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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

Before and After Hector
2014-03-05

 

Björn Krondorfer

The apartheid years. The Anglo-Boer War. Mix these two topics together and you are ensured of a vigorous debate.

This was exactly the result at the Centenary Complex Gallery recently. During a round-table discussion, Kovsie students analysed an artwork by Gerrit Hattingh entitled “Before and After Hector”. The artwork depicts the iconic photo of Hector Pieterson – taken during the 1976 Soweto Uprising – staged as an event in the Anglo-Boer War.

The artwork functioned as the focal point at an exhibition curated by Angela de Jesus.The exhibition formed part of the International Research Forum hosted by the UFS which explored the topic of Societies in the Aftermath of Mass Trauma and Violence.

The ensuing conversation did not disappoint. The photograph evoked a wide range of views and emotions as the students reflected on the historic image representing violent and painful events of our collective past. As the students robustly exchanged their opinions, they developed strategies to support the reconciliation process. The dialogue assisted these students in formulating ways to look back at our history and use this knowledge to carry our society past traumatic experiences.

Prof Pumla Gobodo-Madikizela, Senior Research Professor in the Office for Research on Trauma, Forgiveness and Reconciliation, was astounded at the level of insight and wisdom the students displayed. “I am pleased that our students came to join us around the table to discuss this portrait which is iconic globally; to engage and also give their own interpretations of what they know, and what they do not know about our historical past. The dialogue about the interweaving of the Hector Pieterson photograph with the story of black victims of the British concentration camps is one of the ways of exploring the views of the younger generation in the aftermath of mass trauma and violence in our collective history,” Prof Gobodo-Madikizela concluded at the end of the conversation.

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