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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

Young Communication student publishes second book
2014-09-03

Most people get to 90 and never publish a book. Some people at 19 have not even read a book.
But 19-year-old BA Communication student at Kovsies, Grace Nthebe, has already published two books, only in this year...

Grace writes poetry and her first book is called Reflections by Grace.

“It is a personal book and it was only by the grace of God that I could do this reflection,” says Grace.

“Reflections take a look at four aspects of myself:

- Me as a beginner in my life;
- Being a believer of love;
- Looking at critical conditions in life;
- And then finally, taking a look at myself as an African woman.”

Grace became fascinated with poetry in Grade 10. She developed as a poet more and more when she was in Grade 11 and started relying on her writing as a means to express the unexpressed.

“A friend of mine took a look at my writing and asked why I don’t have it published?”

“That was not easy, but I covered everything smoothly and took my time with it.”

More recently, Grace’s second book called Tribute to Love was also published.

“This is more of a motivational book,” she says.

“Young women often have to pretend to be ‘okay’ when going through tough times like a break-up. In Tribute to Love I go through ten basic steps to recover fully after a break-up.”

“A lot of times recovery starts with forgiveness and if you have social support, it eventually ends with learning to let go and being willing to love again. Relationships and break-ups are often phases every person goes through, but it is important to go through it in the right way…”

Grace’s books are self published by Quick Fox and available online at amazon.com

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