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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

JN Boshoff Memorial Lecture: Dr Charles Nwaila

2005-09-13

Dr Charles Nwaila, Director-General of the Free State Provincial Government and Vice-Chairperson of the University of the Free State's (UFS) Council, recently discussed the repositioning of the Free State Provincial Government to respond to the 21st century demands during the JN Boshoff Memorial Lecture at the UFS.

From left: Dr Nwaila; Prof Tienie Crous, Dean: Faculty of Economic and Management Sciences; Prof Frederick Fourie, Rector and Vice-Chancellor and Dr Moses Sindane, Departmental Chairperson: Department of Public Management at the UFS.

A summary of the lecture.

Free State government to focus on training of public servants

The Free State provincial government in collaboration with higher education institutions in the province is to establish the Free State Association of Public Administration to get public servants to work effectively towards the growth and development of the province.
This was announced by the Director-General of the Free State provincial government, Dr Charles Nwaila, during a lecture he delivered at the University of the Free State (UFS) in Bloemfontein this evening (Thursday 8 September 2005).

Delivering the annual JN Boshoff Memorial Lecture at the UFS, Dr Nwaila called on higher education institutions to play a critical and leading role in the re-engineering of the existing Provincial Training and Development Institute housed at the Vista campus of the University of the Free State in Bloemfontein.

Dr Nwaila was formerly the Superintendent-General (head) of the Free State Department of Education and currently serves as the Deputy Chairperson of the Council of the University of the Free State.
He said the proposed Free State Association of Public Administration is a joint initiative with the National Academy of Public Administration based in Washington DC.

“We take this opportunity to invite the University of the Free State and other knowledge based institutions to join the Provincial Government in fostering a collaborative network to help us develop our public servants,” Dr Nwaila said.
He said there were accelerating demands and a lot of pressure on limited resources, with Free Staters expecting more from their government than ever before.

“Civil servants in a developmental state are servants of the people, champions of the poor and the downtrodden and not self-serving individuals that seek only advancement on the career ladder,” Dr Nwaila said.
According to Dr Nwaila, the Free State Growth and Development Strategy has identified 11 areas that need to be addressed by the year 2014, including:

• To reduce unemployment from 38% to 20%
• To improve the functional literacy rate from 69,2% to 85%
• To stabilize the prevalence rate of HIV and AIDS and reverse the spread of the disease
• To provide a free basic service to all households
• To provide adequate infrastructure for economic growth and development

Dr Nwaila said that the Free State government will continue to follow a people-centred approach towards these development objectives with a keen sense of unity and unwavering determination to create the best of times for the Free State and all its people.

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