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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

New residences open on Bloemfontein Campus

2013-01-21

Photo: Johan Roux
21 January 2013

Beginning 2013, the Bloemfontein Campus is seeing the opening of two new residences where male and female students will be housed under one roof but in separate units. Each residence will house 250 students.

House ConLaurês and House Outeniqua were opened for their first-years and Residence Committee (RC) on Friday 18 January 2013. The two newly Residence Heads, Mr Frank Makhabane (ConLaurês) and Mrs Leani Wimble (Outeniqua) welcomed the new residents.

The uniqueness of these residences is that they will be the first co-ed residences on campus. These residences are wheel chair friendly with fully equipped disabled rooms available. All signage has also been done in Braille. Each floor of the new residences has two lounges, as well as a fully fitted kitchen.

The Prime of House ConLaurês, Sherilyn Roelofse, says, “We aim to create a living space that is holistic and welcoming and will allow our residence members to be able to excel in a number of things”. Sherilyn says ConLaurês comes from the word “Condo Laurus”, which means dreams of victory. The House’s slogan is “The Symphony of Dreams”. Students came up with the name for the residence.

Tsatsi Mokoena, RC member responsible for RAG at House ConLaurês says RC members have been working hard for the past few months, trying to imagine how to do things without a physical structure. ConLaurês will be a residence with an inspirational living space where each student feels welcome, respected for who they are and at home, so that they will have the confidence to follow their dreams.”

The Prime of Outeniqua, Vusumzi Mesatywa says, “Change is always welcome and that is the mindset that we will be embracing as the new residences. When a student graduates, we need them to graduate not only as academics, but also as humans, holistic beings”.

Marla Stanier, RC First-Year Mentor at Outeniqua, says that new experiences await every student that walks through the doors of the residence. “As excited as we are, this new experience will test us in many ways.However, if we stand together as one, we will succeed.”

Mr Quintin Koetaan, Director of Housing and Residence Affairs, says, “The opening of ConLaurês and Outeniqua is a dream come true, providing accommodation for a new generation of students in the 21st Century”.

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