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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

University ready for 2013 registration process
2012-12-05

16 November 2012

Thousands of new first-year students are expected at the University of the Free State (UFS) in January 2013 and the University is ready to receive them. Everything is in place to allow the registration process to run smoothly for new, as well as senior students.

As in previous years, the Callie Human Centre will be the central point during the registration process. Students will get advice on registration, admission, academic programmes, class fees, residences and other information there.

New first-year students and their parents or guardians will be welcomed on the Qwaqwa Campus on 18 January 2013 and on the Bloemfontein Campus on 19 January 2013 by Prof. Jonathan Jansen, Vice-Chancellor and Rector. Four sessions are scheduled in which Prof. Jansen will spend time with new students of the different faculties on the Bloemfontein Campus. New first-year students will register from 21 to 25 January 2013.

Registration for senior students will commence on 14 January 2013. Those who do not live in university residences register from 14 to18 January 2013, while students who live in residences can register from 28 to 31 January 2013.

For further enquiries, contact the UFS Information Office on 051 401 3000. For more information on the registration process, visit our webpage and click on the heading More about us.

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