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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

Kovsie artists to rock at Vryfees

2014-06-18

Photo: Conrad Bornman

It is the dead of winter in the heart of the Free State. The Vryfees is laying full steam ahead.

However, the talent that makes of this annual arts festival such a phenomenal success doesn’t only come from outside of our Bloemfontein Campus. This year’s productions will abound with performances by Kovsie staff, students and alumni from our Department of Drama and Theatre Arts.

Behind the scenes, our people will also play a vital role in the achievement and progress of the festival. Prof Luwes is a member of the festival committee and together with Dr Venter and Godfrey Manenye, he also serves on the artistic selection committee for theatre.

Thys Heydenrych, lecturer in the above department, was appointed as the technical manager of this year’s Vryfees. This means that he is in charge of the placement and assigning of venues for productions on campus. All the technical aspects for these venues rest on Heydenrych’s shoulders. For this huge task, he is supported by a team of technical staff which includes mostly students.

Take a look at the list of all our Kovsie artists who are working hard to make the 2014 Vryfees better than ever:

Don Juan onder die Boere
Lecturers: Walter Strydom, Gerben Kamper (director),
Students: Mark Dobson, Michael Garbett, Helet de Wet
Former students: Marijda Kamper (Wynand Mouton theatre manager), Ilne Fourie, Hilletje Möller, Chanmari Erasmus, Michelle Hoffman, An-Mari Loots, Madré van Straten

S(t)out en Peper
Lecturers: Dr Pieter Venter (director), Thys Heydenrych
Former students: Ilne Fourie, Michelle Hoffman

Nag van die Hiëna
Head of Department: Prof Nico Luwes (author and director)
Lecturers: Gerben Kamper, Minette Grové
Former students: Carel Nel, Lindy-Lee Kleynhans, Ilne Fourie, Angelo Mockie (staff member at Student Affairs)
Student: Peter Taljaard (PhD student)

Rondomskrik
Former student: Chrystal-Donna Roberts (currently Pasella presenter and previously on the set of 7de Laan)

Slaaf
Former student: Carel Nel

Te Veel vir ? Coloured Girl
Former students: Angelo Mockie (staff member at Student Affairs), Olivie Sauer

The Bar
Lecturer: Godfrey Manenye (director)
Former students: Angela Edwards, Jane Mpholo
Students: Yoliswa Jacobs and Luandro Carstens

Victoria se Geheim
Lecturer: Dr Pieter Venter (director)
Former students: Chanmari Erasmus, Carel Nel, Gené McCaskill, Michelle Hetzel
Students: Helet de Wet, Marli van der Bijl (NRF Magister Intern), Jana Coetzer, Marnel Bester

Een Kleine Lientjie
Lecturer: Walter Strydom
Former student: Anna Visser (author and director, OFM presenter)
Students: Marli van der Bijl, Charl Henning, Jana Coetzer

For more information on the productions or the Vryfees programme, follow this link:
http://www.vryfees.co.za/

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