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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

UFS community proud of Wayde’s hat trick of awards

2015-11-24

The Kovsie athlete Wayde van Niekerk received a hat trick of awards at the SA Sports Awards on Sunday 22 November 2015. He was named Sports Star of the Year, Sportsman of the Year, and was crowned as winner in the People’s Choice category.
Photo: Charl Devenish

Wayde changed the game – Naidoo

For a long time, AB de Villiers and Chad le Clos have dominated fan support in South Africa, but Wayde van Niekerk changed the game.

This was what Kass Naidoo, well-known sports journalist and cricket commentator, tweeted after the Kovsie athlete, Wayde van Niekerk, made a clean sweep at the tenth SA Sports Awards in his home town, Bloemfontein, on Sunday 22 November 2015.

According to Naidoo, the golden boy from the University of the Free State (UFS) is now the hottest property in South Africa, and should be watched during the 2016 Olympic Games in Rio de Janeiro.

Hat trick for Kovsie athlete
Naidoo was one of several celebrities to congratulate Van Niekerk on Twitter after Wayde received a hat trick of awards in the Sand du Plessis Theatre. The 400 m athlete was named Sports Star of the Year, Sportsman of the Year, and was crowned as winner in the People’s Choice category.

Apart from this, a humble Van Niekerk received total prize money of R1,1 million and two luxury Mercedes Benz vehicles - one for Sports Star of the Year and one as People’s Choice winner.

Big names outperformed
What makes his awards even more remarkable is the fact that he has outperformed several big names.
In addition to De Villiers and Le Clos, the tennis player, Kevin Anderson, the swimmer, Cameron van der Burgh, and the athlete, Caroline Wöstmann, were all nominated for Sports Star of the Year.

For the People’s Choice Award, Van Niekerk beat De Villiers, the cyclist, Ashleigh Moolman-Pasio, (who was crowned Sportswoman of the Year), Le Clos, and the wheelchair tennis player, Lucas Sithole. The public voted for this award.

Le Clos was nominated with the mountain biker, Greg Minnaar, for Sportsman of the Year.

Best is yet to come
“I don't think we have seen the best of Wayde. Hopefully that will come in Rio next year, along with a gold medal,” Naidoo tweeted.

The Springbok winger, JP Pietersen, also congratulated Van Niekerk on the social network, saying that he deserved his award as Sportsman of the Year.

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