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21 April 2023 | Story Leonie Bolleurs | Photo Supplied
Dr Katlego Mashiane
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

School of Medicine expands to provide quality tuition
2015-04-20

 

The School of Medicine at the University of the Free State (UFS) has recently extended various training platforms to provide continuous quality tuition to students.

Not only does the school boast a world-class dissection hall but now has plans for additional training facilities at two more hospitals.

The new dissection hall was completed in January 2015 with some final finishing touches that will be done shortly. The hall is newly built as the previous dissection hall has been used for undergraduate anatomy training since 1972.

Dr Sanet van Zyl, Senior Lecturer in the Department of Basic Medical Science, says owing to a prospective growth in the number of medical students as well as changing methods in teaching and learning, the need for a new dissection hall became evident to ensure that students get an optimal learning experience during dissection tuition.

“The new spacious dissection hall is equipped with special lighting and modern equipment for the training programme for second-year medical students. The hall is further equipped with modern sound and computer equipment. A unique camera system will allow students to follow dissection demonstrations on ten screens in the hall. Dissection demonstrations can also be recorded, enabling lecturers to put together new materials for teaching and learning.”

In addition to anatomy teaching for under- and postgraduate medical students, the Department of Basic Medical Science also offers anatomy teaching to under-graduate students from the School of Nursing, the School of Allied Health Professions as well as students from the Natural and Agricultural Sciences (such as students studying Forensic Science). The old dissection hall will still be used for the anatomy training of these students.

“The dissection programme for medical students is of critical importance, not only to acquire anatomical knowledge, but also for the development of critical skills and professionalism of our students. As already mentioned, these modern facilities will enable us to be at the forefront of current development in this field. This will benefit both present and future generations of medical students.”

At the same time, Prof Alan St. Clair Gibson, Head of the School of Medicine, announced that lecturing facilities are being developed at the Kimberley Hospital Complex. There are also plans for study facilities at the UFS’s Qwaqwa Campus and Bongani Hospital in Welkom. The UFS’s planning is also well underway for lecturing and residential facilities for students in Trompsburg, where students will receive training at the Trompsburg Hospital.

“We are very privileged to have these facilities and they will help us to provide world class training for students in the School of Medicine,” Prof St. Clair Gibson says.

 

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