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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

Messages and mail – what people say about Kovsies
2014-10-02

 
Letters from Kovsie students, parents, the community and even visitors to our university from across the globe regularly pour into our mailboxes and onto our social media pages.

To give you a glimpse of what they say about our institution, here are a few examples:

•    If you continue with this innovative thinking then the UFS will soon become the Ivy League institution of South Africa. – Chris Abels, United Kingdom

•    My daughter loves Kovsies. She has really come out of her shell as a result of the wonderful environment created by Kovsie leaders. She is flourishing and has for the second year in a row achieved the distinction of being a top academic student. Once again, thank you for your kind assistance which clearly indicates to me that Kovsies treat their students like family and not merely a number. – Grant Combrink, Port Elizabeth

•    The state of the University of Free State inspired me to go back to school and do my law degree. The cleanliness and the mood of the institution was inspirational and not only to me but also to a few of my colleagues. – Joseph Peter Kgomo, a journalist with the public broadcaster

•    I arrived in Bloemfontein to begin a one year appointment as a Fulbright Scholar. I have remarked to friends and colleagues in America that we can learn a great deal about hospitality towards our foreign visitors by embodying the altruism demonstrated throughout your campus. Thank you for the opportunity to become a Kovsie. – Professor Brenda C Eppley, Professor at Area Community College in Harrisburg, Pennsylvania, USA

•    I would like to congratulate you on the job well done regarding transformation and integration thereof. Indeed, the UFS that I am in is not the UOVS that I was in. – Tefo Masoetsa

•    I attended the Oprah Winfrey graduation ceremony in 2009 and when Dr Desmond Tutu received his honorary Doctorate. On both occasions one felt something big and miraculous was happening and many in the audience were moved. You are doing something down there in the Free State that really deserves attention! – Joy Summers, Producer: Carte Blanche

•    There will be much more hurt before our country is healed, but it will be the Kovsie doctors, psychiatrists and teachers applying the plasters and it will be the Kovsie architects, quantity surveyors, jurists and farmers building and regulating a new country. – Marzanne Lombard, proud former member of Soetdoring and Welwitschia Residences

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