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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

Internationally-renowned futurist proposes innovation in corporate management
2016-05-10

Description: Pieter Geldenhuys  Tags: Pieter Geldenhuys

Pieter Geldenhuys, guest speaker at the seminar, who mapped the future of corporate management  (left) with Dr Vic Coetzee, Senior Director: Information and Communication Technology Services at the UFS (right).
Photo: Hatsu Mphatsoe

Humans need to adapt their thinking to the world’s changes. This is Pieter Geldenhuys’s conviction.

The Information and Communication Technology Services (ICT) at the University of the Free State hosted a seminar on 22 April 2016 at the Bloemfontein Campus. Geldenhuys, the Director of the Institute for Technology Strategy and Innovation at North-West University and internationally-renowned futurist, presented his views on technology, innovation, and corporate management on this occasion.

Geldenhuys, a well- known speaker, academic, and futurist, is in the business of identifying opportunities in the changing technological and social landscape with the aim of assisting companies to prepare for the future, while being an active agent in defining it. Lately, he has been exploring the concept of a new kind of management science, which he believes is a prerequisite for institutions such as ours.

This management science incorporates physics in improving corporate management. “We have an unbelievable grasp of the world of physics,” he said, suggesting that we use our knowledge of nature to capitalise on individual and collective strengths within institutions.

He said that minor changes can change one’s future or that of an organisation completely. He even went as far as to state that the culture of an organisation is the one that determines how well you do. Relating to the adaption of organisations in a constantly changing and dynamic environment, Geldenhuys advised that, “when faced with disruption, don’t retaliate; accept.” 

By making use of different tools, such as technology aw well as social and business trends, Geldenhuys is adamant that corporations and institutions will adapt easily to the world’s complex systems.

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