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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

Panel to discuss: 'Speaking wounds: voices of Marikana widows through art and narrative' on Monday 27 July 2015
2015-07-24

The massacre of 34 mine workers at Marikana on 16 August 2012 had South Africans in uproar. But what remained, after the razor wire was rolled up and the camera crews left, were 34 widows engulfed in silent despair. That was until the Khulumani Support Group introduced them to the transformative power of art and storytelling. In the last installment of the Vice-Chancellor’s Lecture Series for this year, a panel of speakers will discuss these widows’ journey with the theme of ‘Speaking wounds: voices of Marikana widows through art and narrative’.

Panel

The panel will consist of members from the Khulumani Support Group that include Dr Marjorie Jobson (National Director), Nomarussia Bonase (National Organiser), and Judy Seidman (Sociologist and Graphic Artist). Nomfundo Walaza, who is the former CEO of the Desmond Tutu Peace Centre, will be the respondent.

Details of the event:
Date: Monday 27 July 2015
Time: 12:00
Venue: Chancellor's Room, Centenary Complex, Bloemfontein Campus
RSVP: Nomusa Mthethwa at Nomusam@ufs.ac.za (Members of the public are welcome to attend.)

Body maps
An art exhibition consisting of body maps created by the widows will also be on display. These paintings quietly portray the turmoil of their inner landscapes, their perceptions of the massacre, and the impact these events had on their lives.



Collaboration
The lecture series is hosted by Prof Pumla Gobodo-Madikizela, Senior Research Professor in Trauma, Forgiveness, and Reconciliation Studies at the University of the Free State (UFS), as part of a five-year research project funded by the Andrew W. Mellon Foundation. This installment of the lecture series is presented in collaboration with the UFS Institute for Reconciliation and Social Justice.


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