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

21 April 2023 | Story Leonie Bolleurs | Photo Supplied

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

Kovsies proud of a gold PRISM Award for safety campaign

2015-05-05

Stefan Lotter, Leonie Bolleurs and Lacea Loader. All three are from the Departement of Communication and Brand Management at the UFS.
Photo: Hannes Pieterse

The University of the Free State, takes pride in the gold PRISM Award (from the Public Relations Institute of Southern Africa) for the B Safe Take Action safety campaign that has been rolled out on the campus since 2013 by the Department of Communication and Brand Management.

The campaign earned the Von H Brand Provocateur gold award in the internal communication category.

“The UFS is the only tertiary institution to receive a gold award. The award is a great honour for the department, considering the cream of South African public relations took part in the competition, and the standard was naturally very high. It was also a feather in the cap for us that the uniqueness of the campaign received national recognition from our peers in this manner, said Ms Lacea Loader, Director: Communication and Brand Management at the UFS.

The university is responsible for about 32 000 students and 4 000 members of staff on its three campuses: the Bloemfontein and South Campuses in Bloemfontein and the Qwaqwa Campus in the Eastern Free State. It is of cardinal importance for the university that its students, staff, and assets are safe.

Apart from safety measures that have been implemented by the UFS Protection Services, the B Safe Take Action campaign has also been rolled out on the three campuses of the UFS. The campaign supports the safety strategy of the university. It is aimed at developing a culture of safety awareness in students and staff alike. The purpose of the campaign is for staff and students to take ownership of their own safety. In addition, it creates awareness of the safety measures that are in place at the UFS.

The campaign has been rolled out on various communication platforms. These include placards, pamphlets, lamp-post advertisements, an advertisement board, emails, and messages on student communication portals such as Blackboard, the UFS web and intranet, social media, information boards in the campus parking areas and on the pedestrian walkways as well as messages on refuse bins around the campus. “The fact that a variety of communication platforms has been deployed, the striking design and character of the messages, and the number of target audiences that have been reached further contributed to the success of the campaign,” said Ms Loader,

The campaign also received a merit award from the International Association for Business Communication (IABC). The award will be presented on 15 June 2015 in San Francisco, USA.

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