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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

A magnificent Winter Graduation Ceremony
2013-06-27

 

28 June 2013
Photo: Johan Roux

   Winter Graduation video (YouTube)

The way to immortalise a person, is to live by his example. PhD and master's graduates were imbued by the following message from Dr Khotso Mokhele, Chancellor of the University of the Free State (UFS), during the UFS Winter Graduation Ceremony: to follow Nelson Mandela's majestic example is to guarantee that his life was not in vain.

Dr Mokhele honoured the graduates for their achievements "that clearly did not come easy", referring to the sacrifices on their part and the role of their support structures.

He also praised members of the UFS' leadership team who contributed academically to the excellent standards. Prof Teuns Verschoor, former Vice-Rector: Institutional Affairs, and Prof Driekie Hay, Vice-Rector: Academic, were especially mentioned for their role as respectively co-promoter and promoter of two PhD graduates.

A total of 63 doctorates and 414 master's degrees were awarded to graduates from South Africa, Nigeria, Lesotho, Uganda and Zimbabwe on Thursday 27 June 2013.

On the previous day, the School of Open Learning kicked off the graduation event by conferring 320 qualifications.

The graduates, most of them full-time educators, received qualifications ranging from certificates to diplomas.

"I hope that you will plough back what you have learned and that this qualification will make you a better educator, an inspired one, one that will relentlessly put your efforts into increasing a better future for our children," Prof Hay said, highlighting challenges in South Africa's education system.

"Become enthused, obsessed and passionate to change the education system. Be the change agent in your schools to contribute in giving the quality education our children so desperately need," she said.

An exceptional moment at this year's graduation ceremony was when the two daughters of an academic, Prof Dave Lubbe of the Centre for Accounting, obtained their master's degrees. "It is indeed a highlight in my career that my daughters received their master's degrees cum laude at the same graduation ceremony, under my supervision!"

Prof Lubbe's two daughters, Nandi Lubbe and Leandi Steenkamp, both received their MCom with distinctions in Accounting. They completed their degrees under the supervision of Prof Lubbe and Nandi also won the Dean's medal as the best M student in the Faculty of Economic and Management Sciences.

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