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Curiosity about environmental changes drives Dr Katlego Mashiane’s PhD research

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

Student gives hope to childhood cancer patients

2015-10-16

Siphokuhle Jama believes that the underprivileged are also destined to reign.

The inaugural ‘Dance and Musical Childhood Cancer Fundraising Day’, held on Saturday 26 September 2015 at the Free State Childhood Cancer (CHOC) Foundation, was “a huge success,” according to Siphokuhle Jama, the organiser.

Siphokuhle is a second-year BSc Agricultural Economics student at the University of the Free State (UFS), who has devoted his life to bettering the lives of the less fortunate. The 21-year-old self-proclaimed motivational speaker, entrepreneur, and budding author was inspired by his humble beginnings to found the Destined to Reign Foundation, which champions various community initiatives in both his home town of Mtata and Bloemfontein.

To support the fight against childhood cancer, the young philanthropist took it upon himself to invite music and dance fanatics either to perform or to enjoy spectatorship for a good cause. The impressive support received from the UFS, Universitas Academic Hospital, and Central University of Technology (CUT), various artists, and the community has contributed towards ensuring that the inaugural fundraiser was a prelude to annual events to come.

Singers, dancers, and poets entertained the audience with vigour, making the day one of the most special for the young children, who spend their days and nights at the CHOC House, with little to do but undergo radiation and chemotherapy and await a discharge date. .

All proceeds went towards basic needs, such as food, toiletries, and clothing for the children residing at the House, which is located in the same suburb as our university. In addition to accommodating dozens of cancer patients and their mothers, the House also assists with the treatment and rehabilitation of children suffering from life-threatening blood disorders. Thus, the fundraiser served to promote awareness of these health conditions.

Siphokuhle’s passion for giving hope to the underprivileged was unveiled by a school community engagement project 14 years ago. He has never looked back.“It has always been in my heart to serve my community,” he said.

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