recently hosted a workshop with the Osaka School for International Public Policy and the Southern African Centre for Collaboration in Peace and Security Studies.

The workshop, which was held on Thursday 12 February, had the theme of Perspectives on African Peace and Security. During workshop sessions, thoughts and views on peace and security were discussed for both African and South African circumstances. This was the fourth year of this joint workshop at the UFS.

Prof Hussein Solomon from the Department of Political Studies and Governance at the UFS shared some notes:

“In terms of South Africa, the fact that only 11% of South Africans have a post-school education holds negative prospects for us attaining a so-called ‘knowledge economy’”, says Prof Solomon.

“This also means that unemployment will continue to remain high since, in certain key areas, the South African economy is quite sophisticated, and needs a sophisticated labour force. Therefore, high unemployment translates into further social unrest, especially if one considers that youth unemployment is approaching 50%.”
 
Moving to broader issues in Africa, Solomon states that governance remains a challenge.

“There is a need to move away from Eurocentric forms of governance to more hybrid forms, implementing a mix of western forms of governance alongside more traditional forms.”

“Otherwise, the probability of conflict remains high as we look into the future. The possibility of water wars between African states is distinct.”

“Terrorism too will be with us for some time to come, with three terrorist attacks per day in Africa. Making matters worse, whether it is conflict over water or terrorist atrocities, is the African Union’s inability to resolve these issues. It simply does not have the capacity”, says Solomon.

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