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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

Unconditional accreditation for Architecture at the UFS
2008-08-20

The Department of Architecture at the University of the Free State (UFS) is so far the only department of its kind in the country to obtain unconditional accreditation from the South African Council for the Architecture Profession (SACAP) for all three its programmes.

“SACAP has already visited seven out of a possible ten institutions in the country who present Architecture. Of these, only the UFS’s Department of Architecture has so far received unconditional accreditation. This is indeed an achievement for us,” said Prof. Jan Smit, Head of the Department.

According to Prof. Smit, the SACAP’s evaluation of all institutions who offer Architecture takes place every four years. During the accreditation process in 2004, the department also received unconditional accreditation for the two programmes it presented at that stage, namely the B.A.S. degree and the B.Arch. degree. Since then, the B.Arch. degree has fallen away and the qualifications the department now offers are the B.A.S. degree, B.A.S. (Hons.) and the M.Arch.(Prof.).

“The unconditional accreditation serves as proof that the qualifications obtained by our students are of value and that it enjoys local and international recognition. It is also an indication that our students’ training is up to standard,” said Prof. Smit.

The criteria students are evaluated on includes the facilities, degrees and courses presented, the standard of exam papers and assignments of a subject, the style of management and staff compilation. The panel of judges comprise of among others a representative from the Commonwealth Association of Architects (CAA), who reports to the Royal Institute of British Architects (RIBA). “This is an indication of the high level on which the evaluation is being done,” said Prof. Smit.


Media Release
Issued by: Lacea Loader
Assistant Director: Media Liaison
Tel: 051 401 2584
Cell: 083 645 2454
E-mail: loaderl.stg@ufs.ac.za  
20 August 2008
 

 

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